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 beginning signals an average high-temperature of a chilly 9.3°C (48.7°F), barely different from November's 11.7°C (53.1°F). Guern sees a gentle drop from the daily peak temperature in December, with an average low settling at a wintry 4.7°C (40.5°F).Humidity
December is the most humid month in Guern, France, with an average relative humidity of 89%.Rainfall
The month with the most rainfall is December, when the rain falls for 17.5 days and typically aggregates up to 76mm (2.99") of precipitation.Snowfall
January through April, November and December are months with snowfall in Guern. In December, it is snowing for 1.6 days. Throughout December, 8mm (0.31") of snow is accumulated. In Guern, during the entire year, snow falls for 8.1 days and aggregates up to 46mm (1.81") of snow.Daylight
December has the shortest days of the year, with an average of 8h and 30min of daylight.On the first day of the month, sunrise is at 08:41 and sunset at 17:21. On the last day of December, in Guern, sunrise is at 09:02 and sunset at 17:28 CET.
Sunshine
In Guern, France, the average sunshine in December is 3.6h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Guern, France. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 2 in December translates into this advice:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Guern in December?
What is the most humid month in Guern?
What is the average humidity in December in Guern?
What is the rainiest month in Guern?
How many days does it rain in December in Guern?
How much does it snow in Guern in December?
What is the month with the shortest days in Guern?
What is the average length of the day in December in Guern?
When are sunrise and sunset in December in Guern?
How many hours of sunshine does Guern have in December?
What are the months with the lowest UV index in Guern?
What is the UV index reading in December in Guern?
Average temperature in December
Guern, France
- Average high temperature in December: 9.3°C
The warmest month (with the highest average high temperature) is July (21.4°C).
The month with the lowest average high temperature is January (8.4°C).
- Average low temperature in December: 4.7°C
The months with the highest average low temperature are July and August (12°C).
The coldest month (with the lowest average low temperature) is February (3°C).
Average pressure in December
Guern, France
- Average pressure in December: 1017.9mbar
The month with the highest atmospheric pressure is September (1018.4mbar).
The month with the lowest atmospheric pressure is November (1012.4mbar).
Average wind speed in December
Guern, France
- Average wind speed in December: 16.2km/h
The windiest month (with the highest average wind speed) is February (16.9km/h).
The calmest month (with the lowest average wind speed) is August (11.5km/h).
Average humidity in December
Guern, France
- 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 September (81%).
Average rainfall in December
Guern, France
- Average rainfall in December: 76mm
The wettest month (with the highest rainfall) is December (76mm).
The driest month (with the least rainfall) is September (23mm).
Average rainfall days in December
Guern, France
- Average rainfall days in December: 17.5 days
The month with the highest number of rainy days is January (18.3 days).
The month with the least rainy days is September (12.4 days).
Average snowfall in December
Guern, France
- Average snowfall in December: 8mm
The month with the highest snowfall is January (17mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Guern, France
- Average snowfall days in December: 1.6 days
The month with the highest number of snowfall days is February (2.8 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
Guern, France
- Average daylight in December: 8h and 3min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in December: 3h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in December
Guern, France
- Average sunshine days in December: 10.5 days
The month with the most sunshine days is September (13.8 days).
The month with the least sunshine days is November (7.1 days).
Average UV index in December
Guern, France
- 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
Guern, France
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 45).
Average visibility in December
Guern, France
- Average visibility in December: 9km
The months with the highest visibility are February, March and December (9km).
The months with the lowest visibility are January, April, May, June, July, August, September, October and November (8km).
