Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December's presence marks an average high-temperature of a chilly 9.2°C (48.6°F), subtly varied from November's 11.2°C (52.2°F). Maintaining close parity with daytime warmth, the average nocturnal temperature during December stays at a wintry 5.9°C (42.6°F).Humidity
January and December, with an average relative humidity of 85%, are the most humid months.Rainfall
The wettest months are November and December, with an average 59mm (2.32") of rainfall.Snowfall
Months with snowfall in Lewes are January through April, November and December. In Lewes, in December, during 0.9 snowfall days, 5mm (0.2") of snow is typically accumulated. Throughout the year, there are 5.4 snowfall days, and 23mm (0.91") of snow is accumulated.Daylight
The month with the shortest days in Lewes is December, with an average of 8h and 0min of daylight.On the first day of December, sunrise is at 7:41 am and sunset at 3:57 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 4:03 pm GMT.
Sunshine
In Lewes, the average sunshine in December is 4.4h.UV index
In Lewes, United Kingdom, the average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 3 during December translates into these guidelines:
Take necessary precautions - Suggestions to elude sunburn are provided. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Frequently asked questions
What is the average December temperature in Lewes?
What are the most humid months in Lewes?
What is the average humidity in December in Lewes?
What is the wettest month in Lewes?
How much does it rain in Lewes in December?
How much does it snow in Lewes in December?
What is the month with the shortest days in Lewes?
What is the average length of the day in December in Lewes?
When is the sunrise / sunset in December in Lewes?
How many hours of sunshine does Lewes have in December?
How high is the UV index in December in Lewes?
Average temperature in December
Lewes, United Kingdom
- Average high temperature in December: 9.2°C
The warmest month (with the highest average high temperature) is August (19.7°C).
The months with the lowest average high temperature are January and February (7.5°C).
- Average low temperature in December: 5.9°C
The month with the highest average low temperature is August (14.5°C).
The coldest month (with the lowest average low temperature) is February (4.2°C).
Average pressure in December
Lewes, United Kingdom
- Average pressure in December: 1015.3mbar
The month with the highest atmospheric pressure is September (1017.3mbar).
The month with the lowest atmospheric pressure is November (1011mbar).
Average wind speed in December
Lewes, United Kingdom
- Average wind speed in December: 24.6km/h
The windiest month (with the highest average wind speed) is December (24.6km/h).
The calmest month (with the lowest average wind speed) is July (16.8km/h).
Average humidity in December
Lewes, United Kingdom
- Average humidity in December: 85%
The months with the highest relative humidity are January and December (85%).
The months with the lowest relative humidity are August and September (79%).
Average rainfall in December
Lewes, United Kingdom
- Average rainfall in December: 59mm
The wettest months (with the highest rainfall) are November and December (59mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in December
Lewes, United Kingdom
- Average rainfall days in December: 17.2 days
The month with the highest number of rainy days is November (18.5 days).
The month with the least rainy days is September (12.8 days).
Average snowfall in December
Lewes, United Kingdom
- Average snowfall in December: 5mm
The month with the highest snowfall is January (8mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Lewes, United Kingdom
- Average snowfall days in December: 0.9 days
The months with the highest number of snowfall days are January and February (1.7 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
Lewes, United Kingdom
- Average daylight in December: 8h and 0min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in December
Lewes, United Kingdom
- Average sunshine days in December: 9.8 days
The month with the most sunshine days is September (14.1 days).
The month with the least sunshine days is November (8.2 days).
Average UV index in December
Lewes, United Kingdom
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February and November (UV index 2).
Average cloud cover in December
Lewes, United Kingdom
- Average cloud cover in December: 57
The month with the most cloud cover is February (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 40).
Average visibility in December
Lewes, United Kingdom
- Average visibility in December: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January and December (9km).
Lewes, United Kingdom
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