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 sea temperature 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 arrival registers an average high-temperature of a chilly 8.7°C (47.7°F), closely aligning with the temperature of the previous month. A modest decline from daytime high temperatures is noticed in December, marking the average low at a cold 4.8°C (40.6°F).Humidity
January and December, with an average relative humidity of 87%, are the most humid months in Southampton.Rainfall
The month with the most rainfall in Southampton is December, when the rain falls for 16.7 days and typically aggregates up to 61mm (2.4") of precipitation.Snowfall
January through March, November and December are months with snowfall in Southampton. December is the month with the most snowfall in Southampton. Snow falls for 1.1 days and accumulates 8mm (0.31") of snow.Sea temperature
In Southampton, United Kingdom, the average seawater temperature in December is 11.8°C (53.2°F).Note: With the appropriate swimsuit, one can swim in 11.8°C (53.2°F) even if temperatures dip below 10°C (50°F); otherwise, be ready for cold shock and breath issues. A fleeting swim around 13°C (55.4°F) is distressing.
Daylight
With an average of 8h and 0min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:46 am and sunset at 4:02 pm. On the last day of December, in Southampton, sunrise is at 8:08 am and sunset at 4:09 pm GMT.
Sunshine
In December, the average sunshine in Southampton, United Kingdom, is 4.3h.UV index
In Southampton, the average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the average maximum UV index of 3 translates into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Frequently asked questions
What is the temperature in December in Southampton?
What are the most humid months in Southampton?
What is the average humidity in December in Southampton?
What is the rainiest month in Southampton?
How many days does it rain in December in Southampton?
What is the snowiest month in Southampton?
How many days does it snow in December in Southampton?
What is the water temperature in December in Southampton?
What is the month with the shortest days in Southampton?
What is the average length of the day in December in Southampton?
What time are sunrise and sunset in December in Southampton?
How long on average sun shines in December in Southampton?
How high is the UV index in December in Southampton?
Average temperature in December
Southampton, United Kingdom
- Average high temperature in December: 8.7°C
The warmest month (with the highest average high temperature) is July (20.7°C).
The month with the lowest average high temperature is January (7.4°C).
- Average low temperature in December: 4.8°C
The month with the highest average low temperature is August (13.3°C).
The coldest months (with the lowest average low temperature) are January and February (3.3°C).
Average pressure in December
Southampton, United Kingdom
- Average pressure in December: 1015mbar
The month with the highest atmospheric pressure is September (1017.2mbar).
The month with the lowest atmospheric pressure is November (1010.7mbar).
Average wind speed in December
Southampton, United Kingdom
- Average wind speed in December: 19.2km/h
The windiest month (with the highest average wind speed) is February (19.3km/h).
The calmest month (with the lowest average wind speed) is July (14km/h).
Average humidity in December
Southampton, United Kingdom
- Average humidity in December: 87%
The months with the highest relative humidity are January and December (87%).
The months with the lowest relative humidity are July and August (79%).
Average rainfall in December
Southampton, United Kingdom
- Average rainfall in December: 61mm
The wettest month (with the highest rainfall) is December (61mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in December
Southampton, United Kingdom
- Average rainfall days in December: 16.7 days
The month with the highest number of rainy days is November (17.5 days).
The month with the least rainy days is September (12.3 days).
Average snowfall in December
Southampton, United Kingdom
- Average snowfall in December: 8mm
The month with the highest snowfall is December (8mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Southampton, United Kingdom
- Average snowfall days in December: 1.1 days
The month with the highest number of snowfall days is January (1.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in December
Southampton, United Kingdom
- Average sea temperature in December: 11.8°C
The best month for swimming (with the highest average sea temperature) is September (17.3°C).
The coldest month (with the lowest average sea temperature) is March (8.6°C).
Average daylight in December /
Average sunshine in December
Southampton, 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: 8h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in December
Southampton, United Kingdom
- Average sunshine days in December: 10.1 days
The month with the most sunshine days is March (14 days).
The month with the least sunshine days is November (8.9 days).
Average UV index in December
Southampton, 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
Southampton, United Kingdom
- Average cloud cover in December: 58
The month with the most cloud cover is November (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 44).
Average visibility in December
Southampton, United Kingdom
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Southampton, United Kingdom
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