December weather forecastSlåsta, Sweden
December
Weather in December
The first month of the winter, December, is still a cold month in Slåsta, Sweden, with an average temperature fluctuating between -2.5°C (27.5°F) and 0.9°C (33.6°F).Temperature
December's arrival aligns with a minor decrease in average high-temperatures, from November's wintry 4.7°C (40.5°F) to a still cold 0.9°C (33.6°F). Nighttime temperatures in Slåsta record an average of -2.5°C (27.5°F) throughout December.Humidity
The months with the highest humidity in Slåsta are January, February and December, with an average relative humidity of 89%.Rainfall
In Slåsta, Sweden, in December, it is raining for 9.5 days, with typically 36mm (1.42") of accumulated precipitation. In Slåsta, during the entire year, the rain falls for 146.7 days and collects up to 392mm (15.43") of precipitation.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall in Slåsta is December, when snow falls for 12.6 days and typically aggregates up to 105mm (4.13") of snow.Daylight
With an average of 6h and 6min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 08:21 and sunset at 14:53. On the last day of December, in Slåsta, sunrise is at 08:47 and sunset at 14:55 CET.
Sunshine
December has the least sunshine of the year, with an average of 2.5h of sunshine.UV index
In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the UV index of 2 transforms into the following advice:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Slåsta, Sweden
- Average high temperature in December: 0.9°C
The warmest month (with the highest average high temperature) is July (21.8°C).
The month with the lowest average high temperature is January (-1°C).
- Average low temperature in December: -2.5°C
The month with the highest average low temperature is July (13°C).
The coldest months (with the lowest average low temperature) are January and February (-4.3°C).
Average pressure in December
Slåsta, Sweden
- Average pressure in December: 1007.6mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1007.6mbar).
Average wind speed in December
Slåsta, Sweden
- Average wind speed in December: 15.9km/h
The windiest month (with the highest average wind speed) is December (15.9km/h).
The calmest months (with the lowest average wind speed) are July and August (11.3km/h).
Average humidity in December
Slåsta, Sweden
- Average humidity in December: 89%
The months with the highest relative humidity are January, February and December (89%).
The month with the lowest relative humidity is May (71%).
Average rainfall in December
Slåsta, Sweden
- Average rainfall in December: 36mm
The wettest month (with the highest rainfall) is July (48mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in December
Slåsta, Sweden
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in December
Slåsta, Sweden
- Average snowfall in December: 105mm
The month with the highest snowfall is December (105mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Slåsta, Sweden
- Average snowfall days in December: 12.6 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Slåsta, Sweden
- Average daylight in December: 6h and 6min
The month with the longest days is June (Average daylight: 18h and 36min).
The month with the shortest days is December (Average daylight: 6h and 6min).
- Average sunshine in December: 2h and 30min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in December
Slåsta, Sweden
- Average sunshine days in December: 10.6 days
The month with the most sunshine days is October (14 days).
The month with the least sunshine days is February (10.4 days).
Average UV index in December
Slåsta, Sweden
- 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 and February (UV index 1).
Average cloud cover in December
Slåsta, Sweden
- Average cloud cover in December: 65
The months with the most cloud cover are January and February (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in December
Slåsta, Sweden
- Average visibility in December: 8km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, February, March, November and December (8km).





