December weather forecastClapham, United Kingdom
December weather for Clapham, United Kingdom: The first month of the winter, December, is also a frosty month in Clapham, United Kingdom, with an average temperature ranging between min 3.5°C (38.3°F) and max 7.8°C (46°F). In Clapham, United Kingdom, in December, snow falls for 1.5 days, with typically accumulated 9mm (0.35") of snow.
December
Weather in December
The first month of the winter, December, is also a frosty month in Clapham, United Kingdom, with an average temperature ranging between min 3.5°C (38.3°F) and max 7.8°C (46°F).Temperature
December experiences an average high-temperature of a chilly 7.8°C (46°F), barely different from November's 10.4°C (50.7°F). Nighttime readings during December register a minimal drop from daytime highs, averaging at an icy 3.5°C (38.3°F).Humidity
December is the most humid month in Clapham, with an average relative humidity of 88%.Rainfall
The months with the most rainfall are June and December, with an average 40mm (1.57") of precipitation.Snowfall
January through April, November and December are months with snowfall in Clapham. In Clapham, in December, snow falls for 1.5 days, with typically accumulated 9mm (0.35") of snow. Throughout the year, there are 7.6 snowfall days, and 44mm (1.73") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 7h and 54min of daylight.On the first day of the month, sunrise is at 7:44 am and sunset at 3:55 pm. On the last day of December, sunrise is at 8:05 am and sunset at 4:01 pm GMT.
Sunshine
In December, the average sunshine in Clapham is 4.2h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index, 2 during December, leads to the following recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Clapham, United Kingdom
- Average high temperature in December: 7.8°C
The warmest month (with the highest average high temperature) is July (22.3°C).
The month with the lowest average high temperature is January (6.8°C).
- Average low temperature in December: 3.5°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (2.2°C).
Average pressure in December
Clapham, United Kingdom
- Average pressure in December: 1014.5mbar
The month with the highest atmospheric pressure is September (1016.9mbar).
The month with the lowest atmospheric pressure is November (1010.6mbar).
Average wind speed in December
Clapham, United Kingdom
- Average wind speed in December: 16.9km/h
The windiest month (with the highest average wind speed) is February (17.3km/h).
The calmest month (with the lowest average wind speed) is September (12.6km/h).
Average humidity in December
Clapham, United Kingdom
- Average humidity in December: 88%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (72%).
Average rainfall in December
Clapham, United Kingdom
- Average rainfall in December: 40mm
The wettest months (with the highest rainfall) are June and December (40mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in December
Clapham, United Kingdom
- Average rainfall days in December: 12.8 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (11.5 days).
Average snowfall in December
Clapham, United Kingdom
- Average snowfall in December: 9mm
The month with the highest snowfall is February (15mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Clapham, United Kingdom
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Clapham, United Kingdom
- Average daylight in December: 7h and 54min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in December: 4h and 12min
The month with the most sunshine is August (Average sunshine: 7h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in December
Clapham, United Kingdom
- Average sunshine days in December: 15.7 days
The month with the most sunshine days is October (15.9 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in December
Clapham, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Clapham, United Kingdom
- Average cloud cover in December: 59
The months with the most cloud cover are February and November (Cloud cover 61).
The months with the least cloud cover are April, August and September (Cloud cover 50).
Average visibility in December
Clapham, United Kingdom
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
The month with the lowest visibility is November (8km).
