December weather forecastSaint-Omer, France
December
Weather in December
December, the first month of the winter in Saint-Omer, is also a frosty month, with an average temperature varying between 5.3°C (41.5°F) and 8.1°C (46.6°F).Temperature
Saint-Omer ushers in December with an average high-temperature of a frosty 8.1°C (46.6°F), showing a close resemblance to the previous month. Saint-Omer maintains an average low-temperature of 5.3°C (41.5°F) throughout December's nights.Humidity
The months with the highest humidity in Saint-Omer are January and December, with an average relative humidity of 83%.Rainfall
The month with the most rainfall in Saint-Omer is December, when the rain falls for 17.2 days and typically aggregates up to 59mm (2.32") of precipitation.Snowfall
January through March, November and December are months with snowfall in Saint-Omer. In Saint-Omer, in December, during 1.7 snowfall days, 12mm (0.47") of snow is typically accumulated. In Saint-Omer, during the entire year, snow falls for 8.7 days and aggregates up to 63mm (2.48") of snow.Daylight
December has the shortest days of the year, with an average of 8h and 0min of daylight.On the first day of December, sunrise is at 08:31 and sunset at 16:48. On the last day of the month, sunrise is at 08:52 and sunset at 16:55 CET.
Sunshine
In December, the average sunshine is 4.2h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Saint-Omer. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In December, an average UV index of 2 transforms into the following instructions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Saint-Omer, France
- Average high temperature in December: 8.1°C
The warmest month (with the highest average high temperature) is August (21°C).
The month with the lowest average high temperature is January (6.8°C).
- Average low temperature in December: 5.3°C
The month with the highest average low temperature is August (15.4°C).
The coldest month (with the lowest average low temperature) is January (3.6°C).
Average pressure in December
Saint-Omer, France
- Average pressure in December: 1015.5mbar
The month with the highest atmospheric pressure is September (1017.4mbar).
The month with the lowest atmospheric pressure is November (1011.6mbar).
Average wind speed in December
Saint-Omer, France
- Average wind speed in December: 24km/h
The windiest month (with the highest average wind speed) is December (24km/h).
The calmest month (with the lowest average wind speed) is July (16.6km/h).
Average humidity in December
Saint-Omer, France
- Average humidity in December: 83%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is August (75%).
Average rainfall in December
Saint-Omer, France
- Average rainfall in December: 59mm
The wettest month (with the highest rainfall) is December (59mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in December
Saint-Omer, France
- Average rainfall days in December: 17.2 days
The month with the highest number of rainy days is November (18.3 days).
The month with the least rainy days is April (11.6 days).
Average snowfall in December
Saint-Omer, France
- Average snowfall in December: 12mm
The month with the highest snowfall is January (28mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Saint-Omer, France
- Average snowfall days in December: 1.7 days
The month with the highest number of snowfall days is January (2.9 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
Saint-Omer, France
- Average daylight in December: 8h and 0min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in December: 4h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Saint-Omer, France
- Average sunshine days in December: 10 days
The month with the most sunshine days is April (16.5 days).
The month with the least sunshine days is November (9.1 days).
Average UV index in December
Saint-Omer, 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
Saint-Omer, France
- Average cloud cover in December: 60
The month with the most cloud cover is December (Cloud cover 60).
The month with the least cloud cover is April (Cloud cover 38).
Average visibility in December
Saint-Omer, France
- Average visibility in December: 9km
The months with the highest visibility are March, April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, November and December (9km).
