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
Weather in December
Temperature
December's weather records an average high-temperature of a still fresh 10.1°C (50.2°F), showing little deviation from November. During the December nights, Trebeurden's temperature maintains an average close to the daytime highs, settling at a frosty 7°C (44.6°F).Humidity
The average relative humidity in December in Trebeurden, France, is 83%.Rainfall
In Trebeurden, France, during December, the rain falls for 21.2 days and regularly aggregates up to 74mm (2.91") of precipitation. In Trebeurden, during the entire year, the rain falls for 214.9 days and collects up to 647mm (25.47") of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Trebeurden, in December, during 0.9 snowfall days, 9mm (0.35") of snow is typically accumulated. Throughout the year, there are 4.5 snowfall days, and 38mm (1.5") of snow is accumulated.Sea temperature
In Trebeurden, the average seawater temperature in December is 12.7°C (54.9°F).Note: At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.
Daylight
December has the shortest days of the year, with an average of 8h and 18min of daylight.On the first day of December, sunrise is at 08:46 and sunset at 17:20. On the last day of the month, sunrise is at 09:07 and sunset at 17:27 CET.
Sunshine
In Trebeurden, the average sunshine in December is 3.5h.UV index
In December, the average daily maximum UV index in Trebeurden is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: A maximum high daily UV index of 3 during December translates into the following directions:
Put precautions into practice - Guidance to elude sunburn is provided. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the usual temperature for Trebeurden in December?
What is the average humidity in December in Trebeurden?
How much does it rain in Trebeurden in December?
How much does it snow in Trebeurden in December?
How cold is the water in December in Trebeurden?
What is the month with the shortest days in Trebeurden?
How many hours of daylight does Trebeurden have in December?
When are sunrise and sunset in December in Trebeurden?
How long on average sun shines in December in Trebeurden?
What is the UV index intensity in December in Trebeurden?
Average temperature in December
Trebeurden, France
- Average high temperature in December: 10.1°C
The warmest month (with the highest average high temperature) is August (19.1°C).
The month with the lowest average high temperature is January (9°C).
- Average low temperature in December: 7°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is February (5.4°C).
Average pressure in December
Trebeurden, France
- Average pressure in December: 1017.2mbar
The month with the highest atmospheric pressure is September (1018.2mbar).
The month with the lowest atmospheric pressure is November (1011.9mbar).
Average wind speed in December
Trebeurden, France
- Average wind speed in December: 25.3km/h
The windiest months (with the highest average wind speed) are February and December (25.3km/h).
The calmest month (with the lowest average wind speed) is July (16.3km/h).
Average humidity in December
Trebeurden, France
- Average humidity in December: 83%
The month with the highest relative humidity is June (85%).
The months with the lowest relative humidity are February, March, April, September and October (82%).
Average rainfall in December
Trebeurden, France
- Average rainfall in December: 74mm
The wettest month (with the highest rainfall) is November (82mm).
The driest month (with the least rainfall) is September (32mm).
Average rainfall days in December
Trebeurden, France
- Average rainfall days in December: 21.2 days
The month with the highest number of rainy days is November (21.7 days).
The month with the least rainy days is September (14.1 days).
Average snowfall in December
Trebeurden, France
- Average snowfall in December: 9mm
The month with the highest snowfall is January (11mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Trebeurden, France
- Average snowfall days in December: 0.9 days
The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in December
Trebeurden, France
- Average sea temperature in December: 12.7°C
The best month for swimming (with the highest average sea temperature) is August (16.9°C).
The coldest month (with the lowest average sea temperature) is March (9.9°C).
Average daylight in December /
Average sunshine in December
Trebeurden, France
- Average daylight in December: 8h and 2min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in December: 3h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in December
Trebeurden, France
- Average sunshine days in December: 5.5 days
The month with the most sunshine days is September (11.2 days).
The month with the least sunshine days is November (4.8 days).
Average UV index in December
Trebeurden, France
- Average UV index in December: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February and November (UV index 2).
Average cloud cover in December
Trebeurden, France
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are April and July (Cloud cover 42).
Average visibility in December
Trebeurden, France
- Average visibility in December: 9km
The months with the highest visibility are March, April, June and July (10km).
The months with the lowest visibility are January, February, May, August, September, October, November and December (9km).
Trebeurden, France
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