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
December
Weather in December
Temperature
December's advent notes a subtle adjustment in average high-temperature to a chilly 8.3°C (46.9°F) from November. Roffey sees a minor drop to an average minimum temperature of 4°C (39.2°F) during the night in the month of December.Humidity
With an average relative humidity of 89%, December is the most humid month.Rainfall
December is the month with the most rainfall. Rain falls for 13.6 days and accumulates 42mm (1.65") of precipitation.Snowfall
January through April, November and December are months with snowfall. In Roffey, United Kingdom, in December, during 1.7 snowfall days, 12mm (0.47") of snow is typically accumulated. Throughout the year, there are 9.7 snowfall days, and 47mm (1.85") of snow is accumulated.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 7:43 am and sunset at 3:57 pm. On the last day of December, in Roffey, sunrise is at 8:04 am and sunset at 4:04 pm GMT.
Sunshine
In December, the average sunshine is 4.2h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The UV index of 2 in December translates into these instructions:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Roffey in December?
What is the most humid month in Roffey?
What is the average humidity in December in Roffey?
What is the rainiest month in Roffey?
How many days does it rain in December in Roffey?
How much does it snow in Roffey in December?
What is the month with the shortest days in Roffey?
What is the average length of the day in December in Roffey?
What time are sunrise and sunset in December in Roffey?
How many hours of sunshine does Roffey have in December?
When is the lowest UV index in Roffey?
What is the UV index reading in December in Roffey?
Average temperature in December
Roffey, United Kingdom
- Average high temperature in December: 8.3°C
The warmest month (with the highest average high temperature) is July (21.3°C).
The month with the lowest average high temperature is January (7.2°C).
- Average low temperature in December: 4°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (2.7°C).
Average pressure in December
Roffey, 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 (1010.8mbar).
Average wind speed in December
Roffey, United Kingdom
- Average wind speed in December: 18km/h
The windiest month (with the highest average wind speed) is February (18.1km/h).
The calmest months (with the lowest average wind speed) are July and August (13.3km/h).
Average humidity in December
Roffey, 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 (77%).
Average rainfall in December
Roffey, United Kingdom
- Average rainfall in December: 42mm
The wettest month (with the highest rainfall) is December (42mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in December
Roffey, United Kingdom
- Average rainfall days in December: 13.6 days
The month with the highest number of rainy days is November (16.6 days).
The month with the least rainy days is September (10.6 days).
Average snowfall in December
Roffey, United Kingdom
- Average snowfall in December: 12mm
The month with the highest snowfall is January (15mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Roffey, United Kingdom
- Average snowfall days in December: 1.7 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
Roffey, 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 1min
The month with the most sunshine is July (Average sunshine: 8h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in December
Roffey, United Kingdom
- Average sunshine days in December: 12.9 days
The month with the most sunshine days is September (16.1 days).
The months with the least sunshine days are February and November (10.7 days).
Average UV index in December
Roffey, 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
Roffey, 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, July, August and September (Cloud cover 47).
Average visibility in December
Roffey, 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).
