December weather forecast
Four Cabot, Guernsey

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December

Weather in December

The weather in December reaches its sourest point, with high rainfall of 70mm (2.76") and the lowest daylight hours of the year. The reduction in rainfall from November's high 87mm (3.43") is marginal, still marking December as one of the wettest months. The winter firmly establishes its hold, making the temperatures severely cold, which is not helped by the brisk winds sweeping the city. The days are shorter and the overall weather announces the arrival of the new year with low temperature and heavy precipitation. With the New Year, January will carry over the same weather trends, with cold temperatures, shorter daylight hours and heavy precipitation.

Temperature

December notes an average high-temperature of a fresh 11.1°C (52°F), subtly differing from November's 13°C (55.4°F). December sees a slight dip to an average low temperature of 9.2°C (48.6°F) from the daytime highs.

Humidity

November and December, with an average relative humidity of 77%, are the least humid months in Four Cabot.

Rainfall

In Four Cabot, in December, during 21.4 rainfall days, 70mm (2.76") of precipitation is typically accumulated. Throughout the year, there are 196.3 rainfall days, and 557mm (21.93") of precipitation is accumulated.

Snowfall

In Four Cabot, snow does not fall in February through December.

Daylight

The month with the shortest days is December, with an average of 8h and 12min of daylight.
On the first day of the month, sunrise is at 07:45 and sunset at 16:13. On the last day of December, in Four Cabot, sunrise is at 08:06 and sunset at 16:20 GMT.

Sunshine

January, November and December, with an average of 3.9h of sunshine, are months with the least sunshine in Four Cabot.

UV index

In Four Cabot, the average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 3 during December morphs into the following directions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Updated: Feb 9, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average December temperature in Four Cabot?
In Four Cabot, in December, the average high-temperature is 11.1°C (52°F), and the average low-temperature is 9.2°C (48.6°F).
What are the least humid months in Four Cabot?
The months with the lowest humidity in Four Cabot are November and December, with an average relative humidity of 77%.
What is the average humidity in December in Four Cabot?
The average relative humidity in December in Four Cabot is 77%.
How many days does it rain in December in Four Cabot?
In Four Cabot, Guernsey, in December, it is raining for 21.4 days, with typically 70mm (2.76") of accumulated precipitation.
When it does not snow in Four Cabot?
In Four Cabot, Guernsey, snow does not fall in February through December.
Does it snow in Four Cabot in December?
In Four Cabot, in December, it doesn't snow. In January, it regularly snows.
What is the month with the shortest days in Four Cabot?
The month with the shortest days is December, with an average of 8h and 12min of daylight.
What is the average length of the day in December in Four Cabot?
In Four Cabot, the average day length in December is 8h and 15min.
When are sunrise and sunset in December in Four Cabot?
In December, on the first day of the month, sunrise is at 07:45 and sunset at 16:13. On the last day of the month, in Four Cabot, Guernsey, sunrise is at 08:06 and sunset at 16:20 GMT.
What are the months with the least sunshine in Four Cabot?
January, November and December, with an average of 3.9h of sunshine, are months with the least sunshine.
How many hours of sunshine does Four Cabot have in December?
The average sunshine duration in December in Four Cabot, Guernsey, is 3.9h.
What is the UV index reading in December in Four Cabot?
The average daily maximum UV index in December in Four Cabot is 3. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMAMJJASONDecember
Nov
December
Jan
Average high temperature
13°C
11.1°C
9.8°C
Average low temperature
10.9°C
9.2°C
7.8°C
Average pressure
1011.5mbar
1016.5mbar
1016.1mbar
Average wind speed
34.8km/h
36km/h
34.1km/h
Average max. wind speed
36.8km/h
37.8km/h
35.8km/h
Average wind speed gusts
47.9km/h
49.8km/h
47.7km/h
Average humidity
77%
77%
78%
Average rainfall
87mm
70mm
63mm
Average rainfall days
22.8
21.4
22
Average snowfall
0mm
0mm
2mm
Average snowfall days
0
0
0.3
Average daylight
9h 1min
8h 1min
8h 4min
Average sunshine
3h 5min
3h 5min
3h 5min
Average sunshine days
4
5.3
5.5
Average UV index
3
3
3
Average cloud cover
63%
63%
62%
Average visibility
10km
10km
10km
Average temperature in December
Four Cabot, Guernsey
  • Average high temperature in December: 11.1°C

The warmest month (with the highest average high temperature) is August (17.8°C).
The month with the lowest average high temperature is February (9.2°C).

  • Average low temperature in December: 9.2°C

The month with the highest average low temperature is August (15.8°C).
The coldest month (with the lowest average low temperature) is February (7°C).

Average pressure in December
Four Cabot, Guernsey
  • Average pressure in December: 1016.5mbar

The month with the highest atmospheric pressure is September (1017.9mbar).
The month with the lowest atmospheric pressure is November (1011.5mbar).

Average wind speed in December
Four Cabot, Guernsey
  • Average wind speed in December: 36km/h

The windiest month (with the highest average wind speed) is December (36km/h).
The calmest month (with the lowest average wind speed) is July (21.9km/h).

Average humidity in December
Four Cabot, Guernsey
  • Average humidity in December: 77%

The months with the highest relative humidity are June and July (84%).
The months with the lowest relative humidity are November and December (77%).

Average rainfall in December
Four Cabot, Guernsey
  • Average rainfall in December: 70mm

The wettest month (with the highest rainfall) is November (87mm).
The driest month (with the least rainfall) is July (26mm).

Average rainfall days in December
Four Cabot, Guernsey
  • Average rainfall days in December: 21.4 days

The month with the highest number of rainy days is November (22.8 days).
The month with the least rainy days is June (11.5 days).

Average snowfall in December
Four Cabot, Guernsey
  • Average snowfall in December: 0mm

The month with the highest snowfall is January (2mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in December
Four Cabot, Guernsey
  • Average snowfall days in December: 0 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in December /
Average sunshine in December
Four Cabot, Guernsey
  • Average daylight in December: 8h and 1min

The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).

  • Average sunshine in December: 3h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January, November and December (Average sunshine: 3h and 54min).

Average sunshine days in December
Four Cabot, Guernsey
  • Average sunshine days in December: 5.3 days

The month with the most sunshine days is May (16.3 days).
The month with the least sunshine days is November (4 days).

Average UV index in December
Four Cabot, Guernsey
  • Average UV index in December: 3

The months with the highest UV index are July, August and September (UV index 5).
The month with the lowest UV index is February (UV index 2).

Average cloud cover in December
Four Cabot, Guernsey
  • Average cloud cover in December: 63

The months with the most cloud cover are November and December (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 37).

Average visibility in December
Four Cabot, Guernsey
  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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