December weather forecastClais, France
December
Weather in December
December, the first month of the winter in Clais, is still a chilly month, with an average temperature fluctuating between 5.9°C (42.6°F) and 8.7°C (47.7°F).Temperature
The beginning of December records an average high-temperature of a frosty 8.7°C (47.7°F), marking a negligible difference from November's 11°C (51.8°F). An average low-temperature of 5.9°C (42.6°F) is witnessed throughout the month of December, a mere drop from the daytime peak.Humidity
In December, the average relative humidity is 82%.Rainfall
The month with the most rainfall is December, when the rain falls for 16.4 days and typically aggregates up to 51mm (2.01") of precipitation.Snowfall
January through March, November and December are months with snowfall in Clais, France. In Clais, during December, snow falls for 1 days and regularly aggregates up to 4mm (0.16") of snow. Throughout the year, there are 5.5 snowfall days, and 21mm (0.83") of snow is accumulated.Daylight
With an average of 8h and 12min of daylight, December has the shortest days of the year in Clais, France.On the first day of December in Clais, France, sunrise is at 08:30 and sunset at 16:56. On the last day of the month, sunrise is at 08:51 and sunset at 17:03 CET.
Sunshine
The average sunshine in December in Clais is 4.1h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Clais. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 2 during December translates into these guidelines:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Clais, France
- Average high temperature in December: 8.7°C
The warmest month (with the highest average high temperature) is August (19.5°C).
The months with the lowest average high temperature are January and February (7.3°C).
- Average low temperature in December: 5.9°C
The month with the highest average low temperature is August (15.4°C).
The coldest month (with the lowest average low temperature) is February (4.2°C).
Average pressure in December
Clais, France
- Average pressure in December: 1016.7mbar
The month with the highest atmospheric pressure is September (1017.8mbar).
The month with the lowest atmospheric pressure is November (1012.1mbar).
Average wind speed in December
Clais, France
- Average wind speed in December: 27.5km/h
The windiest month (with the highest average wind speed) is December (27.5km/h).
The calmest month (with the lowest average wind speed) is July (17.3km/h).
Average humidity in December
Clais, France
- Average humidity in December: 82%
The month with the highest relative humidity is June (84%).
The month with the lowest relative humidity is September (79%).
Average rainfall in December
Clais, France
- Average rainfall in December: 51mm
The wettest month (with the highest rainfall) is December (51mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in December
Clais, France
- Average rainfall days in December: 16.4 days
The month with the highest number of rainy days is October (16.7 days).
The month with the least rainy days is April (12.4 days).
Average snowfall in December
Clais, France
- Average snowfall in December: 4mm
The month with the highest snowfall is January (11mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Clais, France
- Average snowfall days in December: 1 days
The months with the highest number of snowfall days are January and February (1.9 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
Clais, France
- Average daylight in December: 8h and 12min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in December: 4h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are January and November (Average sunshine: 4h and 0min).
Average sunshine days in December
Clais, France
- Average sunshine days in December: 10.6 days
The month with the most sunshine days is April (14.6 days).
The month with the least sunshine days is November (10.4 days).
Average UV index in December
Clais, 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
Clais, France
- Average cloud cover in December: 60
The months with the most cloud cover are November and December (Cloud cover 60).
The months with the least cloud cover are April, July and August (Cloud cover 39).
Average visibility in December
Clais, France
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
