Huntingdon Circular Walk

Cambridgeshire hourly weather (Open Meteo)

Sunset: 15:53. Dusk: 16:34. Dark: 17:18. Moon 9% (06:14 to dawn)

Updated: Fri, 27-Dec at 17:36

	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21
Today												🌫 0%	🌫 0%	0%	🌫 0%	🌫 0%
Sat, 28 Dec	🌫 0%	0%	0%	0%	🌫 0%	🌫 0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
Sun, 29 Dec	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
Mon, 30 Dec	0%	1%	2%	3%	0%	0%	0%	0%	1%	1%	2%	2%	3%	4%	5%	6%
Tue, 31 Dec	0%	3%	7%	13%	18%	24%	28%	32%	35%	38%	40%	42%	43%	42%	41%	38%
Wed, 01 Jan	48%	51%	55%	59%	63%	66%	68%	69%	70%	71%	71%	71%	70%	70%	69%	68%
Thu, 02 Jan	44%	40%	36%	32%	29%	26%	23%	21%	19%	17%	15%	13%	12%	10%	9%	8%
Fri, 03 Jan	3%	3%	3%	3%	3%	3%	3%	3%	3%	3%	3%	4%	4%	4%	4%	5%
Sat, 04 Jan	13%	14%	15%	16%	18%	21%	23%	26%	28%	29%	26%	20%	16%	15%	16%	16%
Sun, 05 Jan	29%	29%	28%	26%	24%	21%	19%	19%	19%	19%	18%	17%	16%	15%	14%	13%
Mon, 06 Jan	16%	16%	16%	18%	19%	19%	19%	18%	17%	15%	13%	11%	10%	9%	8%	8%
Tue, 07 Jan	26%	26%	24%	22%	20%	18%	16%	15%	14%	14%	14%	13%	13%	12%	12%	11%
Wed, 08 Jan	10%	10%	10%	10%	10%	10%	10%	10%	11%	11%	12%	12%	13%	14%	15%	16%
Thu, 09 Jan	16%	15%	14%	13%	12%	11%	10%	9%	9%	9%	9%	10%	🌫 10%	🌫 10%	🌫 11%	🌫 11%
Fri, 10 Jan	16%	17%	19%	20%	21%	22%	23%	24%	24%	24%	24%	24%	23%	22%	20%	19%
Sat, 11 Jan	19%	19%	19%	18%	17%	17%	16%	15%	14%	13%	12%	11%	10%	10%	10%	11%

Percentages are the chance of rain.

Weather data by Open-Meteo

Cambridgeshire hourly weather (Met Office)

Sunset: 15:53. Dusk: 16:34. Dark: 17:18. Moon 9% (06:14 to dawn)

Updated: Fri, 27-Dec at 17:00

	06	09	12	15	18	21
Today					18%	🌫 19%
Sat, 28 Dec	🌫 20%	13%	12%	11%	14%	12%
Sun, 29 Dec	9%	5%	1%	1%	5%	5%
Mon, 30 Dec	8%	5%	8%	8%	9%	10%
Tue, 31 Dec	7%	10%	9%	9%	12%	19%
Wed, 01 Jan	15%	17%	25%	80%	78%	60%
Thu, 02 Jan	15%	21%	41%	15%	10%	7%
Fri, 03 Jan	34%	13%	3%	3%

Percentages are the chance of rain.

Weather data by Met Office

Regional weather (Met Office)

Sunset: 15:53. Dusk: 16:34. Dark: 17:18. Moon 9% (06:14 to dawn)

Updated: Fri, 27-Dec at 17:38

East England

Staying rather murky and drizzly. Mist and fog forming overnight.

• Remaining widely overcast with further patchy drizzle
• Areas of mist and fog readily reforming this evening becoming widespread once more
• Winds remaining light
• Temperatures falling away should clearer skies persist
• Minimum Temperature 2C

Saturday:

• Another dull and cloudy day with patchy drizzle, and mist and fog slowly clearing
• A band of cloud moves southwards overnight, perhaps bringing some patchy light rain
• Maximum Temperature 6C

Outlook for Sunday to Tuesday:

• Early cloud clearing to sunny spells Sunday
• Windier Monday with variable cloud and a few brighter spells
• Increasingly cloudy and windy Tuesday with patchy rain and drizzle turning persistent overnight

UK Day 6-7 and week 2

• The first of January will see any rain across the UK eventually clearing southeast, followed by cold air as a northerly wind develops
• Showers of rain and sleet will turn increasingly to snow, especially across the north
• This cold, showery northerly may persist for a few days before high pressure builds from the west, bringing a period of more settled weather
• Although it will feel cold at first, temperatures will gradually recover to nearer average for the time of year, perhaps even mild
• Beyond this, a fairly changeable picture is most likely although confidence in details is, as usual at this range, very low
• Wettest and windiest weather in the north and west, whilst the south and east will probably remain more settled overall

UK Week 3 and 4

• A few sleet or snow showers are possible at first, mainly across eastern parts of England and Scotland
• Any showers will ease as high pressure builds across the UK from the west
• This will bring generally settled conditions, and variable cloud amounts could lead to frost and fog developing where skies clear at night, potentially lingering for much of the day in some places
• High pressure may continue to hold on across the south through most of January, but showers are still possible around southern and eastern coasts if the wind is from offshore
• Further north and west it is possible that strong wind, rain and snow may return if unsettled conditions in the Atlantic start to make inroads towards the UK

Weather data by Met Office

Cambridgeshire Air Quality (Pollen and UV)

Updated: Fri, 27-Dec at 17:36

Key : Low Medium High Very High

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

Cambridgeshire Visibility

Updated: Fri, 27-Dec at 17:36

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

Cambridgeshire daylight

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.

Cambridgeshire moonlight

Moonlight chart for walking at night.

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!

Cambridgeshire weather (Accuweather)