December weather forecastMarsan, France

December

Weather in December

December, the first month of the winter in Marsan, is still a cool month, with an average temperature ranging between max 10.2°C (50.4°F) and min 4.4°C (39.9°F).

Temperature

Transitioning from November to December involves a subtle drop in average high-temperatures, descending from a moderate 13.3°C (55.9°F) to a cool 10.2°C (50.4°F). During December, the nighttime temperature averages to a cold 4.4°C (39.9°F).

Humidity

In December, the average relative humidity in Marsan is 82%.

Rainfall

In Marsan, in December, during 11 rainfall days, 31mm (1.22") of precipitation is typically accumulated. In Marsan, during the entire year, the rain falls for 155.2 days and collects up to 440mm (17.32") of precipitation.

Snowfall

Months with snowfall in Marsan are January through March, November and December. In Marsan, France, during December, snow falls for 0.8 days and regularly aggregates up to 3mm (0.12") of snow. In Marsan, during the entire year, snow falls for 4.7 days and aggregates up to 39mm (1.54") of snow.

Daylight

The month with the shortest days in Marsan is December, with an average of 9h and 0min of daylight.
On the first day of the month, sunrise is at 08:11 and sunset at 17:21. On the last day of December, sunrise is at 08:30 and sunset at 17:30 CET.

Sunshine

In December, the average sunshine is 5.4h.

UV index

The average daily maximum UV index in December in Marsan, France, is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In December, a daily UV index of 3 turns into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.

Frequently asked questions

The average high-temperature, in December, in Marsan, is 10.2°C (50.4°F), while the average low-temperature is 4.4°C (39.9°F). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is evaluated at 30°C (86°F).

The average relative humidity in December in Marsan, France, is 82%.

In Marsan, in December, it is raining for 11 days, with typically 31mm (1.22") of accumulated precipitation.

In December, in Marsan, it is snowing for 0.8 days. Throughout December, 3mm (0.12") of snow is accumulated.

The month with the shortest days in Marsan, France, is December, with an average of 9h and 0min of daylight.

In December, the average day length is 9h and 0min.

In December, on the first day of the month, sunrise is at 08:11 and sunset at 17:21. On the last day of the month, in Marsan, France, sunrise is at 08:30 and sunset at 17:30 CET.

The average sunshine duration in December in Marsan, France, is 5.4h.

In December, the average daily maximum UV index in Marsan, France, is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Marsan, France

  • Average high temperature in December: 10.2°C

The warmest month (with the highest average high temperature) is August (27.8°C).
The month with the lowest average high temperature is January (9°C).

  • Average low temperature in December: 4.4°C

The month with the highest average low temperature is August (15.9°C).
The coldest month (with the lowest average low temperature) is February (2.8°C).

Average pressure in December
Marsan, France

  • Average pressure in December: 1021.7mbar

The month with the highest atmospheric pressure is December (1021.7mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).

Average wind speed in December
Marsan, France

  • Average wind speed in December: 11.2km/h

The windiest month (with the highest average wind speed) is February (12.3km/h).
The calmest month (with the lowest average wind speed) is September (8.7km/h).

Average humidity in December
Marsan, France

  • Average humidity in December: 82%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (67%).

Average rainfall in December
Marsan, France

  • Average rainfall in December: 31mm

The wettest month (with the highest rainfall) is May (52mm).
The driest month (with the least rainfall) is September (22mm).

Average rainfall days in December
Marsan, France

  • Average rainfall days in December: 11 days

The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is September (9.9 days).

Average snowfall in December
Marsan, France

  • Average snowfall in December: 3mm

The month with the highest snowfall is February (16mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in December
Marsan, France

  • Average snowfall days in December: 0.8 days

The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Marsan, France

  • Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 5h and 24min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).

Average sunshine days in December
Marsan, France

  • Average sunshine days in December: 18.4 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is April (12.7 days).

Average UV index in December
Marsan, France

  • Average UV index in December: 3

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and November (UV index 2).

Average cloud cover in December
Marsan, France

  • Average cloud cover in December: 43

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is September (Cloud cover 29).

Average visibility in December
Marsan, France

  • Average visibility in December: 9km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).