December weather forecastCastillon-Debats, France

December weather for Castillon-Debats, France: In Castillon-Debats, France, in December, during 0.8 snowfall days, 3mm (0.12") of snow is typically accumulated. The first month of the winter, December, is still a cool month in Castillon-Debats, France, with an average temperature varying between 4.4°C (39.9°F) and 10.2°C (50.4°F).

December

Weather in December

The first month of the winter, December, is still a cool month in Castillon-Debats, France, with an average temperature varying between 4.4°C (39.9°F) and 10.2°C (50.4°F).

Temperature

As December arrives, Castillon-Debats's weather displays a minor decrease in high-temperatures, transitioning from November's refreshing 13.3°C (55.9°F) to a cool 10.2°C (50.4°F). During December, the nighttime temperature in Castillon-Debats averages to an icy 4.4°C (39.9°F).

Humidity

The average relative humidity in December in Castillon-Debats is 82%.

Rainfall

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

Snowfall

January through March, November and December are months with snowfall. In Castillon-Debats, France, in December, during 0.8 snowfall days, 3mm (0.12") of snow is typically accumulated. In Castillon-Debats, during the entire year, snow falls for 4.7 days and aggregates up to 39mm (1.54") of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 0min of daylight.
On the first day of December in Castillon-Debats, France, sunrise is at 08:13 and sunset at 17:23. On the last day of the month, sunrise is at 08:32 and sunset at 17:31 CET.

Sunshine

In Castillon-Debats, the average sunshine in December is 5.4h.

UV index

In Castillon-Debats, France, the average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, the maximum UV index of 3 suggests this advice:
Take necessary precautions - Suggestions to elude sunburn are provided. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.

Frequently asked questions

In Castillon-Debats, in December, the average high-temperature is 10.2°C (50.4°F), and the average low-temperature is 4.4°C (39.9°F). In August, the average heat index (a.k.a. 'real feel', '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 Castillon-Debats is 82%.

In Castillon-Debats, France, in December, during 11 rainfall days, 31mm (1.22") of precipitation is typically accumulated.

In Castillon-Debats, in December, snow falls for 0.8 days, with typically accumulated 3mm (0.12") of snow.

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

The average day length in December in Castillon-Debats, France, is 8h and 59min.

In December, on the first day of the month, sunrise is at 08:13 and sunset at 17:23. On the last day of the month, in Castillon-Debats, sunrise is at 08:32 and sunset at 17:31 CET.

The average sunshine duration in December is 5.4h.

In December, the average daily maximum UV index in Castillon-Debats is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
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
Castillon-Debats, 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
Castillon-Debats, 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
Castillon-Debats, 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
Castillon-Debats, 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
Castillon-Debats, 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
Castillon-Debats, 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
Castillon-Debats, 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
Castillon-Debats, 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
Castillon-Debats, 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
Castillon-Debats, 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
Castillon-Debats, 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
Castillon-Debats, 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
Castillon-Debats, 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).