December weather forecastAu, Switzerland
December weather for Au, Switzerland: The month with the shortest days is December, with an average of 8h and 30min of daylight. In December, on the first day of the month, sunrise is at 07:48 and sunset at 16:32.
December
Weather in December
December, the first month of the winter in Au, is also a wintry month, with temperature in the range of an average high of 3.1°C (37.6°F) and an average low of -2.7°C (27.1°F).Temperature
The shift from November to December coincides with a small decrease in the average high-temperature, down to a cold 3.1°C (37.6°F) from a frosty 7.9°C (46.2°F). Au, during the month of December, experiences an average low-temperature of -2.7°C (27.1°F).Humidity
In Au, the average relative humidity in December is 83%.Rainfall
In Au, in December, it is raining for 12 days, with typically 94mm (3.7") of accumulated precipitation. Throughout the year, in Au, there are 174 rainfall days, and 955mm (37.6") of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. In December, in Au, it is snowing for 9.6 days. Throughout December, 248mm (9.76") of snow is accumulated. Throughout the year, in Au, there are 49.1 snowfall days, and 1273mm (50.12") of snow is accumulated.Daylight
With an average of 8h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 07:48 and sunset at 16:32. On the last day of December, sunrise is at 08:08 and sunset at 16:40 CET.
Sunshine
In December, the average sunshine in Au is 5.1h.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 estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: A typical high UV index of 2 in December suggests the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Au, Switzerland
- Average high temperature in December: 3.1°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 (1.8°C).
- Average low temperature in December: -2.7°C
The month with the highest average low temperature is August (11.2°C).
The coldest month (with the lowest average low temperature) is February (-4.8°C).
Average pressure in December
Au, Switzerland
- Average pressure in December: 1020.7mbar
The month with the highest atmospheric pressure is December (1020.7mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).
Average wind speed in December
Au, Switzerland
- Average wind speed in December: 8.2km/h
The windiest month (with the highest average wind speed) is March (8.3km/h).
The calmest month (with the lowest average wind speed) is August (6.5km/h).
Average humidity in December
Au, Switzerland
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are July and August (76%).
Average rainfall in December
Au, Switzerland
- Average rainfall in December: 94mm
The wettest month (with the highest rainfall) is August (110mm).
The driest month (with the least rainfall) is April (47mm).
Average rainfall days in December
Au, Switzerland
- Average rainfall days in December: 12 days
The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is February (9 days).
Average snowfall in December
Au, Switzerland
- Average snowfall in December: 248mm
The month with the highest snowfall is January (376mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in December
Au, Switzerland
- Average snowfall days in December: 9.6 days
The month with the highest number of snowfall days is January (11.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Au, Switzerland
- Average daylight in December: 8h and 30min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in December: 5h and 6min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in December
Au, Switzerland
- Average sunshine days in December: 13.1 days
The month with the most sunshine days is October (17.7 days).
The month with the least sunshine days is June (7.7 days).
Average UV index in December
Au, 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
Au, Switzerland
- Average cloud cover in December: 46
The months with the most cloud cover are January and February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Au, Switzerland
- Average visibility in December: 8km
The months with the highest visibility are April, June, July and August (9km).
The months with the lowest visibility are January and February (7km).
