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 start of December marks an average high-temperature of a chilly 9.8°C (49.6°F), hardly distinguishable from the conditions in November. During December, Saint-Lunaire's nighttime temperatures demonstrate a subtle cooling from daytime highs, stabilizing at 6.7°C (44.1°F).Humidity
The months with the highest humidity are January and December, with an average relative humidity of 83%.Rainfall
In Saint-Lunaire, during December, the rain falls for 17.7 days and regularly aggregates up to 58mm (2.28") of precipitation. Throughout the year, there are 187.9 rainfall days, and 541mm (21.3") of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. The month with the most snowfall is December, when snow falls for 0.8 days and typically aggregates up to 9mm (0.35") of snow.Sea temperature
In Saint-Lunaire, in December, the average water temperature is 11.9°C (53.4°F).Note: Unprotected swimming in 11.9°C (53.4°F) is dangerous due to potential cold shock. Especially when temperatures go below 10°C (50°F), leading to hyperventilation.
Daylight
With an average of 8h and 24min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 08:40 and sunset at 17:15. On the last day of December, in Saint-Lunaire, sunrise is at 09:00 and sunset at 17:22 CET.
Sunshine
The average sunshine in December in Saint-Lunaire is 4h.UV index
In December, the average daily maximum UV index in Saint-Lunaire is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 3 during December translates into the following directions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
What are December temperatures in Saint-Lunaire?
What is the most humid month in Saint-Lunaire?
What is the average humidity in December in Saint-Lunaire?
How many days does it rain in December in Saint-Lunaire?
When does it snow the most in Saint-Lunaire?
How many days does it snow in December in Saint-Lunaire?
How cold is the water in December in Saint-Lunaire?
What is the month with the shortest days in Saint-Lunaire?
What is the average length of the day in December in Saint-Lunaire?
What time are sunrise and sunset in December in Saint-Lunaire?
How long on average sun shines in December in Saint-Lunaire?
What is the UV index intensity in December in Saint-Lunaire?
Average temperature in December
Saint-Lunaire, France
- Average high temperature in December: 9.8°C
The warmest month (with the highest average high temperature) is August (20.7°C).
The month with the lowest average high temperature is January (8.8°C).
- Average low temperature in December: 6.7°C
The month with the highest average low temperature is August (14.6°C).
The coldest month (with the lowest average low temperature) is February (4.8°C).
Average pressure in December
Saint-Lunaire, France
- Average pressure in December: 1017.7mbar
The month with the highest atmospheric pressure is September (1018.2mbar).
The month with the lowest atmospheric pressure is November (1012.4mbar).
Average wind speed in December
Saint-Lunaire, 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 August (15.2km/h).
Average humidity in December
Saint-Lunaire, 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 September (78%).
Average rainfall in December
Saint-Lunaire, France
- Average rainfall in December: 58mm
The wettest month (with the highest rainfall) is November (67mm).
The driest months (with the least rainfall) are July and September (26mm).
Average rainfall days in December
Saint-Lunaire, France
- Average rainfall days in December: 17.7 days
The month with the highest number of rainy days is November (18.5 days).
The month with the least rainy days is September (12.8 days).
Average snowfall in December
Saint-Lunaire, France
- Average snowfall in December: 9mm
The month with the highest snowfall is December (9mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Saint-Lunaire, France
- Average snowfall days in December: 0.8 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in December
Saint-Lunaire, France
- Average sea temperature in December: 11.9°C
The best month for swimming (with the highest average sea temperature) is September (18.2°C).
The coldest month (with the lowest average sea temperature) is February (8.7°C).
Average daylight in December /
Average sunshine in December
Saint-Lunaire, France
- Average daylight in December: 8h and 2min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Saint-Lunaire, France
- Average sunshine days in December: 10.1 days
The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is January (8.6 days).
Average UV index in December
Saint-Lunaire, France
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January and February (UV index 2).
Average cloud cover in December
Saint-Lunaire, France
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 38).
Average visibility in December
Saint-Lunaire, France
- Average visibility in December: 10km
The months with the highest visibility are February, March, April, June, July, August, September, October and December (10km).
The months with the lowest visibility are January, May and November (9km).
Saint-Lunaire, France
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