December weather forecastConcarneau, France

December

Weather in December

December, the first month of the winter in Concarneau, is also a fresh month, with an average temperature fluctuating between 10.5°C (50.9°F) and 7°C (44.6°F).

Temperature

December denotes a minimal variation in the average high-temperature to a still cool 10.5°C (50.9°F) from November's 12.5°C (54.5°F). During the nights of December, Concarneau maintains an almost steady temperature with an average low of 7°C (44.6°F).

Humidity

December is the most humid month, with an average relative humidity of 85%.

Rainfall

The month with the most rainfall is December, when the rain falls for 19.5 days and typically aggregates up to 95mm (3.74") of precipitation.

Snowfall

January, February and December are months with snowfall. December is the first month it typically snows in Concarneau. Throughout December, in the average 0.6 snowfall days, it receives 1mm (0.04") of snow. In Concarneau, during the entire year, snow falls for 2.1 days and aggregates up to 13mm (0.51") of snow.

Sea temperature

In December, the average sea temperature is 12.6°C (54.7°F).
Note: Caution: 12.6°C (54.7°F) temperatures below 10°C (50°F) during swimming can result in intense cold shock and quickened breathing.

Daylight

The month with the shortest days in Concarneau is December, with an average of 8h and 30min of daylight.
On the first day of December in Concarneau, sunrise is at 08:44 and sunset at 17:25. On the last day of the month, sunrise is at 09:04 and sunset at 17:32 CET.

Sunshine

With an average of 3.4h of sunshine, December has the least sunshine of the year.

UV index

In December, the average daily maximum UV index in Concarneau is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In December, a daily UV index of 3 turns into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.

Frequently asked questions

The average high-temperature, in December, in Concarneau, is 10.5°C (50.9°F), while the average low-temperature is 7°C (44.6°F).

December is the most humid month, with an average relative humidity of 85%.

The average relative humidity in December in Concarneau is 85%.

December is the month with the most rainfall in Concarneau. Rain falls for 19.5 days and accumulates 95mm (3.74") of precipitation.

In Concarneau, in December, it is raining for 19.5 days, with typically 95mm (3.74") of accumulated precipitation.

December is the first month it typically snows in Concarneau, France. Throughout December, in the average 0.6 snowfall days, it receives 1mm (0.04") of snow.

In December, the average sea temperature is 12.6°C (54.7°F). Swimming in 12.6°C (54.7°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

December has the shortest days of the year in Concarneau, France, with an average of 8h and 30min of daylight.

In December, the average day length is 8h and 28min.

On the first day of December in Concarneau, France, sunrise is at 08:44 and sunset at 17:25. On the last day of the month, sunrise is at 09:04 and sunset at 17:32 CET.

December has the least sunshine of the year, with an average of 3.4h of sunshine.

The average sunshine duration in December in Concarneau, France, is 3.4h.

The average daily maximum UV index in December in Concarneau, France, is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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 sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Concarneau, France

  • Average high temperature in December: 10.5°C

The warmest month (with the highest average high temperature) is July (21.1°C).
The month with the lowest average high temperature is January (9.7°C).

  • Average low temperature in December: 7°C

The month with the highest average low temperature is August (13.9°C).
The coldest month (with the lowest average low temperature) is February (5.1°C).

Average pressure in December
Concarneau, France

  • Average pressure in December: 1018mbar

The month with the highest atmospheric pressure is September (1018.5mbar).
The month with the lowest atmospheric pressure is November (1012.5mbar).

Average wind speed in December
Concarneau, France

  • Average wind speed in December: 20.4km/h

The windiest month (with the highest average wind speed) is January (20.6km/h).
The calmest month (with the lowest average wind speed) is August (14km/h).

Average humidity in December
Concarneau, France

  • Average humidity in December: 85%

The month with the highest relative humidity is December (85%).
The month with the lowest relative humidity is April (79%).

Average rainfall in December
Concarneau, France

  • Average rainfall in December: 95mm

The wettest month (with the highest rainfall) is December (95mm).
The driest month (with the least rainfall) is September (26mm).

Average rainfall days in December
Concarneau, France

  • Average rainfall days in December: 19.5 days

The month with the highest number of rainy days is January (20.4 days).
The month with the least rainy days is September (12.2 days).

Average snowfall in December
Concarneau, France

  • Average snowfall in December: 1mm

The month with the highest snowfall is January (8mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).

Average snowfall days in December
Concarneau, France

  • Average snowfall days in December: 0.6 days

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

  • Average sea temperature in December: 12.6°C

The best month for swimming (with the highest average sea temperature) is August (17.4°C).
The coldest months (with the lowest average sea temperature) are February and March (10.1°C).

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

  • Average daylight in December: 8h and 30min

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 30min).

  • Average sunshine in December: 3h and 24min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).

Average sunshine days in December
Concarneau, France

  • Average sunshine days in December: 8.5 days

The month with the most sunshine days is September (15 days).
The month with the least sunshine days is November (7.5 days).

Average UV index in December
Concarneau, France

  • Average UV index in December: 3

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

Average cloud cover in December
Concarneau, France

  • Average cloud cover in December: 59

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 40).

Average visibility in December
Concarneau, 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).