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 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
December
Weather in December
Temperature
The transition into December subtly indicates a reduction in the average high-temperature, down to a still chilly 6.4°C (43.5°F) from November's 9.7°C (49.5°F). Sillans, in the month of December, anticipates a consistent average low-temperature of 0°C (32°F).Humidity
January, November and December, with an average relative humidity of 85%, are the most humid months.Rainfall
In Sillans, in December, during 12.1 rainfall days, 61mm (2.4") of precipitation is typically accumulated. In Sillans, France, during the entire year, the rain falls for 161.5 days and collects up to 601mm (23.66") of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Sillans, during December, snow falls for 6 days and regularly aggregates up to 65mm (2.56") of snow. In Sillans, during the entire year, snow falls for 30.2 days and aggregates up to 375mm (14.76") of snow.Daylight
The month with the shortest days in Sillans is December, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 07:58 and sunset at 16:57. On the last day of December, in Sillans, France, sunrise is at 08:17 and sunset at 17:05 CET.
Sunshine
The average sunshine in December is 4.9h.UV index
The months with the lowest UV index in Sillans 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 health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 2 in December translates into this advice:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in Sillans in December?
What are the most humid months in Sillans?
What is the average humidity in December in Sillans?
How much does it rain in Sillans in December?
How much does it snow in Sillans in December?
What is the month with the shortest days in Sillans?
How many hours of daylight does Sillans have in December?
What time are sunrise and sunset in December in Sillans?
How many hours of sunshine does Sillans have in December?
When is the lowest UV index in Sillans?
What is the UV index intensity in December in Sillans?
Average temperature in December
Sillans, France
- Average high temperature in December: 6.4°C
The warmest month (with the highest average high temperature) is August (25.1°C).
The month with the lowest average high temperature is January (4.8°C).
- Average low temperature in December: 0°C
The month with the highest average low temperature is July (13.2°C).
The coldest month (with the lowest average low temperature) is January (-1.2°C).
Average pressure in December
Sillans, France
- Average pressure in December: 1021mbar
The month with the highest atmospheric pressure is December (1021mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).
Average wind speed in December
Sillans, France
- Average wind speed in December: 9.6km/h
The windiest month (with the highest average wind speed) is February (10.5km/h).
The calmest month (with the lowest average wind speed) is September (7.7km/h).
Average humidity in December
Sillans, France
- Average humidity in December: 85%
The months with the highest relative humidity are January, November and December (85%).
The month with the lowest relative humidity is August (74%).
Average rainfall in December
Sillans, France
- Average rainfall in December: 61mm
The wettest month (with the highest rainfall) is November (67mm).
The driest month (with the least rainfall) is September (34mm).
Average rainfall days in December
Sillans, France
- Average rainfall days in December: 12.1 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is August (11 days).
Average snowfall in December
Sillans, France
- Average snowfall in December: 65mm
The month with the highest snowfall is November (92mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Sillans, France
- Average snowfall days in December: 6 days
The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sillans, France
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in December
Sillans, France
- Average sunshine days in December: 14 days
The month with the most sunshine days is August (16.8 days).
The month with the least sunshine days is May (9.5 days).
Average UV index in December
Sillans, 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
Sillans, France
- Average cloud cover in December: 51
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in December
Sillans, France
- Average visibility in December: 8km
The months with the highest visibility are February, March, April, July and August (9km).
The months with the lowest visibility are January, May, June, September, October, November and December (8km).
