December weather forecast
Brighton, United Kingdom

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Brown sandy shores of Brighton Beach in the United Kingdom, with a background view of the city buildings
Brown sandy shores of Brighton Beach in the United Kingdom, with a background view of the city buildings

Weather in December

Finally, December welcomes the onset of winter with frosty temperatures. Snowfall becomes a common occurrence, albeit with only 5mm (0.2") of snow over 0.9 days. The cold penetrates the sea as well, bringing down its temperature significantly. The lesser amount of daylight hours and cold winds make outdoor activities less inviting. In December, Brighton, United Kingdom is transformed into a winter wonderland, closing the year with wintry charm.

Temperature

With December's arrival, Brighton's weather records an average high-temperature of a frosty 9.2°C (48.6°F), marking little difference from November's 11.2°C (52.2°F). The low temperature average during December reflects a slight decrease to a cold 5.9°C (42.6°F) from the day's peak.

Humidity

The months with the highest humidity in Brighton are January and December, with an average relative humidity of 85%.

Rainfall

The months with the most rainfall are November and December, with an average 59mm (2.32") of precipitation.

Snowfall

January through April, November and December are months with snowfall. In December, it is snowing for 0.9 days. Throughout December, 5mm (0.2") of snow is accumulated. In Brighton, United Kingdom, during the entire year, snow falls for 5.4 days and aggregates up to 23mm (0.91") of snow.

Sea temperature

In Brighton, United Kingdom, the average seawater temperature in December is 11.9°C (53.4°F).
Note: With an efficient thermal swimsuit, one can navigate 11.9°C (53.4°F) even if it's colder than 10°C (50°F); otherwise, rapid cold shock and breathlessness might set in. Barely wading at 13°C (55.4°F) feels chilly.

Daylight

December has the shortest days of the year, with an average of 8h and 0min of daylight.
On the first day of the month, sunrise is at 7:41 am and sunset at 3:58 pm. On the last day of December, in Brighton, sunrise is at 8:02 am and sunset at 4:04 pm GMT.

Sunshine

The average sunshine in December in Brighton is 4.4h.

UV index

In December, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A daily maximum UV index of 3 in December translates into the following instructions:
Undertake precautions - It is suggested to shield oneself from sunburn. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.

Frequently asked questions

What is the average December temperature in Brighton?

Brighton in December has an average high-temperature of 9.2°C (48.6°F) and an average low-temperature of 5.9°C (42.6°F).

What is the most humid month in Brighton?

January and December, with an average relative humidity of 85%, are most humid months in Brighton.

What is the average humidity in December in Brighton?

The average relative humidity in December is 85%.

What is the rainiest month in Brighton?

The months with the most rainfall are November and December, with an average 59mm (2.32") of precipitation.

How many days does it rain in December in Brighton?

In Brighton, United Kingdom, during December, the rain falls for 17.2 days and regularly aggregates up to 59mm (2.32") of precipitation.

How many days does it snow in December in Brighton?

In Brighton, in December, during 0.9 snowfall days, 5mm (0.2") of snow is typically accumulated.

How cold is the water in December in Brighton?

In Brighton, the average seawater temperature in December is 11.9°C (53.4°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

What is the month with the shortest days in Brighton?

December has the shortest days of the year, with an average of 8h and 0min of daylight.

What is the average length of the day in December in Brighton?

In Brighton, the average day length in December is 8h and 2min.

When is the sunrise / sunset in December in Brighton?

On the first day of December in Brighton, United Kingdom, sunrise is at 7:41 am and sunset at 3:58 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 4:04 pm GMT.

How many hours of sunshine does Brighton have in December?

In December, the average sunshine duration is 4.4h.

How high is the UV index in December in Brighton?

The average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in December
Brighton, United Kingdom

Average temperature in December - Brighton, 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
Brighton, United Kingdom

Average pressure in December - Brighton, 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
Brighton, United Kingdom

Average wind speed in December - Brighton, 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
Brighton, United Kingdom

Average humidity in December - Brighton, 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
Brighton, United Kingdom

Average rainfall in December - Brighton, 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
Brighton, United Kingdom

Average rainfall days in December - Brighton, 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
Brighton, United Kingdom

Average snowfall in December - Brighton, 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
Brighton, United Kingdom

Average snowfall days in December - Brighton, 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 sea temperature in December
Brighton, United Kingdom

Average sea temperature in December - Brighton, United Kingdom
  • Average sea temperature in December: 11.9°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 (8.3°C).

Average daylight in December /
Average sunshine in December
Brighton, United Kingdom

Average daylight in December / Average sunshine in December - Brighton, 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
Brighton, United Kingdom

Average sunshine days in December - Brighton, 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
Brighton, United Kingdom

Average UV index in December - Brighton, 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
Brighton, United Kingdom

Average cloud cover in December - Brighton, 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
Brighton, United Kingdom

Average visibility in December - Brighton, 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).

Brighton, United Kingdom

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