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
December
Weather in December
Temperature
The transition into December involves a small decrease in the average high-temperature, dipping slightly from a frosty 8.6°C (47.5°F) in November to an icy 4.8°C (40.6°F). Sissach temperatures generally rest at a low of -0.5°C (31.1°F) during the December nights.Humidity
In December, the average relative humidity is 86%.Rainfall
In Sissach, in December, during 15.3 rainfall days, 85mm (3.35") of precipitation is typically accumulated. In Sissach, during the entire year, the rain falls for 196.7 days and collects up to 822mm (32.36") of precipitation.Snowfall
January through May, October through December are months with snowfall in Sissach, Switzerland. The month with the most snowfall is December, when snow falls for 7.2 days and typically aggregates up to 88mm (3.46") of snow.Daylight
December has the shortest days of the year, with an average of 8h and 30min of daylight.On the first day of the month, sunrise is at 07:55 and sunset at 16:39. On the last day of December, sunrise is at 08:16 and sunset at 16:47 CET.
Sunshine
The month with the least sunshine in Sissach is December, with an average of 4.6h of sunshine.UV index
In December, the average daily maximum UV index in Sissach is 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A typical high UV index of 2 in December suggests the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Sissach?
What is the average humidity in December in Sissach?
How much does it rain in Sissach in December?
What is the snowiest month in Sissach?
How many days does it snow in December in Sissach?
What is the month with the shortest days in Sissach?
How many hours of daylight does Sissach have in December?
When is the sunrise / sunset in December in Sissach?
What is the month with the least sunshine in Sissach?
How long on average sun shines in December in Sissach?
How high is the UV index in December in Sissach?
Average temperature in December
Sissach, Switzerland
- Average high temperature in December: 4.8°C
The warmest months (with the highest average high temperature) are July and August (23.8°C).
The month with the lowest average high temperature is January (3.4°C).
- Average low temperature in December: -0.5°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 (-2.3°C).
Average pressure in December
Sissach, Switzerland
- Average pressure in December: 1020.7mbar
The month with the highest atmospheric pressure is December (1020.7mbar).
The months with the lowest atmospheric pressure are April and November (1015.7mbar).
Average wind speed in December
Sissach, Switzerland
- Average wind speed in December: 9.1km/h
The windiest month (with the highest average wind speed) is March (9.4km/h).
The calmest month (with the lowest average wind speed) is August (6.4km/h).
Average humidity in December
Sissach, Switzerland
- Average humidity in December: 86%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
Sissach, Switzerland
- Average rainfall in December: 85mm
The wettest month (with the highest rainfall) is June (100mm).
The driest month (with the least rainfall) is September (41mm).
Average rainfall days in December
Sissach, Switzerland
- Average rainfall days in December: 15.3 days
The month with the highest number of rainy days is May (22.3 days).
The month with the least rainy days is October (13 days).
Average snowfall in December
Sissach, Switzerland
- Average snowfall in December: 88mm
The month with the highest snowfall is December (88mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Sissach, Switzerland
- Average snowfall days in December: 7.2 days
The month with the highest number of snowfall days is January (9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sissach, Switzerland
- Average daylight in December: 8h and 3min
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: 4h and 4min
The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in December
Sissach, Switzerland
- Average sunshine days in December: 11.1 days
The month with the most sunshine days is October (15 days).
The month with the least sunshine days is June (6.1 days).
Average UV index in December
Sissach, Switzerland
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in December
Sissach, Switzerland
- Average cloud cover in December: 54
The months with the most cloud cover are January and December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Sissach, Switzerland
- Average visibility in December: 8km
The months with the highest visibility are March, April, May, June, July and August (9km).
The months with the lowest visibility are January, February, September, October, November and December (8km).
