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 arrival brings an average high-temperature of a still frosty 7.1°C (44.8°F), slightly deviating from November's 9.4°C (48.9°F). The temperature in Upper Swell, United Kingdom, during December experiences a small drop from daytime peaks, recording an average of 2.7°C (36.9°F) at night.Humidity
With an average relative humidity of 91%, December is the most humid month in Upper Swell.Rainfall
In Upper Swell, in December, it is raining for 11.7 days, with typically 23mm (0.91") of accumulated precipitation. Throughout the year, there are 147.8 rainfall days, and 259mm (10.2") of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Upper Swell, United Kingdom, in December, during 1.3 snowfall days, 5mm (0.2") of snow is typically accumulated. In Upper Swell, during the entire year, snow falls for 10.8 days and aggregates up to 39mm (1.54") of snow.Daylight
The month with the shortest days is December, with an average of 7h and 54min of daylight.On the first day of the month, sunrise is at 7:52 am and sunset at 3:59 pm. On the last day of December, sunrise is at 8:14 am and sunset at 4:05 pm GMT.
Sunshine
In Upper Swell, the average sunshine in December is 4h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Upper Swell. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.Note: A daily high UV index of 2 in December leads to these guidelines:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Frequently asked questions
What is the average December temperature in Upper Swell?
What is the most humid month in Upper Swell?
What is the average humidity in December in Upper Swell?
How many days does it rain in December in Upper Swell?
How much does it snow in Upper Swell in December?
What is the month with the shortest days in Upper Swell?
What is the average length of the day in December in Upper Swell?
When is the sunrise / sunset in December in Upper Swell?
How many hours of sunshine does Upper Swell have in December?
When is the lowest UV index in Upper Swell?
What is the UV index intensity in December in Upper Swell?
Average temperature in December
Upper Swell, United Kingdom
- Average high temperature in December: 7.1°C
The warmest month (with the highest average high temperature) is July (20.5°C).
The month with the lowest average high temperature is January (6.3°C).
- Average low temperature in December: 2.7°C
The month with the highest average low temperature is August (12.1°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).
Average pressure in December
Upper Swell, United Kingdom
- Average pressure in December: 1013.9mbar
The months with the highest atmospheric pressure are May and September (1016.6mbar).
The month with the lowest atmospheric pressure is November (1010mbar).
Average wind speed in December
Upper Swell, United Kingdom
- Average wind speed in December: 18.2km/h
The windiest month (with the highest average wind speed) is February (18.4km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).
Average humidity in December
Upper Swell, United Kingdom
- Average humidity in December: 91%
The month with the highest relative humidity is December (91%).
The months with the lowest relative humidity are July and August (81%).
Average rainfall in December
Upper Swell, United Kingdom
- Average rainfall in December: 23mm
The wettest month (with the highest rainfall) is August (29mm).
The driest month (with the least rainfall) is April (14mm).
Average rainfall days in December
Upper Swell, United Kingdom
- Average rainfall days in December: 11.7 days
The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is September (10.1 days).
Average snowfall in December
Upper Swell, United Kingdom
- Average snowfall in December: 5mm
The month with the highest snowfall is February (16mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Upper Swell, United Kingdom
- Average snowfall days in December: 1.3 days
The month with the highest number of snowfall days is February (4.4 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
Upper Swell, United Kingdom
- Average daylight in December: 7h and 5min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is July (Average sunshine: 7h and 24min).
The month with the least sunshine is November (Average sunshine: 3h and 36min).
Average sunshine days in December
Upper Swell, United Kingdom
- Average sunshine days in December: 16.1 days
The month with the most sunshine days is October (16.8 days).
The month with the least sunshine days is July (11 days).
Average UV index in December
Upper Swell, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Upper Swell, United Kingdom
- Average cloud cover in December: 60
The month with the most cloud cover is November (Cloud cover 64).
The months with the least cloud cover are April and September (Cloud cover 53).
Average visibility in December
Upper Swell, United Kingdom
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, May, October and December (9km).
The months with the lowest visibility are April, June, July, August, September and November (8km).
Upper Swell, United Kingdom
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