December weather forecastSaint-Sulpice, Switzerland
December
Weather in December
The first month of the winter, December, is also an icy month in Saint-Sulpice, Switzerland, with an average temperature varying between 4.9°C (40.8°F) and -0.4°C (31.3°F).Temperature
December brings a slight decrease in the average high-temperature, shifting from a frosty 8.7°C (47.7°F) in November to a wintry 4.9°C (40.8°F). During December, Saint-Sulpice witnesses a consistent average low-temperature of -0.4°C (31.3°F).Humidity
In December, the average relative humidity is 80%.Rainfall
The month with the most rainfall is December, when the rain falls for 13.8 days and typically aggregates up to 103mm (4.06") of precipitation.Snowfall
January through May, October through December are months with snowfall in Saint-Sulpice. December is the month with the most snowfall. Snow falls for 8 days and accumulates 184mm (7.24") of snow.Daylight
With an average of 8h and 42min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 07:57 and sunset at 16:48. On the last day of December, sunrise is at 08:17 and sunset at 16:56 CET.
Sunshine
The month with the least sunshine is December, with an average of 5.7h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Saint-Sulpice, Switzerland
- Average high temperature in December: 4.9°C
The warmest month (with the highest average high temperature) is July (22.2°C).
The month with the lowest average high temperature is January (3.3°C).
- Average low temperature in December: -0.4°C
The month with the highest average low temperature is July (12.6°C).
The coldest months (with the lowest average low temperature) are January and February (-2.2°C).
Average pressure in December
Saint-Sulpice, Switzerland
- Average pressure in December: 1021.1mbar
The month with the highest atmospheric pressure is December (1021.1mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed in December
Saint-Sulpice, Switzerland
- Average wind speed in December: 11.7km/h
The windiest month (with the highest average wind speed) is February (12.1km/h).
The calmest month (with the lowest average wind speed) is August (7km/h).
Average humidity in December
Saint-Sulpice, Switzerland
- Average humidity in December: 80%
The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in December
Saint-Sulpice, Switzerland
- Average rainfall in December: 103mm
The wettest month (with the highest rainfall) is December (103mm).
The driest month (with the least rainfall) is September (38mm).
Average rainfall days in December
Saint-Sulpice, Switzerland
- Average rainfall days in December: 13.8 days
The month with the highest number of rainy days is May (20 days).
The month with the least rainy days is February (11.8 days).
Average snowfall in December
Saint-Sulpice, Switzerland
- Average snowfall in December: 184mm
The month with the highest snowfall is December (184mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Saint-Sulpice, Switzerland
- Average snowfall days in December: 8 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Saint-Sulpice, Switzerland
- Average daylight in December: 8h and 42min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 5h and 42min
The months with the most sunshine are July and August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in December
Saint-Sulpice, Switzerland
- Average sunshine days in December: 13 days
The month with the most sunshine days is October (16 days).
The month with the least sunshine days is June (6.7 days).
Average UV index in December
Saint-Sulpice, Switzerland
- Average UV index in December: 2
The months with the highest UV index are June and July (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-Sulpice, Switzerland
- Average cloud cover in December: 40
The month with the most cloud cover is January (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Saint-Sulpice, Switzerland
- 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).
