December weather forecastAltstätten, Switzerland
December
Weather in December
The first month of the winter, December, is still a cold month in Altstätten, Switzerland, with an average temperature varying between 4.1°C (39.4°F) and -1.4°C (29.5°F).Temperature
Altstätten's transition into December involves a gentle shift in temperature, receding from a frosty 8.6°C (47.5°F) in November to a cold 4.1°C (39.4°F). Throughout December nights, Altstätten experiences a consistent temperature average of -1.4°C (29.5°F).Humidity
The average relative humidity in December in Altstätten is 82%.Rainfall
In Altstätten, in December, during 11.7 rainfall days, 97mm (3.82") of precipitation is typically accumulated. Throughout the year, in Altstätten, there are 177.8 rainfall days, and 1006mm (39.61") of precipitation is accumulated.Snowfall
Months with snowfall in Altstätten are January through May, October through December. In Altstätten, in December, during 11.2 snowfall days, 261mm (10.28") of snow is typically accumulated. Throughout the year, in Altstätten, there are 55.7 snowfall days, and 1345mm (52.95") of snow is accumulated.Daylight
The month with the shortest days in Altstätten is December, with an average of 8h and 30min of daylight.On the first day of December in Altstätten, sunrise is at 07:48 and sunset at 16:33. On the last day of the month, sunrise is at 08:08 and sunset at 16:41 CET.
Sunshine
February and December, with an average of 5.1h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index in Altstätten, Switzerland, 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 threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index, 2 during December, leads to the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Altstätten, Switzerland
- Average high temperature in December: 4.1°C
The warmest month (with the highest average high temperature) is July (23.1°C).
The month with the lowest average high temperature is January (2.9°C).
- Average low temperature in December: -1.4°C
The months with the highest average low temperature are July and August (12.6°C).
The coldest month (with the lowest average low temperature) is January (-2.9°C).
Average pressure in December
Altstätten, Switzerland
- Average pressure in December: 1020.8mbar
The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).
Average wind speed in December
Altstätten, Switzerland
- Average wind speed in December: 8.6km/h
The windiest month (with the highest average wind speed) is March (9km/h).
The calmest month (with the lowest average wind speed) is August (6.7km/h).
Average humidity in December
Altstätten, Switzerland
- Average humidity in December: 82%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (75%).
Average rainfall in December
Altstätten, Switzerland
- Average rainfall in December: 97mm
The wettest month (with the highest rainfall) is August (126mm).
The driest month (with the least rainfall) is April (52mm).
Average rainfall days in December
Altstätten, Switzerland
- Average rainfall days in December: 11.7 days
The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is February (9.5 days).
Average snowfall in December
Altstätten, Switzerland
- Average snowfall in December: 261mm
The month with the highest snowfall is January (353mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Altstätten, Switzerland
- Average snowfall days in December: 11.2 days
The month with the highest number of snowfall days is February (12.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Altstätten, 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 months with the least sunshine are February and December (Average sunshine: 5h and 6min).
Average sunshine days in December
Altstätten, Switzerland
- Average sunshine days in December: 12.2 days
The month with the most sunshine days is October (17.2 days).
The month with the least sunshine days is July (6.6 days).
Average UV index in December
Altstätten, 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
Altstätten, Switzerland
- Average cloud cover in December: 46
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Altstätten, Switzerland
- Average visibility in December: 8km
The months with the highest visibility are April, May, June, July, August, October and November (9km).
The months with the lowest visibility are January, February, March, September and December (8km).
