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
Weather in December
Temperature
During the shift to December, Siviriez records a mild decrease in average high-temperature, moving from a chilly 8.2°C (46.8°F) in November to an icy 4°C (39.2°F). Siviriez throughout December, experiences an average nighttime temperature of -1.7°C (28.9°F).Humidity
In Siviriez, the average relative humidity in December is 84%.Rainfall
In Siviriez, Switzerland, during December, the rain falls for 6.9 days and regularly aggregates up to 23mm (0.91") of precipitation. In Siviriez, during the entire year, the rain falls for 104.2 days and collects up to 215mm (8.46") of precipitation.Snowfall
Months with snowfall in Siviriez are January through May, October through December. In December, in Siviriez, it is snowing for 3.2 days. Throughout December, 14mm (0.55") of snow is accumulated. In Siviriez, Switzerland, during the entire year, snow falls for 18.1 days and aggregates up to 90mm (3.54") of snow.Daylight
December has the shortest days of the year, with an average of 8h and 36min of daylight.On the first day of December in Siviriez, sunrise is at 07:56 and sunset at 16:46. On the last day of the month, sunrise is at 08:16 and sunset at 16:54 CET.
Sunshine
December has the least sunshine of the year in Siviriez, with an average of 5.1h of sunshine.UV index
The months with the lowest UV index in Siviriez are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The average daily UV index of 2 in December transforms into the following instructions:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold in Siviriez?
What is the average humidity in December in Siviriez?
How many days does it rain in December in Siviriez?
How many days does it snow in December in Siviriez?
What is the month with the shortest days in Siviriez?
What is the average length of the day in December in Siviriez?
When are sunrise and sunset in December in Siviriez?
What is the month with the least sunshine in Siviriez?
How long on average sun shines in December in Siviriez?
What are the months with the lowest UV index in Siviriez?
What is the UV index reading in December in Siviriez?
Average temperature in December
Siviriez, Switzerland
- Average high temperature in December: 4°C
The warmest months (with the highest average high temperature) are July and August (22.1°C).
The month with the lowest average high temperature is January (2.5°C).
- Average low temperature in December: -1.7°C
The month with the highest average low temperature is July (11.3°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).
Average pressure in December
Siviriez, 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
Siviriez, Switzerland
- Average wind speed in December: 10.7km/h
The windiest month (with the highest average wind speed) is February (11km/h).
The calmest month (with the lowest average wind speed) is August (6.6km/h).
Average humidity in December
Siviriez, Switzerland
- Average humidity in December: 84%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and July (79%).
Average rainfall in December
Siviriez, Switzerland
- Average rainfall in December: 23mm
The wettest month (with the highest rainfall) is June (26mm).
The driest month (with the least rainfall) is September (8mm).
Average rainfall days in December
Siviriez, Switzerland
- Average rainfall days in December: 6.9 days
The month with the highest number of rainy days is May (12.5 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in December
Siviriez, Switzerland
- Average snowfall in December: 14mm
The month with the highest snowfall is January (25mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Siviriez, Switzerland
- Average snowfall days in December: 3.2 days
The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Siviriez, Switzerland
- Average daylight in December: 8h and 4min
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 36min).
- Average sunshine in December: 5h and 1min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in December
Siviriez, Switzerland
- Average sunshine days in December: 20.7 days
The month with the most sunshine days is October (23.5 days).
The month with the least sunshine days is May (15.8 days).
Average UV index in December
Siviriez, 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, March, November and December (UV index 2).
Average cloud cover in December
Siviriez, Switzerland
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Siviriez, Switzerland
- Average visibility in December: 9km
The months with the highest visibility are March, April, November and December (9km).
The months with the lowest visibility are January, February, May, June, July, August, September and October (8km).
Siviriez, Switzerland
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