December weather forecastAscona, Switzerland
December
Weather in December
December, the first month of the winter in Ascona, is also a wintry month, with temperature in the range of an average low of -4.6°C (23.7°F) and an average high of 2°C (35.6°F).Temperature
Transition into December subtly marks a drop in the average high-temperature, moderately moving from a wintry 5.5°C (41.9°F) in November to a still cold 2°C (35.6°F). Ascona's nights in December experience an average temperature drop to a subzero cold -4.6°C (23.7°F).Humidity
In Ascona, the average relative humidity in December is 78%.Rainfall
In Ascona, during December, the rain falls for 8.6 days and regularly aggregates up to 70mm (2.76") of precipitation. Throughout the year, there are 200.8 rainfall days, and 1253mm (49.33") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Ascona, during December, snow falls for 12.2 days and regularly aggregates up to 260mm (10.24") of snow. In Ascona, during the entire year, snow falls for 63.5 days and aggregates up to 1500mm (59.06") 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 December, sunrise is at 07:47 and sunset at 16:40. On the last day of the month, sunrise is at 08:07 and sunset at 16:48 CET.
Sunshine
In December, the average sunshine is 6.3h.UV index
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ascona, Switzerland
- Average high temperature in December: 2°C
The warmest month (with the highest average high temperature) is July (21.2°C).
The month with the lowest average high temperature is January (0.9°C).
- Average low temperature in December: -4.6°C
The month with the highest average low temperature is August (10.6°C).
The coldest month (with the lowest average low temperature) is January (-5.9°C).
Average pressure in December
Ascona, Switzerland
- Average pressure in December: 1020.6mbar
The month with the highest atmospheric pressure is December (1020.6mbar).
The month with the lowest atmospheric pressure is April (1015.1mbar).
Average wind speed in December
Ascona, Switzerland
- Average wind speed in December: 7.2km/h
The windiest month (with the highest average wind speed) is February (7.4km/h).
The calmest month (with the lowest average wind speed) is November (5.8km/h).
Average humidity in December
Ascona, Switzerland
- Average humidity in December: 78%
The month with the highest relative humidity is November (83%).
The month with the lowest relative humidity is July (76%).
Average rainfall in December
Ascona, Switzerland
- Average rainfall in December: 70mm
The wettest month (with the highest rainfall) is November (164mm).
The driest month (with the least rainfall) is January (45mm).
Average rainfall days in December
Ascona, Switzerland
- Average rainfall days in December: 8.6 days
The month with the highest number of rainy days is July (25.5 days).
The months with the least rainy days are February and December (8.6 days).
Average snowfall in December
Ascona, Switzerland
- Average snowfall in December: 260mm
The month with the highest snowfall is November (334mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Ascona, Switzerland
- Average snowfall days in December: 12.2 days
The month with the highest number of snowfall days is January (14.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ascona, Switzerland
- Average daylight in December: 8h and 42min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 6h and 18min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is November (Average sunshine: 5h and 24min).
Average sunshine days in December
Ascona, Switzerland
- Average sunshine days in December: 13.8 days
The month with the most sunshine days is October (14.9 days).
The month with the least sunshine days is June (3.1 days).
Average UV index in December
Ascona, 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, October, November and December (UV index 2).
Average cloud cover in December
Ascona, Switzerland
- Average cloud cover in December: 31
The month with the most cloud cover is November (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in December
Ascona, Switzerland
- Average visibility in December: 9km
The months with the highest visibility are April, May, June, July, August and December (9km).
The months with the lowest visibility are January, February, March, September, October and November (8km).





