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
Portesham records an average high-temperature of a frosty 9.9°C (49.8°F) as December arrives, nearly mirroring the previous month's climate. Portesham's nighttime temperatures in December display a slight drop from daytime highs, averaging to 7.6°C (45.7°F).Humidity
The months with the lowest humidity in Portesham are February through April, September through December, with an average relative humidity of 81%.Rainfall
In Portesham, in December, during 15 rainfall days, 55mm (2.17") of precipitation is typically accumulated. In Portesham, during the entire year, the rain falls for 167.3 days and collects up to 471mm (18.54") of precipitation.Snowfall
March through October and December are months without snowfall in Portesham.Daylight
With an average of 8h and 6min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:50 am and sunset at 4:08 pm. On the last day of December, in Portesham, United Kingdom, sunrise is at 8:11 am and sunset at 4:15 pm GMT.
Sunshine
In Portesham, the average sunshine in December is 4.2h.UV index
The average daily maximum UV index in December in Portesham 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: A maximum high daily UV index of 3 during December translates into the following directions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. To cut down UV radiation exposure by about half, sport a wide-brim hat. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December in Portesham?
What are the least humid months in Portesham?
What is the average humidity in December in Portesham?
How much does it rain in Portesham in December?
When it does not snow in Portesham?
Does it snow in Portesham in December?
What is the month with the shortest days in Portesham?
What is the average length of the day in December in Portesham?
When is the sunrise / sunset in December in Portesham?
How many hours of sunshine does Portesham have in December?
What is the UV index intensity in December in Portesham?
Average temperature in December
Portesham, United Kingdom
- Average high temperature in December: 9.9°C
The warmest month (with the highest average high temperature) is August (18.2°C).
The month with the lowest average high temperature is February (8.3°C).
- Average low temperature in December: 7.6°C
The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is February (5.8°C).
Average pressure in December
Portesham, United Kingdom
- Average pressure in December: 1015.1mbar
The month with the highest atmospheric pressure is September (1017.3mbar).
The month with the lowest atmospheric pressure is November (1010.6mbar).
Average wind speed in December
Portesham, United Kingdom
- Average wind speed in December: 30.1km/h
The windiest month (with the highest average wind speed) is December (30.1km/h).
The calmest month (with the lowest average wind speed) is July (19.5km/h).
Average humidity in December
Portesham, United Kingdom
- Average humidity in December: 81%
The months with the highest relative humidity are June and July (83%).
The months with the lowest relative humidity are February, March, April, September, October, November and December (81%).
Average rainfall in December
Portesham, United Kingdom
- Average rainfall in December: 55mm
The wettest month (with the highest rainfall) is November (58mm).
The driest month (with the least rainfall) is May (27mm).
Average rainfall days in December
Portesham, United Kingdom
- Average rainfall days in December: 15 days
The month with the highest number of rainy days is November (17 days).
The month with the least rainy days is September (11.1 days).
Average snowfall in December
Portesham, United Kingdom
- Average snowfall in December: 0mm
The month with the highest snowfall is February (2mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and December (0mm).
Average snowfall days in December
Portesham, United Kingdom
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is February (1.2 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
Portesham, United Kingdom
- Average daylight in December: 8h and 1min
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 6min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The months with the least sunshine are January, February and November (Average sunshine: 4h and 6min).
Average sunshine days in December
Portesham, United Kingdom
- Average sunshine days in December: 11.8 days
The month with the most sunshine days is September (15.6 days).
The month with the least sunshine days is November (10.1 days).
Average UV index in December
Portesham, United Kingdom
- Average UV index in December: 3
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January and February (UV index 2).
Average cloud cover in December
Portesham, United Kingdom
- Average cloud cover in December: 59
The month with the most cloud cover is December (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in December
Portesham, United Kingdom
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
