December weather forecastChâteaugiron, France

December

Weather in December

December, the first month of the winter in Châteaugiron, is still a chilly month, with temperature in the range of an average low of 4.2°C (39.6°F) and an average high of 9.1°C (48.4°F).

Temperature

December's onset records an average high-temperature of a frosty 9.1°C (48.4°F), a near match to November's 11.9°C (53.4°F). Châteaugiron encounters a small divergence from daytime high temperatures, averaging a low-temperature of 4.2°C (39.6°F) during December nights.

Humidity

With an average relative humidity of 88%, December is the most humid month.

Rainfall

In Châteaugiron, in December, it is raining for 12.2 days, with typically 34mm (1.34") of accumulated precipitation. Throughout the year, there are 150.1 rainfall days, and 330mm (12.99") of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. The months with the most snowfall in Châteaugiron are February through April and December, with an average 2mm (0.08") of accumulated snow.

Daylight

The month with the shortest days in Châteaugiron is December, with an average of 8h and 24min of daylight.
On the first day of the month, sunrise is at 08:35 and sunset at 17:14. On the last day of December, sunrise is at 08:55 and sunset at 17:22 CET.

Sunshine

In December, the average sunshine in Châteaugiron is 4.6h.

UV index

The months with the lowest UV index in Châteaugiron are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, the maximum UV index of 2 suggests these recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.

Frequently asked questions

In Châteaugiron, 9.1°C (48.4°F) is the average high-temperature and 4.2°C (39.6°F) is the average low-temperature during December.

December is the most humid month in Châteaugiron, France, with an average relative humidity of 88%.

The average relative humidity in December in Châteaugiron is 88%.

In Châteaugiron, France, in December, during 12.2 rainfall days, 34mm (1.34") of precipitation is typically accumulated.

The months with the most snowfall in Châteaugiron are February through April and December, with an average 2mm (0.08") of accumulated snow.

In Châteaugiron, France, in December, during 0.5 snowfall days, 2mm (0.08") of snow is typically accumulated.

December has the shortest days of the year in Châteaugiron, with an average of 8h and 24min of daylight.

In December, the average day length in Châteaugiron is 8h and 27min.

On the first day of December in Châteaugiron, France, sunrise is at 08:35 and sunset at 17:14. On the last day of the month, sunrise is at 08:55 and sunset at 17:22 CET.

In December, the average sunshine duration in Châteaugiron, France, is 4.6h.

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

The average daily maximum UV index in December in Châteaugiron is 2. A UV Index reading of 2, and below, represents a low health threat from unsafe 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
Châteaugiron, France

  • Average high temperature in December: 9.1°C

The warmest month (with the highest average high temperature) is August (23.1°C).
The month with the lowest average high temperature is January (8.4°C).

  • Average low temperature in December: 4.2°C

The month with the highest average low temperature is July (12.8°C).
The coldest month (with the lowest average low temperature) is February (2.3°C).

Average pressure in December
Châteaugiron, France

  • Average pressure in December: 1018.4mbar

The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is November (1012.9mbar).

Average wind speed in December
Châteaugiron, France

  • Average wind speed in December: 16.8km/h

The windiest month (with the highest average wind speed) is February (17.6km/h).
The calmest month (with the lowest average wind speed) is August (11.7km/h).

Average humidity in December
Châteaugiron, France

  • Average humidity in December: 88%

The month with the highest relative humidity is December (88%).
The months with the lowest relative humidity are July, August and September (78%).

Average rainfall in December
Châteaugiron, France

  • Average rainfall in December: 34mm

The wettest month (with the highest rainfall) is June (39mm).
The driest month (with the least rainfall) is September (12mm).

Average rainfall days in December
Châteaugiron, France

  • Average rainfall days in December: 12.2 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is September (8.4 days).

Average snowfall in December
Châteaugiron, France

  • Average snowfall in December: 2mm

The months with the highest snowfall are February, March, April and December (2mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in December
Châteaugiron, France

  • Average snowfall days in December: 0.5 days

The month with the highest number of snowfall days is February (0.8 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
Châteaugiron, France

  • Average daylight in December: 8h and 24min

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 24min).

  • Average sunshine in December: 4h and 36min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in December
Châteaugiron, France

  • Average sunshine days in December: 15.9 days

The month with the most sunshine days is September (18.5 days).
The month with the least sunshine days is May (12.1 days).

Average UV index in December
Châteaugiron, France

  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Châteaugiron, France

  • Average cloud cover in December: 55

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 41).

Average visibility in December
Châteaugiron, France

  • Average visibility in December: 9km

The months with the highest visibility are January, February, March, April, June, July, October, November and December (9km).
The months with the lowest visibility are May, August and September (8km).