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 sea temperature 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
The advent of December observes an average high-temperature of a frosty 9.2°C (48.6°F), nearly identical to November's 11.1°C (52°F). Swanage observes a minimal variance in temperature, with a consistent average low of 6.1°C (43°F) during the nights of December.Humidity
January and December, with an average relative humidity of 85%, are the most humid months in Swanage, United Kingdom.Rainfall
In Swanage, during December, the rain falls for 13.5 days and regularly aggregates up to 39mm (1.54") of precipitation. Throughout the year, in Swanage, there are 162.1 rainfall days, and 328mm (12.91") of precipitation is accumulated.Snowfall
January, February, November and December are months with snowfall. December is the month with the most snowfall in Swanage. Snow falls for 0.8 days and accumulates 5mm (0.2") of snow.Sea temperature
In December, the average sea temperature is 11.8°C (53.2°F).Note: In 11.8°C (53.2°F), cold shock and rapid breathing can occur when swimming at temperatures below 10°C (50°F).
Daylight
With an average of 8h and 6min of daylight, December has the shortest days of the year.On the first day of December in Swanage, sunrise is at 7:47 am and sunset at 4:06 pm. On the last day of the month, sunrise is at 8:09 am and sunset at 4:13 pm GMT.
Sunshine
In Swanage, United Kingdom, the average sunshine in December is 4.3h.UV index
In December, the average daily maximum UV index in Swanage, United Kingdom, is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The daily maximum UV index of 3 in December interprets into the following advice:
Guard yourself - Avoiding sunburn is suggested. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Stay sun-safe with clothing that is both closely woven and worn loosely. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature in Swanage?
What are the most humid months in Swanage?
What is the average humidity in December in Swanage?
How many days does it rain in December in Swanage?
When does it snow the most in Swanage?
How much does it snow in Swanage in December?
What is the water temperature in December in Swanage?
What is the month with the shortest days in Swanage?
What is the average length of the day in December in Swanage?
When is the sunrise / sunset in December in Swanage?
How many hours of sunshine does Swanage have in December?
What is the UV index reading in December in Swanage?
Average temperature in December
Swanage, United Kingdom
- Average high temperature in December: 9.2°C
The warmest month (with the highest average high temperature) is July (19°C).
The month with the lowest average high temperature is February (7.9°C).
- Average low temperature in December: 6.1°C
The month with the highest average low temperature is August (14.4°C).
The coldest month (with the lowest average low temperature) is February (4.6°C).
Average pressure in December
Swanage, United Kingdom
- Average pressure in December: 1015.1mbar
The month with the highest atmospheric pressure is September (1017.2mbar).
The month with the lowest atmospheric pressure is November (1010.6mbar).
Average wind speed in December
Swanage, United Kingdom
- Average wind speed in December: 24.3km/h
The windiest month (with the highest average wind speed) is December (24.3km/h).
The calmest month (with the lowest average wind speed) is July (16.7km/h).
Average humidity in December
Swanage, 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 April, May, July and September (81%).
Average rainfall in December
Swanage, United Kingdom
- Average rainfall in December: 39mm
The wettest month (with the highest rainfall) is November (46mm).
The driest month (with the least rainfall) is May (17mm).
Average rainfall days in December
Swanage, United Kingdom
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is November (17.6 days).
The month with the least rainy days is May (11.3 days).
Average snowfall in December
Swanage, United Kingdom
- Average snowfall in December: 5mm
The month with the highest snowfall is December (5mm).
The months with the least snowfall are March, April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Swanage, United Kingdom
- Average snowfall days in December: 0.8 days
The month with the highest number of snowfall days is 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
Swanage, United Kingdom
- Average sea temperature in December: 11.8°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 (8.7°C).
Average daylight in December /
Average sunshine in December
Swanage, 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 2min
The month with the most sunshine is July (Average sunshine: 9h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in December
Swanage, United Kingdom
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is May (15.9 days).
The month with the least sunshine days is November (9.1 days).
Average UV index in December
Swanage, 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 and February (UV index 2).
Average cloud cover in December
Swanage, United Kingdom
- Average cloud cover in December: 57
The month with the most cloud cover is November (Cloud cover 58).
The months with the least cloud cover are July and September (Cloud cover 42).
Average visibility in December
Swanage, 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).
