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
The onset of December manifests an average high-temperature of a fresh 11.9°C (53.4°F), demonstrating a minor variation from the preceding month. Arcachon, during the December nights, maintains an average temperature of 7.5°C (45.5°F), closely aligned with its daytime readings.Humidity
The average relative humidity in December in Arcachon is 80%.Rainfall
In Arcachon, France, during December, the rain falls for 14 days and regularly aggregates up to 62mm (2.44") of precipitation. In Arcachon, during the entire year, the rain falls for 160.9 days and collects up to 555mm (21.85") of precipitation.Snowfall
January, February and December are months with snowfall in Arcachon. December is the first month it typically snows. Throughout December, in the average 0.3 snowfall days, it receives 1mm (0.04") of snow. In Arcachon, during the entire year, snow falls for 1.4 days and aggregates up to 12mm (0.47") of snow.Sea temperature
In December, the average sea temperature in Arcachon is 14°C (57.2°F).Note: Unprotected swimming in 14°C (57.2°F) is dangerous due to potential cold shock. Especially when temperatures go below 10°C (50°F), leading to hyperventilation.
Daylight
The month with the shortest days in Arcachon, France, is December, with an average of 8h and 54min of daylight.On the first day of December in Arcachon, France, sunrise is at 08:21 and sunset at 17:25. On the last day of the month, sunrise is at 08:41 and sunset at 17:34 CET.
Sunshine
The months with the least sunshine in Arcachon are November and December, with an average of 4.9h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A daily maximum UV index of 3 in December translates into the following instructions:
Take precautions - Protection against sun damage is advised. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Frequently asked questions
What are the temperatures in Arcachon in December?
What is the average humidity in December in Arcachon?
How many days does it rain in December in Arcachon?
When does it start to snow in Arcachon?
What is the water temperature in December in Arcachon?
What is the month with the shortest days in Arcachon?
What is the average length of the day in December in Arcachon?
What time are sunrise and sunset in December in Arcachon?
What is the month with the least sunshine in Arcachon?
How many hours of sunshine does Arcachon have in December?
What are the months with the lowest UV index in Arcachon?
What is the UV index reading in December in Arcachon?
Average temperature in December
Arcachon, France
- Average high temperature in December: 11.9°C
The warmest month (with the highest average high temperature) is August (25.4°C).
The month with the lowest average high temperature is January (10.5°C).
- Average low temperature in December: 7.5°C
The months with the highest average low temperature are July and August (17.4°C).
The coldest month (with the lowest average low temperature) is February (6°C).
Average pressure in December
Arcachon, France
- Average pressure in December: 1021mbar
The month with the highest atmospheric pressure is December (1021mbar).
The month with the lowest atmospheric pressure is November (1015mbar).
Average wind speed in December
Arcachon, France
- Average wind speed in December: 15.1km/h
The windiest month (with the highest average wind speed) is February (15.4km/h).
The calmest month (with the lowest average wind speed) is August (11km/h).
Average humidity in December
Arcachon, France
- Average humidity in December: 80%
The month with the highest relative humidity is January (81%).
The months with the lowest relative humidity are August and September (71%).
Average rainfall in December
Arcachon, France
- Average rainfall in December: 62mm
The wettest month (with the highest rainfall) is November (89mm).
The driest months (with the least rainfall) are August and September (29mm).
Average rainfall days in December
Arcachon, France
- Average rainfall days in December: 14 days
The month with the highest number of rainy days is November (17.1 days).
The month with the least rainy days is September (10.4 days).
Average snowfall in December
Arcachon, France
- Average snowfall in December: 1mm
The month with the highest snowfall is February (9mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Arcachon, France
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in December
Arcachon, France
- Average sea temperature in December: 14°C
The best month for swimming (with the highest average sea temperature) is August (22°C).
The coldest months (with the lowest average sea temperature) are February and March (12°C).
Average daylight in December /
Average sunshine in December
Arcachon, France
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are November and December (Average sunshine: 4h and 54min).
Average sunshine days in December
Arcachon, France
- Average sunshine days in December: 15.4 days
The month with the most sunshine days is September (17.8 days).
The month with the least sunshine days is November (11.4 days).
Average UV index in December
Arcachon, France
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover in December
Arcachon, France
- Average cloud cover in December: 48
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are August and September (Cloud cover 28).
Average visibility in December
Arcachon, France
- Average visibility in December: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and December (10km).
The months with the lowest visibility are January and November (9km).
Arcachon, France
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