Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The average high-temperature during December registers at a chilly 7.4°C (45.3°F), closely corresponding to the preceding month. An average low-temperature of 3.6°C (38.5°F) is witnessed throughout the month of December in Saint-Valery-sur-Somme, a mere drop from the daytime peak.Humidity
The months with the highest humidity are January, November and December, with an average relative humidity of 87%.Rainfall
The month with the most rainfall in Saint-Valery-sur-Somme is December, when the rain falls for 16.5 days and typically aggregates up to 71mm (2.8") of precipitation.Snowfall
Months with snowfall in Saint-Valery-sur-Somme are January through March, November and December. In Saint-Valery-sur-Somme, during December, snow falls for 2.2 days and regularly aggregates up to 22mm (0.87") of snow. In Saint-Valery-sur-Somme, during the entire year, snow falls for 9.6 days and aggregates up to 71mm (2.8") of snow.Sea temperature
In Saint-Valery-sur-Somme, in December, the average water temperature is 11.4°C (52.5°F).Note: Entering waters of 11.4°C (52.5°F) is life-endangering. A mere moment in 13°C (55.4°F) waters feels piercing cold, and below 10°C (50°F) it can lead to immediate cold shock and cessation of breathing control, depending on body resilience.
Daylight
With an average of 8h and 6min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 08:31 and sunset at 16:53. On the last day of the month, sunrise is at 08:52 and sunset at 17:00 CET.
Sunshine
In December, the average sunshine in Saint-Valery-sur-Somme is 4h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 suggests these recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Frequently asked questions
What are December temperatures in Saint-Valery-sur-Somme?
What is the most humid month in Saint-Valery-sur-Somme?
What is the average humidity in December in Saint-Valery-sur-Somme?
What is the rainiest month in Saint-Valery-sur-Somme?
How many days does it rain in December in Saint-Valery-sur-Somme?
How much does it snow in Saint-Valery-sur-Somme in December?
What is the water temperature in December in Saint-Valery-sur-Somme?
What is the month with the shortest days in Saint-Valery-sur-Somme?
How many hours of daylight does Saint-Valery-sur-Somme have in December?
When is the sunrise / sunset in December in Saint-Valery-sur-Somme?
How many hours of sunshine does Saint-Valery-sur-Somme have in December?
When is the lowest UV index in Saint-Valery-sur-Somme?
What is the UV index reading in December in Saint-Valery-sur-Somme?
Average temperature in December
Saint-Valery-sur-Somme, France
- Average high temperature in December: 7.4°C
The warmest month (with the highest average high temperature) is August (21.7°C).
The month with the lowest average high temperature is January (6.3°C).
- Average low temperature in December: 3.6°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).
Average pressure in December
Saint-Valery-sur-Somme, France
- Average pressure in December: 1016.6mbar
The month with the highest atmospheric pressure is September (1017.7mbar).
The month with the lowest atmospheric pressure is November (1012.2mbar).
Average wind speed in December
Saint-Valery-sur-Somme, France
- Average wind speed in December: 20.3km/h
The windiest month (with the highest average wind speed) is December (20.3km/h).
The calmest month (with the lowest average wind speed) is August (13.4km/h).
Average humidity in December
Saint-Valery-sur-Somme, France
- Average humidity in December: 87%
The months with the highest relative humidity are January, November and December (87%).
The month with the lowest relative humidity is August (78%).
Average rainfall in December
Saint-Valery-sur-Somme, France
- Average rainfall in December: 71mm
The wettest month (with the highest rainfall) is December (71mm).
The driest month (with the least rainfall) is April (29mm).
Average rainfall days in December
Saint-Valery-sur-Somme, France
- Average rainfall days in December: 16.5 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is April (13.5 days).
Average snowfall in December
Saint-Valery-sur-Somme, France
- Average snowfall in December: 22mm
The month with the highest snowfall is January (29mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Saint-Valery-sur-Somme, France
- Average snowfall days in December: 2.2 days
The month with the highest number of snowfall days is February (3.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in December
Saint-Valery-sur-Somme, France
- Average sea temperature in December: 11.4°C
The best months for swimming (with the highest average sea temperature) are August and September (17.9°C).
The coldest month (with the lowest average sea temperature) is March (7.9°C).
Average daylight in December /
Average sunshine in December
Saint-Valery-sur-Somme, France
- Average daylight in December: 8h and 1min
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 6min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Saint-Valery-sur-Somme, France
- Average sunshine days in December: 11.1 days
The months with the most sunshine days are March and April (13.7 days).
The month with the least sunshine days is November (10.1 days).
Average UV index in December
Saint-Valery-sur-Somme, 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-Valery-sur-Somme, France
- Average cloud cover in December: 59
The months with the most cloud cover are January, November and December (Cloud cover 59).
The months with the least cloud cover are April and August (Cloud cover 40).
Average visibility in December
Saint-Valery-sur-Somme, 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).
Saint-Valery-sur-Somme, France
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