December weather forecastSutton, United Kingdom

December

Weather in December

The first month of the winter, December, is still a chilly month in Sutton, United Kingdom, with an average temperature varying between 3.7°C (38.7°F) and 7.9°C (46.2°F).

Temperature

December's advent notes a subtle adjustment in average high-temperature to a chilly 7.9°C (46.2°F) from November. In Sutton, nights during December observe an average temperature decrease to an icy 3.7°C (38.7°F).

Humidity

December is the most humid month, with an average relative humidity of 89%.

Rainfall

The month with the most rainfall in Sutton, United Kingdom, is December, when the rain falls for 13.7 days and typically aggregates up to 47mm (1.85") of precipitation.

Snowfall

January through April, November and December are months with snowfall. In Sutton, during December, snow falls for 2.1 days and regularly aggregates up to 15mm (0.59") of snow. Throughout the year, there are 10.1 snowfall days, and 66mm (2.6") of snow is accumulated.

Daylight

With an average of 8h and 0min of daylight, December has the shortest days of the year.
On the first day of December in Sutton, sunrise is at 7:44 am and sunset at 3:55 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 4:02 pm GMT.

Sunshine

In December, the average sunshine is 4.2h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Sutton. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: During December, 2 as the daily maximum UV index converts into the following advice:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.

Frequently asked questions

An average high-temperature, in December, in Sutton, is 7.9°C (46.2°F) and the average low-temperature is 3.7°C (38.7°F).

December is the most humid month in Sutton, with an average relative humidity of 89%.

In Sutton, United Kingdom, the average relative humidity in December is 89%.

December is the month with the most rainfall in Sutton, United Kingdom. Rain falls for 13.7 days and accumulates 47mm (1.85") of precipitation.

In December, in Sutton, the rain falls for 13.7 days. Throughout December, 47mm (1.85") of precipitation is accumulated.

In Sutton, United Kingdom, in December, snow falls for 2.1 days, with typically accumulated 15mm (0.59") of snow.

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

The average day length in December in Sutton is 7h and 57min.

On the first day of December in Sutton, United Kingdom, sunrise is at 7:44 am and sunset at 3:55 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 4:02 pm GMT.

In December, the average sunshine duration in Sutton is 4.2h.

The months with the lowest UV index in Sutton are January, February, November and December, with an average maximum UV index of 2.

The average daily maximum UV index in December in Sutton is 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Sutton, United Kingdom

  • Average high temperature in December: 7.9°C

The warmest month (with the highest average high temperature) is July (21.9°C).
The month with the lowest average high temperature is January (6.7°C).

  • Average low temperature in December: 3.7°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 (2.4°C).

Average pressure in December
Sutton, United Kingdom

  • Average pressure in December: 1014.7mbar

The month with the highest atmospheric pressure is September (1017mbar).
The month with the lowest atmospheric pressure is November (1010.7mbar).

Average wind speed in December
Sutton, United Kingdom

  • Average wind speed in December: 17.2km/h

The windiest month (with the highest average wind speed) is February (17.5km/h).
The calmest months (with the lowest average wind speed) are July, August and September (12.8km/h).

Average humidity in December
Sutton, United Kingdom

  • Average humidity in December: 89%

The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (74%).

Average rainfall in December
Sutton, United Kingdom

  • Average rainfall in December: 47mm

The wettest month (with the highest rainfall) is December (47mm).
The driest month (with the least rainfall) is April (21mm).

Average rainfall days in December
Sutton, United Kingdom

  • Average rainfall days in December: 13.7 days

The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is September (11.1 days).

Average snowfall in December
Sutton, United Kingdom

  • Average snowfall in December: 15mm

The month with the highest snowfall is February (25mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in December
Sutton, United Kingdom

  • Average snowfall days in December: 2.1 days

The month with the highest number of snowfall days is February (3.8 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
Sutton, United Kingdom

  • Average daylight in December: 8h and 0min

The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).

  • Average sunshine in December: 4h and 12min

The months with the most sunshine are July and August (Average sunshine: 8h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).

Average sunshine days in December
Sutton, United Kingdom

  • Average sunshine days in December: 13.5 days

The month with the most sunshine days is September (16.4 days).
The month with the least sunshine days is February (12.3 days).

Average UV index in December
Sutton, 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, November and December (UV index 2).

Average cloud cover in December
Sutton, United Kingdom

  • Average cloud cover in December: 58

The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 47).

Average visibility in December
Sutton, 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).