Riddlesdown to Coulsdon South Walk

Happy Valley and Farthing Down, close to London (Zone 6)

Hiking weather forecast

Surrey hourly weather (Visual Crossing)

Sunset: 17:48. Dusk: 18:21. Dark: 19:00. Moon 31% (dusk to 00:32)

Updated: Tue, 04-Mar at 11:39

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Wed, 05 Mar 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Thu, 06 Mar 0% 0% 0% 0% 0% 0% 0% 3% 3% 3% 3% 3% 3% 32% 32% 32%
Fri, 07 Mar 48% 48% 48% 48% 48% 48% 48% 29% 29% 29% 29% 29% 29% 19% 19% 19%
Sat, 08 Mar 7% 3% 3% 3% 3% 3% 3% 3% 3% 3% 3% 3% 3% 3% 3% 3%
Sun, 09 Mar 7% 26% 26% 26% 26% 26% 26% 29% 29% 29% 29% 29% 29% 26% 26% 26%
Mon, 10 Mar 36% 32% 32% 32% 32% 32% 32% 42% 42% 42% 42% 42% 42% 16% 16% 16%
Tue, 11 Mar 7% 23% 23% 23% 23% 23% 23% 29% 29% 29% 29% 29% 29% 19% 19% 19%
Wed, 12 Mar 7% 7% 7% 7% 7% 7% 7% 10% 10% 10% 10% 10% 10% 7% 7% 7%
Thu, 13 Mar 7% 10% 10% 10% 10% 10% 10% 13% 13% 13% 13% 13% 13% 3% 3% 3%
Fri, 14 Mar 0% 3% 3% 3% 3% 3% 3% 19% 19% 19% 19% 19% 19% 16% 16% 16%
Sat, 15 Mar 13% 16% 16% 16% 16% 16% 16% 16% 16% 16% 16% 16% 16% 10% 10% 10%
Sun, 16 Mar 3% 13% 13% 13% 13% 13% 13% 16% 16% 16% 16% 16% 16% 10% 10% 10%
Mon, 17 Mar 7% 13% 13% 13% 13% 13% 13% 23% 23% 23% 23% 23% 23% 10% 10% 10%
Tue, 18 Mar 3% 7% 7% 7% 7% 7% 7% 7% 7% 7% 7% 7% 7% 10% 10% 10%

Percentages are the chance of rain.

Weather data by Visual Crossing

Surrey hourly weather (Open Meteo)

Sunset: 17:48. Dusk: 18:21. Dark: 19:00. Moon 31% (dusk to 00:32)

Updated: Mon, 20-Jan at 08:36

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today 0% 0% 0% 0% 3% 3% 0% 0% 0% 0% 0% 0% 0% 0%
Tue, 21 Jan 🌫 0% 🌫 0% 🌫 0% 🌫 0% 🌫 0% 🌫 0% 0% 0% 0% 0% 0% 0% 0% 0% 3% 🌫 5%
Wed, 22 Jan 🌫 20% 28% 🌫 38% 🌫 43% 🌫 39% 31% 25% 24% 25% 25% 24% 22% 20% 19% 17% 15%
Thu, 23 Jan 3% 3% 3% 4% 5% 6% 8% 11% 16% 22% 27% 31% 33% 33% 30% 26%
Fri, 24 Jan 30% 35% 41% 47% 54% 58% 60% 58% 54% 48% 42% 36% 33% 32% 33% 35%
Sat, 25 Jan 51% 53% 54% 56% 57% 58% 58% 58% 57% 55% 54% 52% 50% 48% 46% 44%
Sun, 26 Jan 26% 23% 22% 20% 19% 18% 18% 18% 19% 20% 21% 23% 25% 27% 29% 32%
Mon, 27 Jan 53% 55% 58% 60% 62% 64% 65% 49% 44% 39% 36% 34% 32% 30% 27% 26%
Tue, 28 Jan 35% 36% 36% 35% 32% 28% 26% 28% 33% 35% 34% 30% 26% 21% 14% 10%
Wed, 29 Jan 29% 27% 24% 23% 23% 24% 26% 28% 30% 32% 33% 33% 32% 28% 23% 19%
Thu, 30 Jan 19% 19% 20% 20% 21% 22% 23% 25% 26% 28% 30% 31% 32% 31% 30% 28%
Fri, 31 Jan 19% 19% 20% 21% 22% 23% 23% 22% 20% 18% 16% 14% 13% 12% 11% 11%
Sat, 01 Feb 13% 14% 16% 17% 18% 19% 19% 19% 18% 17% 16% 14% 13% 11% 10% 8%
Sun, 02 Feb 0% 0% 1% 2% 3% 5% 6% 7% 9% 10% 11% 12% 13% 13% 13% 12%
Mon, 03 Feb 13% 14% 14% 15% 15% 16% 16% 16% 16% 16% 16% 16% 16% 16% 15% 15%
Tue, 04 Feb 13% 13% 13% 13% 13% 13% 13% 13% 14% 14% 15% 15% 16% 17% 17% 18%

Percentages are the chance of rain.

Weather data by Open-Meteo

Surrey hourly weather (Met Office)

Sunset: 17:48. Dusk: 18:21. Dark: 19:00. Moon 31% (dusk to 00:32)

Updated: Tue, 04-Mar at 10:00

06 09 12 15 18 21
Today 0% 0% 0% 0%
Wed, 05 Mar 🌫 16% 2% 0% 0% 0% 0%
Thu, 06 Mar 0% 0% 0% 1% 1% 7%
Fri, 07 Mar 14% 14% 12% 11% 7% 6%
Sat, 08 Mar 1% 1% 1% 1% 3% 3%
Sun, 09 Mar 1% 4% 2% 3% 4% 7%
Mon, 10 Mar 7% 6% 7% 7% 7% 7%
Tue, 11 Mar 10% 11%

Percentages are the chance of rain.

Weather data by Met Office

Regional weather (Met Office)

Sunset: 17:48. Dusk: 18:21. Dark: 19:00. Moon 31% (dusk to 00:32)

Updated: Tue, 04-Mar at 11:38

South East England

A fine and sunny day ahead, cold again overnight.

  • Mist and fog clearing through the early morning to give another fine day, with relatively strong sunshine for the time of year
  • Breezy through the afternoon
  • Maximum Temperature 13C

Tonight:

  • Clear skies will lead to another cold night with a widespread frost forming
  • Mist or fog likely developing too overnight, mainly in the south
  • Light winds
  • Minimum Temperature -4C

Wednesday:

  • Another fine day ahead once mist and fog clears through the morning, feeling pleasant in the strengthening spring sunshine
  • Light winds persisting
  • Maximum Temperature 14C

Outlook for Thursday to Saturday:

  • Dry and sunny on Thursday, breezy at times
  • Unsettled on Friday, cloudy with rain or showers pushing northeast
  • Saturday cloudy and drier
  • Temperatures feeling mild

UK Day 6-7 and week 2

  • Likely mild at the start of this period and feeling warm in any sunny spells
  • However, conditions will be fairly changeable with a chance of showers or longer spells of rain across all areas, these more likely, at least at first, in the west
  • How weather patterns evolve during the following week is unclear but there is an increased chance that high pressure will become more dominant for a time from the north
  • This would result in a good deal of dry weather but also lead to a downturn in temperatures with a low chance of a colder spell and wintry hazards
  • Low confidence by the end of the period but with an increasing chance of milder but more unsettled conditions developing again

UK Week 3 and 4

  • Confidence is low in prevailing weather patterns through this period
  • There is likely to be a mixture of unsettled and settled spells but it is unclear which will be more dominant
  • As is typical, parts of the west and northwest will probably be wetter overall with drier conditions in the southeast
  • Above average temperatures are more likely than below though some colder spells remain possible during late March

Weather data by Met Office

Surrey Air Quality (Pollen and UV)

Updated: Tue, 04-Mar at 11:36

Key : Low Medium High Very High

00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Today air q UV   air q UV   air q UV   air q UV   air q UV   air q UV   air q UV   air q     air q     air q     air q     air q     air q    
Wed, 05 Mar air q     air q   alder air q   alder air q   alder air q     air q     air q     air q UV   air q UV   air q UV   air q UV alder air q UV alder air q UV alder air q UV alder air q UV alder air q UV alder air q UV alder air q UV alder air q   alder air q   alder air q   alder air q   alder air q   alder air q   alder
Thu, 06 Mar air q   alder air q   alder air q   alder air q   alder air q   alder air q   alder air q   alder air q UV alder air q UV alder air q UV alder air q UV alder air q UV alder air q UV alder air q UV alder air q UV alder air q UV alder air q UV alder air q UV alder air q   alder air q   alder air q   alder air q   alder air q   alder air q   alder
Fri, 07 Mar air q   alder air q   alder air q   alder air q   alder air q   alder air q   alder air q   alder air q   alder air q UV alder air q UV alder air q UV alder air q UV alder air q UV alder air q UV alder air q UV alder air q UV alder air q UV alder air q UV alder air q   alder air q   alder air q   alder air q   alder air q   alder air q   alder

Pollens

These pollens are shown (in season):

  • Grass
  • Alder and birch (trees)
  • Mugwort and Ragweed (weeds)

When out walking, wraparound glasses, a disposable or washable facemask, and being at the front of the group, all help.

Other forecasts: Met Office, University of Worcester

UV and Air Quality

The UV forecast takes account of cloud cover.

"Air Q", the European Air Quality index, is a mix of dust/particulates, ozone, sulphur and nitrous oxides

Data

Weather data by Open-Meteo and CAMS ENSEMBLE

Surrey Visibility

Updated: Mon, 20-Jan at 08:36

06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21
Today 9km 8km 7km 7km 8km 8km 11km 12km 9km 6km 5km 6km 6km 6km
Tue, 21 Jan 0km 0km 0km 0km 0km 0km 1km 8km 24km 19km 21km 13km 7km 5km 5km 3km
Wed, 22 Jan 1km 1km 2km 2km 3km 7km 17km 25km 38km 28km 22km 14km 9km 6km 5km 7km
Thu, 23 Jan 3km 5km 7km 9km 14km 19km 24km 28km 32km 37km 30km 24km 17km 16km 15km 14km
Fri, 24 Jan 14km 13km 11km 10km 10km 11km 11km 11km 11km 11km 11km 12km 12km 13km 14km 15km

Visibility in km. Above 50km is 'good'. Humidity and air pollution make it worse. Theoretical maximum is 300km/200 miles in clean dry polar air.

On the South Downs, at ~ 170m/500ft, the horizon is is ~ 45km/30 miles away. On a mountain at 1,000m/3,000ft, it is ~ 160km/100 miles away. Formula: horizon in km = √ (13 x altitude in m)

Weather data by Open-Meteo

Surrey daylight

Date Light Dawn Sunrise Max Ht. Sunset Dusk Dark Day Length
Tue, 04-Mar 05:28 06:07 06:40 12:13 17:48 18:21 19:00 12:14
Wed, 05-Mar 05:26 06:04 06:38 12:13 17:50 18:23 19:01 12:18
Thu, 06-Mar 05:24 06:02 06:35 12:13 17:51 18:25 19:03 12:22
Fri, 07-Mar 05:22 06:00 06:33 12:13 17:53 18:26 19:05 12:26
Sat, 08-Mar 05:20 05:58 06:31 12:12 17:55 18:28 19:07 12:29
Sun, 09-Mar 05:17 05:56 06:29 12:12 17:56 18:30 19:08 12:33
Mon, 10-Mar 05:15 05:54 06:27 12:12 17:58 18:31 19:10 12:37
Tue, 11-Mar 05:13 05:51 06:24 12:12 18:00 18:33 19:12 12:41
Wed, 12-Mar 05:11 05:49 06:22 12:11 18:02 18:35 19:13 12:45
Thu, 13-Mar 05:08 05:47 06:20 12:11 18:03 18:36 19:15 12:49
Fri, 14-Mar 05:06 05:45 06:18 12:11 18:05 18:38 19:17 12:53
Sat, 15-Mar 05:04 05:42 06:15 12:11 18:07 18:40 19:19 12:57
Sun, 16-Mar 05:01 05:40 06:13 12:10 18:08 18:42 19:21 13:01
Mon, 17-Mar 04:59 05:38 06:11 12:10 18:10 18:43 19:22 13:05
Tue, 18-Mar 04:57 05:36 06:09 12:10 18:12 18:45 19:24 13:09
Wed, 19-Mar 04:54 05:33 06:06 12:09 18:13 18:47 19:26 13:13
Thu, 20-Mar 04:52 05:31 06:04 12:09 18:15 18:48 19:28 13:17
Fri, 21-Mar 04:49 05:29 06:02 12:09 18:17 18:50 19:29 13:21
Sat, 22-Mar 04:47 05:26 06:00 12:09 18:19 18:52 19:31 13:25
Sun, 23-Mar 04:45 05:24 05:57 12:08 18:20 18:54 19:33 13:29
Mon, 24-Mar 04:42 05:22 05:55 12:08 18:22 18:55 19:35 13:33
Tue, 25-Mar 04:40 05:19 05:53 12:08 18:24 18:57 19:37 13:37
Wed, 26-Mar 04:37 05:17 05:50 12:07 18:25 18:59 19:39 13:41
Thu, 27-Mar 04:35 05:15 05:48 12:07 18:27 19:00 19:41 13:45
Fri, 28-Mar 04:32 05:12 05:46 12:07 18:29 19:02 19:42 13:49
Sat, 29-Mar 04:30 05:10 05:44 12:06 18:30 19:04 19:44 13:53
Sun, 30-Mar 05:28 06:08 06:41 13:06 19:32 20:06 20:46 13:57
Mon, 31-Mar 05:25 06:06 06:39 13:06 19:34 20:07 20:48 14:01
Tue, 01-Apr 05:23 06:03 06:37 13:06 19:35 20:09 20:50 14:05
Wed, 02-Apr 05:20 06:01 06:35 13:05 19:37 20:11 20:52 14:09
Thu, 03-Apr 05:18 05:59 06:32 13:05 19:39 20:13 20:54 14:14
Fri, 04-Apr 05:15 05:56 06:30 13:05 19:40 20:14 20:56 14:18
Sat, 05-Apr 05:13 05:54 06:28 13:04 19:42 20:16 20:58 14:22
Sun, 06-Apr 05:10 05:52 06:26 13:04 19:44 20:18 21:00 14:26
Mon, 07-Apr 05:07 05:49 06:24 13:04 19:45 20:20 21:02 14:30
Tue, 08-Apr 05:05 05:47 06:21 13:04 19:47 20:21 21:04 14:34
Wed, 09-Apr 05:02 05:45 06:19 13:03 19:48 20:23 21:06 14:38
Thu, 10-Apr 05:00 05:42 06:17 13:03 19:50 20:25 21:08 14:42
Fri, 11-Apr 04:57 05:40 06:15 13:03 19:52 20:27 21:10 14:46
Sat, 12-Apr 04:55 05:38 06:13 13:02 19:53 20:29 21:12 14:50
Sun, 13-Apr 04:52 05:35 06:10 13:02 19:55 20:30 21:14 14:54
Mon, 14-Apr 04:50 05:33 06:08 13:02 19:57 20:32 21:16 14:58
Tue, 15-Apr 04:47 05:31 06:06 13:02 19:58 20:34 21:18 15:03
Wed, 16-Apr 04:45 05:29 06:04 13:01 20:00 20:36 21:20 15:07
Thu, 17-Apr 04:42 05:26 06:02 13:01 20:02 20:38 21:22 15:11
Fri, 18-Apr 04:40 05:24 06:00 13:01 20:03 20:39 21:24 15:15
Sat, 19-Apr 04:37 05:22 05:58 13:01 20:05 20:41 21:26 15:19
Sun, 20-Apr 04:34 05:20 05:56 13:01 20:07 20:43 21:28 15:23
Mon, 21-Apr 04:32 05:17 05:54 13:00 20:08 20:45 21:31 15:27
Tue, 22-Apr 04:29 05:15 05:51 13:00 20:10 20:47 21:33 15:31
Wed, 23-Apr 04:27 05:13 05:49 13:00 20:12 20:48 21:35 15:35
Thu, 24-Apr 04:24 05:11 05:47 13:00 20:13 20:50 21:37 15:39
Fri, 25-Apr 04:22 05:09 05:45 13:00 20:15 20:52 21:39 15:43
Sat, 26-Apr 04:19 05:06 05:43 13:00 20:17 20:54 21:41 15:47
Sun, 27-Apr 04:17 05:04 05:42 12:59 20:18 20:56 21:44 15:51
Mon, 28-Apr 04:14 05:02 05:40 12:59 20:20 20:58 21:46 15:55
Tue, 29-Apr 04:12 05:00 05:38 12:59 20:22 20:59 21:48 15:59
Wed, 30-Apr 04:09 04:58 05:36 12:59 20:23 21:01 21:50 16:03
Thu, 01-May 04:07 04:56 05:34 12:59 20:25 21:03 21:53 16:07
Fri, 02-May 04:04 04:54 05:32 12:59 20:26 21:05 21:55 16:11
Sat, 03-May 04:02 04:52 05:30 12:59 20:28 21:07 21:57 16:14
Sun, 04-May 03:59 04:50 05:28 12:59 20:30 21:09 21:59 16:18
Mon, 05-May 03:57 04:48 05:27 12:58 20:31 21:10 22:02 16:22
Tue, 06-May 03:54 04:46 05:25 12:58 20:33 21:12 22:04 16:26
Wed, 07-May 03:52 04:44 05:23 12:58 20:34 21:14 22:06 16:30
Thu, 08-May 03:50 04:42 05:21 12:58 20:36 21:16 22:09 16:33
Fri, 09-May 03:47 04:40 05:20 12:58 20:38 21:18 22:11 16:37
Sat, 10-May 03:45 04:38 05:18 12:58 20:39 21:19 22:13 16:41
Sun, 11-May 03:43 04:36 05:17 12:58 20:41 21:21 22:16 16:44
Mon, 12-May 03:40 04:35 05:15 12:58 20:42 21:23 22:18 16:48
Tue, 13-May 03:38 04:33 05:13 12:58 20:44 21:25 22:20 16:51
Wed, 14-May 03:36 04:31 05:12 12:58 20:45 21:26 22:22 16:55
Thu, 15-May 03:33 04:29 05:10 12:58 20:47 21:28 22:25 16:58
Fri, 16-May 03:31 04:28 05:09 12:58 20:48 21:30 22:27 17:02
Sat, 17-May 03:29 04:26 05:08 12:58 20:50 21:32 22:29 17:05
Sun, 18-May 03:27 04:24 05:06 12:58 20:51 21:33 22:32 17:08
Mon, 19-May 03:24 04:23 05:05 12:58 20:53 21:35 22:34 17:12
Tue, 20-May 03:22 04:21 05:04 12:58 20:54 21:37 22:36 17:15
Wed, 21-May 03:20 04:20 05:02 12:58 20:55 21:38 22:38 17:18
Thu, 22-May 03:18 04:18 05:01 12:58 20:57 21:40 22:40 17:21
Fri, 23-May 03:16 04:17 05:00 12:59 20:58 21:41 22:43 17:24
Sat, 24-May 03:14 04:15 04:59 12:59 20:59 21:43 22:45 17:27
Sun, 25-May 03:12 04:14 04:58 12:59 21:01 21:44 22:47 17:30
Mon, 26-May 03:10 04:13 04:57 12:59 21:02 21:46 22:49 17:33
Tue, 27-May 03:08 04:12 04:56 12:59 21:03 21:47 22:51 17:35
Wed, 28-May 03:07 04:10 04:55 12:59 21:04 21:49 22:53 17:38
Thu, 29-May 03:05 04:09 04:54 12:59 21:06 21:50 22:55 17:41
Fri, 30-May 03:03 04:08 04:53 12:59 21:07 21:52 22:57 17:43
Sat, 31-May 03:01 04:07 04:52 12:59 21:08 21:53 22:59 17:45
Sun, 01-Jun 03:00 04:06 04:51 13:00 21:09 21:54 23:01 17:48
Mon, 02-Jun 02:58 04:05 04:50 13:00 21:10 21:55 23:03 17:50
Tue, 03-Jun 02:57 04:04 04:50 13:00 21:11 21:57 23:04 17:52
Wed, 04-Jun 02:55 04:03 04:49 13:00 21:12 21:58 23:06 17:54
Thu, 05-Jun 02:54 04:03 04:48 13:00 21:13 21:59 23:08 17:56
Fri, 06-Jun 02:53 04:02 04:48 13:01 21:14 22:00 23:09 17:58
Sat, 07-Jun 02:52 04:01 04:47 13:01 21:15 22:01 23:11 17:59
Sun, 08-Jun 02:51 04:00 04:47 13:01 21:15 22:02 23:12 18:01
Mon, 09-Jun 02:50 04:00 04:46 13:01 21:16 22:03 23:14 18:02
Tue, 10-Jun 02:49 03:59 04:46 13:01 21:17 22:04 23:15 18:04
Wed, 11-Jun 02:48 03:59 04:46 13:01 21:18 22:04 23:16 18:05
Thu, 12-Jun 02:47 03:59 04:45 13:02 21:18 22:05 23:17 18:06
Fri, 13-Jun 02:46 03:58 04:45 13:02 21:19 22:06 23:18 18:07
Sat, 14-Jun 02:46 03:58 04:45 13:02 21:19 22:06 23:19 18:08
Sun, 15-Jun 02:45 03:58 04:45 13:02 21:20 22:07 23:20 18:09
Mon, 16-Jun 02:45 03:58 04:45 13:03 21:20 22:08 23:20 18:09
Tue, 17-Jun 02:45 03:58 04:45 13:03 21:21 22:08 23:21 18:10
Wed, 18-Jun 02:45 03:58 04:45 13:03 21:21 22:08 23:22 18:10
Thu, 19-Jun 02:45 03:58 04:45 13:03 21:21 22:09 23:22 18:10
Fri, 20-Jun 02:45 03:58 04:45 13:03 21:22 22:09 23:22 18:11
Sat, 21-Jun 02:45 03:58 04:45 13:04 21:22 22:09 23:22 18:11
Sun, 22-Jun 02:45 03:58 04:46 13:04 21:22 22:09 23:23 18:10
Mon, 23-Jun 02:45 03:59 04:46 13:04 21:22 22:09 23:23 18:10
Tue, 24-Jun 02:46 03:59 04:46 13:04 21:22 22:09 23:22 18:10
Wed, 25-Jun 02:46 03:59 04:47 13:04 21:22 22:09 23:22 18:09
Thu, 26-Jun 02:47 04:00 04:47 13:05 21:22 22:09 23:22 18:09
Fri, 27-Jun 02:48 04:00 04:48 13:05 21:22 22:09 23:21 18:08
Sat, 28-Jun 02:49 04:01 04:48 13:05 21:22 22:09 23:21 18:07
Sun, 29-Jun 02:50 04:02 04:49 13:05 21:22 22:08 23:20 18:06
Mon, 30-Jun 02:51 04:02 04:49 13:06 21:21 22:08 23:19 18:05
Tue, 01-Jul 02:52 04:03 04:50 13:06 21:21 22:08 23:19 18:04
Wed, 02-Jul 02:53 04:04 04:51 13:06 21:21 22:07 23:18 18:03
Thu, 03-Jul 02:54 04:05 04:51 13:06 21:20 22:07 23:17 18:01
Fri, 04-Jul 02:56 04:06 04:52 13:06 21:20 22:06 23:16 18:00
Sat, 05-Jul 02:57 04:07 04:53 13:06 21:19 22:05 23:14 17:58
Sun, 06-Jul 02:59 04:08 04:54 13:07 21:19 22:05 23:13 17:56
Mon, 07-Jul 03:00 04:09 04:55 13:07 21:18 22:04 23:12 17:54
Tue, 08-Jul 03:02 04:10 04:56 13:07 21:17 22:03 23:10 17:52
Wed, 09-Jul 03:04 04:11 04:57 13:07 21:17 22:02 23:09 17:50
Thu, 10-Jul 03:06 04:12 04:58 13:07 21:16 22:01 23:07 17:48
Fri, 11-Jul 03:07 04:14 04:59 13:07 21:15 22:00 23:06 17:46
Sat, 12-Jul 03:09 04:15 05:00 13:07 21:14 21:59 23:04 17:44
Sun, 13-Jul 03:11 04:16 05:01 13:08 21:13 21:58 23:02 17:41
Mon, 14-Jul 03:13 04:18 05:02 13:08 21:13 21:57 23:01 17:39
Tue, 15-Jul 03:15 04:19 05:03 13:08 21:12 21:56 22:59 17:36
Wed, 16-Jul 03:17 04:20 05:05 13:08 21:11 21:54 22:57 17:33
Thu, 17-Jul 03:19 04:22 05:06 13:08 21:09 21:53 22:55 17:31
Fri, 18-Jul 03:21 04:23 05:07 13:08 21:08 21:52 22:53 17:28
Sat, 19-Jul 03:23 04:25 05:08 13:08 21:07 21:50 22:51 17:25
Sun, 20-Jul 03:26 04:26 05:10 13:08 21:06 21:49 22:49 17:22
Mon, 21-Jul 03:28 04:28 05:11 13:08 21:05 21:47 22:47 17:19
Tue, 22-Jul 03:30 04:29 05:12 13:08 21:03 21:46 22:45 17:16
Wed, 23-Jul 03:32 04:31 05:14 13:08 21:02 21:44 22:43 17:13
Thu, 24-Jul 03:34 04:33 05:15 13:08 21:01 21:43 22:41 17:10
Fri, 25-Jul 03:36 04:34 05:16 13:08 20:59 21:41 22:38 17:06
Sat, 26-Jul 03:39 04:36 05:18 13:08 20:58 21:39 22:36 17:03
Sun, 27-Jul 03:41 04:38 05:19 13:08 20:57 21:38 22:34 17:00
Mon, 28-Jul 03:43 04:39 05:21 13:08 20:55 21:36 22:32 16:56
Tue, 29-Jul 03:45 04:41 05:22 13:08 20:54 21:34 22:29 16:53
Wed, 30-Jul 03:48 04:43 05:23 13:08 20:52 21:32 22:27 16:49
Thu, 31-Jul 03:50 04:44 05:25 13:08 20:50 21:31 22:25 16:46
Fri, 01-Aug 03:52 04:46 05:26 13:08 20:49 21:29 22:22 16:42
Sat, 02-Aug 03:54 04:48 05:28 13:08 20:47 21:27 22:20 16:39
Sun, 03-Aug 03:57 04:50 05:29 13:08 20:45 21:25 22:18 16:35
Mon, 04-Aug 03:59 04:51 05:31 13:08 20:44 21:23 22:15 16:31
Tue, 05-Aug 04:01 04:53 05:32 13:08 20:42 21:21 22:13 16:28
Wed, 06-Aug 04:03 04:55 05:34 13:08 20:40 21:19 22:10 16:24
Thu, 07-Aug 04:05 04:57 05:36 13:08 20:38 21:17 22:08 16:20
Fri, 08-Aug 04:08 04:58 05:37 13:07 20:37 21:15 22:05 16:16
Sat, 09-Aug 04:10 05:00 05:39 13:07 20:35 21:13 22:03 16:13
Sun, 10-Aug 04:12 05:02 05:40 13:07 20:33 21:11 22:00 16:09
Mon, 11-Aug 04:14 05:04 05:42 13:07 20:31 21:09 21:58 16:05
Tue, 12-Aug 04:16 05:05 05:43 13:07 20:29 21:07 21:55 16:01
Wed, 13-Aug 04:19 05:07 05:45 13:07 20:27 21:05 21:53 15:57
Thu, 14-Aug 04:21 05:09 05:46 13:06 20:25 21:03 21:50 15:53
Fri, 15-Aug 04:23 05:11 05:48 13:06 20:23 21:00 21:48 15:49
Sat, 16-Aug 04:25 05:12 05:50 13:06 20:21 20:58 21:45 15:45
Sun, 17-Aug 04:27 05:14 05:51 13:06 20:19 20:56 21:43 15:41
Mon, 18-Aug 04:29 05:16 05:53 13:06 20:17 20:54 21:40 15:37
Tue, 19-Aug 04:31 05:18 05:54 13:05 20:15 20:52 21:38 15:33
Wed, 20-Aug 04:33 05:19 05:56 13:05 20:13 20:49 21:35 15:29
Thu, 21-Aug 04:36 05:21 05:58 13:05 20:11 20:47 21:33 15:26
Fri, 22-Aug 04:38 05:23 05:59 13:05 20:09 20:45 21:30 15:22
Sat, 23-Aug 04:40 05:25 06:01 13:04 20:07 20:43 21:27 15:18
Sun, 24-Aug 04:42 05:26 06:02 13:04 20:05 20:40 21:25 15:14
Mon, 25-Aug 04:44 05:28 06:04 13:04 20:03 20:38 21:22 15:10
Tue, 26-Aug 04:46 05:30 06:05 13:03 20:00 20:36 21:20 15:05
Wed, 27-Aug 04:48 05:32 06:07 13:03 19:58 20:34 21:17 15:01
Thu, 28-Aug 04:50 05:33 06:09 13:03 19:56 20:31 21:15 14:57
Fri, 29-Aug 04:52 05:35 06:10 13:03 19:54 20:29 21:12 14:53
Sat, 30-Aug 04:54 05:37 06:12 13:02 19:52 20:27 21:09 14:49

Notes

  • Max Height (solar noon) is when the sun is highest in the sky.
  • Day length is dawn to dusk as there is enough light for walking for at least 30 minutes before sunrise and after sunset, even on an overcast day.
  • At 'Light' (nautical dawn) the horizon becomes visible. At 'Dawn' (civil dawn) there is enough light to read, and drivers can switch their lights off. Finally the sun rises.
  • After sunset, there is still enough light to read until 'Dusk' (civil dusk) or lighting up time for drivers. The horizon is still visible until 'Dark' (nautical dusk).
  • Times will vary if there is a hill on the horizon.

Surrey moonlight

Moonlight chart for walking at night.

Night of Sunset Dusk Moon Visible Dawn Sunrise Phase % Full Max. Ht. Night Walk
Tue, 04-Mar 17:48 18:21 dusk 00:32 06:04 06:38 31 % 16:08
Wed, 05-Mar 17:50 18:23 dusk 02:00 06:02 06:35 42 % 17:05
Thu, 06-Mar 17:51 18:25 dusk 03:17 06:00 06:33 54 % 18:05
Fri, 07-Mar 17:53 18:26 dusk 04:17 05:58 06:31 64 % 19:05
Sat, 08-Mar 17:55 18:28 dusk 04:59 05:56 06:29 74 % 20:04
Sun, 09-Mar 17:56 18:30 dusk 05:27 05:54 06:27 83 % 20:59 after dusk
Mon, 10-Mar 17:58 18:31 dusk 05:47 05:51 06:24 90 % 21:50 after dusk
Tue, 11-Mar 18:00 18:33 dusk dawn 05:49 06:22 95 % 22:36 all night
Wed, 12-Mar 18:02 18:35 dusk dawn 05:47 06:20 98 % 23:19 all night
Thu, 13-Mar 18:03 18:36 dusk dawn 05:45 06:18 100 % 00:00 all night
Fri, 14-Mar 18:05 18:38 dusk dawn 05:42 06:15 100 % 00:40 all night
Sat, 15-Mar 18:07 18:40 19:42 dawn 05:40 06:13 97 % 01:19 before dawn
Sun, 16-Mar 18:08 18:42 20:53 dawn 05:38 06:11 93 % 02:00 before dawn
Mon, 17-Mar 18:10 18:43 22:05 dawn 05:36 06:09 88 % 02:42 before dawn
Tue, 18-Mar 18:12 18:45 23:18 dawn 05:33 06:06 81 % 03:26 before dawn
Wed, 19-Mar 18:13 18:47 00:32 dawn 05:31 06:04 73 % 04:14
Thu, 20-Mar 18:15 18:48 01:43 dawn 05:29 06:02 64 % 05:05
Fri, 21-Mar 18:17 18:50 02:45 dawn 05:26 06:00 55 % 05:58
Sat, 22-Mar 18:19 18:52 03:35 dawn 05:24 05:57 45 % 06:53
Sun, 23-Mar 18:20 18:54 04:12 dawn 05:22 05:55 35 % 07:48
Mon, 24-Mar 18:22 18:55 04:38 dawn 05:19 05:53 25 % 08:43
Tue, 25-Mar 18:24 18:57 04:58 dawn 05:17 05:50 16 % 09:35
Wed, 26-Mar 18:25 18:59 05:14 dawn 05:15 05:48 9 % 10:26
Thu, 27-Mar 18:27 19:00 05:12 05:46 3 % 11:16
Fri, 28-Mar 18:29 19:02 05:10 05:44 0 %
Sat, 29-Mar 18:30 19:04 06:08 06:41 0 % 12:07
Sun, 30-Mar 19:32 20:06 dusk 21:29 06:06 06:39 3 % 14:00
Mon, 31-Mar 19:34 20:07 dusk 23:04 06:03 06:37 9 % 14:55
Tue, 01-Apr 19:35 20:09 dusk 00:38 06:01 06:35 17 % 15:53
Wed, 02-Apr 19:37 20:11 dusk 02:03 05:59 06:32 27 % 16:55
Thu, 03-Apr 19:39 20:13 dusk 03:11 05:56 06:30 38 % 17:57
Fri, 04-Apr 19:40 20:14 dusk 04:00 05:54 06:28 49 % 18:58
Sat, 05-Apr 19:42 20:16 dusk 04:32 05:52 06:26 59 % 19:55
Sun, 06-Apr 19:44 20:18 dusk 04:54 05:49 06:24 69 % 20:47
Mon, 07-Apr 19:45 20:20 dusk 05:10 05:47 06:21 78 % 21:35 after dusk
Tue, 08-Apr 19:47 20:21 dusk 05:23 05:45 06:19 86 % 22:19 after dusk
Wed, 09-Apr 19:48 20:23 dusk 05:33 05:42 06:17 92 % 23:00 after dusk
Thu, 10-Apr 19:50 20:25 dusk dawn 05:40 06:15 96 % 23:39 all night
Fri, 11-Apr 19:52 20:27 dusk dawn 05:38 06:13 99 % 00:18 all night
Sat, 12-Apr 19:53 20:29 dusk dawn 05:35 06:10 100 % 00:58 all night
Sun, 13-Apr 19:55 20:30 20:52 dawn 05:33 06:08 99 % 01:40 before dawn
Mon, 14-Apr 19:57 20:32 22:06 dawn 05:31 06:06 97 % 02:23 before dawn
Tue, 15-Apr 19:58 20:34 23:19 dawn 05:29 06:04 92 % 03:10 before dawn
Wed, 16-Apr 20:00 20:36 00:31 dawn 05:26 06:02 87 % 03:59 before dawn
Thu, 17-Apr 20:02 20:38 01:36 dawn 05:24 06:00 79 % 04:52 before dawn
Fri, 18-Apr 20:03 20:39 02:30 dawn 05:22 05:58 71 % 05:45
Sat, 19-Apr 20:05 20:41 03:11 dawn 05:20 05:56 61 % 06:39
Sun, 20-Apr 20:07 20:43 03:40 dawn 05:17 05:54 51 % 07:32
Mon, 21-Apr 20:08 20:45 04:01 dawn 05:15 05:51 41 % 08:24
Tue, 22-Apr 20:10 20:47 04:18 dawn 05:13 05:49 30 % 09:14
Wed, 23-Apr 20:12 20:48 04:32 dawn 05:11 05:47 20 % 10:03
Thu, 24-Apr 20:13 20:50 04:45 dawn 05:09 05:45 12 % 10:52
Fri, 25-Apr 20:15 20:52 04:58 dawn 05:06 05:43 5 % 11:43
Sat, 26-Apr 20:17 20:54 05:04 05:42 1 %
Sun, 27-Apr 20:18 20:56 05:02 05:40 0 % 12:37
Mon, 28-Apr 20:20 20:58 dusk 22:02 05:00 05:38 2 % 13:35
Tue, 29-Apr 20:22 20:59 dusk 23:35 04:58 05:36 7 % 14:36
Wed, 30-Apr 20:23 21:01 dusk 00:54 04:56 05:34 14 % 15:41
Thu, 01-May 20:25 21:03 dusk 01:53 04:54 05:32 23 % 16:45
Fri, 02-May 20:26 21:05 dusk 02:33 04:52 05:30 33 % 17:46
Sat, 03-May 20:28 21:07 dusk 02:59 04:50 05:28 44 % 18:41
Sun, 04-May 20:30 21:09 dusk 03:17 04:48 05:27 54 % 19:32
Mon, 05-May 20:31 21:10 dusk 03:31 04:46 05:25 64 % 20:17
Tue, 06-May 20:33 21:12 dusk 03:42 04:44 05:23 73 % 20:59
Wed, 07-May 20:34 21:14 dusk 03:52 04:42 05:21 81 % 21:39 after dusk
Thu, 08-May 20:36 21:16 dusk 04:01 04:40 05:20 88 % 22:18 after dusk
Fri, 09-May 20:38 21:18 dusk 04:12 04:38 05:18 93 % 22:58 after dusk
Sat, 10-May 20:39 21:19 dusk 04:24 04:36 05:17 97 % 23:38 after dusk
Sun, 11-May 20:41 21:21 dusk dawn 04:35 05:15 99 % 00:21 all night
Mon, 12-May 20:42 21:23 dusk dawn 04:33 05:13 100 % 01:07 all night
Tue, 13-May 20:44 21:25 22:21 dawn 04:31 05:12 98 % 01:56 before dawn
Wed, 14-May 20:45 21:26 23:28 dawn 04:29 05:10 95 % 02:48 before dawn
Thu, 15-May 20:47 21:28 00:26 dawn 04:28 05:09 90 % 03:41 before dawn
Fri, 16-May 20:48 21:30 01:10 dawn 04:26 05:08 84 % 04:35 before dawn
Sat, 17-May 20:50 21:32 01:42 dawn 04:24 05:06 76 % 05:28 before dawn
Sun, 18-May 20:51 21:33 02:06 dawn 04:23 05:05 66 % 06:18
Mon, 19-May 20:53 21:35 02:23 dawn 04:21 05:04 56 % 07:07
Tue, 20-May 20:54 21:37 02:38 dawn 04:20 05:02 45 % 07:55
Wed, 21-May 20:55 21:38 02:50 dawn 04:18 05:01 34 % 08:42
Thu, 22-May 20:57 21:40 03:03 dawn 04:17 05:00 24 % 09:30
Fri, 23-May 20:58 21:41 03:16 dawn 04:15 04:59 14 % 10:21
Sat, 24-May 20:59 21:43 03:33 dawn 04:14 04:58 7 % 11:16
Sun, 25-May 21:01 21:44 04:13 04:57 2 %
Mon, 26-May 21:02 21:46 04:12 04:56 0 % 12:15
Tue, 27-May 21:03 21:47 dusk 22:27 04:10 04:55 1 % 13:19
Wed, 28-May 21:04 21:49 dusk 23:37 04:09 04:54 5 % 14:25
Thu, 29-May 21:06 21:50 dusk 00:27 04:08 04:53 11 % 15:29
Fri, 30-May 21:07 21:52 dusk 00:59 04:07 04:52 19 % 16:29
Sat, 31-May 21:08 21:53 dusk 01:21 04:06 04:51 28 % 17:23
Sun, 01-Jun 21:09 21:54 dusk 01:37 04:05 04:50 38 % 18:12
Mon, 02-Jun 21:10 21:55 dusk 01:49 04:04 04:50 48 % 18:56
Tue, 03-Jun 21:11 21:57 dusk 02:00 04:03 04:49 58 % 19:37
Wed, 04-Jun 21:12 21:58 dusk 02:09 04:03 04:48 67 % 20:17
Thu, 05-Jun 21:13 21:59 dusk 02:19 04:02 04:48 76 % 20:56 after dusk
Fri, 06-Jun 21:14 22:00 dusk 02:31 04:01 04:47 83 % 21:37 after dusk
Sat, 07-Jun 21:15 22:01 dusk 02:45 04:00 04:47 90 % 22:19 after dusk
Sun, 08-Jun 21:15 22:02 dusk 03:03 04:00 04:46 95 % 23:03 after dusk
Mon, 09-Jun 21:16 22:03 dusk 03:28 03:59 04:46 98 % 23:52 after dusk
Tue, 10-Jun 21:17 22:04 dusk dawn 03:59 04:46 100 % 00:43 all night
Wed, 11-Jun 21:18 22:04 22:20 dawn 03:59 04:45 99 % 01:36 before dawn
Thu, 12-Jun 21:18 22:05 23:09 dawn 03:58 04:45 97 % 02:31 before dawn
Fri, 13-Jun 21:19 22:06 23:45 dawn 03:58 04:45 93 % 03:24 before dawn
Sat, 14-Jun 21:19 22:06 00:10 dawn 03:58 04:45 87 % 04:16 before dawn
Sun, 15-Jun 21:20 22:07 00:29 dawn 03:58 04:45 79 % 05:05 before dawn
Mon, 16-Jun 21:20 22:08 00:44 dawn 03:58 04:45 70 % 05:52
Tue, 17-Jun 21:21 22:08 00:57 dawn 03:58 04:45 60 % 06:38
Wed, 18-Jun 21:21 22:08 01:09 dawn 03:58 04:45 48 % 07:25
Thu, 19-Jun 21:21 22:09 01:22 dawn 03:58 04:45 37 % 08:13
Fri, 20-Jun 21:22 22:09 01:36 dawn 03:58 04:45 26 % 09:04
Sat, 21-Jun 21:22 22:09 01:55 dawn 03:58 04:46 17 % 10:00
Sun, 22-Jun 21:22 22:09 02:21 dawn 03:59 04:46 9 % 11:00
Mon, 23-Jun 21:22 22:09 03:59 04:46 3 %
Tue, 24-Jun 21:22 22:09 03:57 dawn 03:59 04:47 1 % 12:04
Wed, 25-Jun 21:22 22:09 dusk 22:16 04:00 04:47 1 % 13:09
Thu, 26-Jun 21:22 22:09 dusk 22:56 04:00 04:48 3 % 14:12
Fri, 27-Jun 21:22 22:09 dusk 23:22 04:01 04:48 8 % 15:10
Sat, 28-Jun 21:22 22:09 dusk 23:41 04:02 04:49 15 % 16:02
Sun, 29-Jun 21:22 22:08 dusk 23:55 04:02 04:49 23 % 16:49
Mon, 30-Jun 21:21 22:08 dusk 00:06 04:03 04:50 32 % 17:32
Tue, 01-Jul 21:21 22:08 dusk 00:16 04:04 04:51 42 % 18:13
Wed, 02-Jul 21:21 22:07 dusk 00:26 04:05 04:51 52 % 18:53
Thu, 03-Jul 21:20 22:07 dusk 00:37 04:06 04:52 61 % 19:33
Fri, 04-Jul 21:20 22:06 dusk 00:50 04:07 04:53 70 % 20:15
Sat, 05-Jul 21:19 22:05 dusk 01:07 04:08 04:54 78 % 20:59 after dusk
Sun, 06-Jul 21:19 22:05 dusk 01:29 04:09 04:55 85 % 21:45 after dusk
Mon, 07-Jul 21:18 22:04 dusk 02:00 04:10 04:56 92 % 22:36 after dusk
Tue, 08-Jul 21:17 22:03 dusk 02:45 04:11 04:57 96 % 23:29 after dusk
Wed, 09-Jul 21:17 22:02 dusk 03:44 04:12 04:58 99 % 00:23 after dusk
Thu, 10-Jul 21:16 22:01 dusk dawn 04:14 04:59 100 % 01:18 all night
Fri, 11-Jul 21:15 22:00 22:14 dawn 04:15 05:00 99 % 02:11 before dawn
Sat, 12-Jul 21:14 21:59 22:35 dawn 04:16 05:01 95 % 03:02 before dawn
Sun, 13-Jul 21:13 21:58 22:51 dawn 04:18 05:02 90 % 03:50 before dawn
Mon, 14-Jul 21:13 21:57 23:05 dawn 04:19 05:03 82 % 04:37 before dawn
Tue, 15-Jul 21:12 21:56 23:17 dawn 04:20 05:05 73 % 05:23
Wed, 16-Jul 21:11 21:54 23:29 dawn 04:22 05:06 62 % 06:10
Thu, 17-Jul 21:09 21:53 23:42 dawn 04:23 05:07 51 % 06:59
Fri, 18-Jul 21:08 21:52 23:59 dawn 04:25 05:08 39 % 07:52
Sat, 19-Jul 21:07 21:50 00:21 dawn 04:26 05:10 29 % 08:49
Sun, 20-Jul 21:06 21:49 00:54 dawn 04:28 05:11 19 % 09:50
Mon, 21-Jul 21:05 21:47 01:42 dawn 04:29 05:12 11 % 10:53
Tue, 22-Jul 21:03 21:46 02:48 dawn 04:31 05:14 5 % 11:56
Wed, 23-Jul 21:02 21:44 04:33 05:15 1 %
Thu, 24-Jul 21:01 21:43 04:34 05:16 0 % 12:56
Fri, 25-Jul 20:59 21:41 dusk 21:44 04:36 05:18 2 % 13:50
Sat, 26-Jul 20:58 21:39 dusk 22:00 04:38 05:19 5 % 14:40
Sun, 27-Jul 20:57 21:38 dusk 22:12 04:39 05:21 11 % 15:25
Mon, 28-Jul 20:55 21:36 dusk 22:23 04:41 05:22 18 % 16:07
Tue, 29-Jul 20:54 21:34 dusk 22:33 04:43 05:23 26 % 16:48
Wed, 30-Jul 20:52 21:32 dusk 22:43 04:44 05:25 35 % 17:29
Thu, 31-Jul 20:50 21:31 dusk 22:55 04:46 05:26 45 % 18:10
Fri, 01-Aug 20:49 21:29 dusk 23:10 04:48 05:28 54 % 18:53
Sat, 02-Aug 20:47 21:27 dusk 23:30 04:50 05:29 64 % 19:38
Sun, 03-Aug 20:45 21:25 dusk 23:57 04:51 05:31 72 % 20:27
Mon, 04-Aug 20:44 21:23 dusk 00:36 04:53 05:32 81 % 21:19 after dusk
Tue, 05-Aug 20:42 21:21 dusk 01:29 04:55 05:34 88 % 22:13 after dusk
Wed, 06-Aug 20:40 21:19 dusk 02:37 04:57 05:36 94 % 23:08 after dusk
Thu, 07-Aug 20:38 21:17 dusk 03:56 04:58 05:37 98 % 00:02 after dusk
Fri, 08-Aug 20:37 21:15 dusk dawn 05:00 05:39 100 % 00:54 all night
Sat, 09-Aug 20:35 21:13 dusk dawn 05:02 05:40 99 % 01:44 all night
Sun, 10-Aug 20:33 21:11 21:12 dawn 05:04 05:42 97 % 02:33 before dawn
Mon, 11-Aug 20:31 21:09 21:25 dawn 05:05 05:43 92 % 03:20 before dawn
Tue, 12-Aug 20:29 21:07 21:37 dawn 05:07 05:45 84 % 04:07 before dawn
Wed, 13-Aug 20:27 21:05 21:50 dawn 05:09 05:46 75 % 04:56 before dawn
Thu, 14-Aug 20:25 21:03 22:05 dawn 05:11 05:48 64 % 05:48
Fri, 15-Aug 20:23 21:00 22:25 dawn 05:12 05:50 53 % 06:43
Sat, 16-Aug 20:21 20:58 22:54 dawn 05:14 05:51 42 % 07:42
Sun, 17-Aug 20:19 20:56 23:35 dawn 05:16 05:53 31 % 08:44
Mon, 18-Aug 20:17 20:54 00:34 dawn 05:18 05:54 21 % 09:46
Tue, 19-Aug 20:15 20:52 01:48 dawn 05:19 05:56 12 % 10:45
Wed, 20-Aug 20:13 20:49 03:12 dawn 05:21 05:58 6 % 11:41
Thu, 21-Aug 20:11 20:47 05:23 05:59 2 %
Fri, 22-Aug 20:09 20:45 05:25 06:01 0 % 12:32
Sat, 23-Aug 20:07 20:43 05:26 06:02 1 % 13:18
Sun, 24-Aug 20:05 20:40 05:28 06:04 3 % 14:02
Mon, 25-Aug 20:03 20:38 dusk 20:40 05:30 06:05 7 % 14:43
Tue, 26-Aug 20:00 20:36 dusk 20:51 05:32 06:07 13 % 15:24
Wed, 27-Aug 19:58 20:34 dusk 21:02 05:33 06:09 21 % 16:05
Thu, 28-Aug 19:56 20:31 dusk 21:15 05:35 06:10 29 % 16:47
Fri, 29-Aug 19:54 20:29 dusk 21:32 05:37 06:12 38 % 17:31
Sat, 30-Aug 19:52 20:27 dusk 21:56 05:38 06:13 47 % 18:19

Notes

  • The percentage of the moon which is illuminated doesn't vary much with location.
  • A full moon is not just bigger, it is much brighter. A quarter moon (1/2 disk visible) give less than 5% of the illumination of a full moon. You can walk with a quarter moon if its high in the sky (after dusk for a growing moon, before dawn for a shrinking moon).
  • Sky glow (light reflected by air or clouds) from nearby cities, and especially snow on the ground also effect light levels.
  • Times will vary a few minutes, as (i) these figures are for the centre of the county the walk is in, (ii) if there are hills on the horizon, and (iii) if you are on a hill
  • Sunlight is ~ 1,000,000 times brighter than moonlight.
  • Of course, you need a cloudless night as well!

Surrey weather (Accuweather)

Now would be a good time for a cup of tea.