December weather forecastMärsta, Sweden
December
Weather in December
The first month of the winter, December, is still a cold month in Märsta, Sweden, with an average temperature fluctuating between 0.9°C (33.6°F) and -2.5°C (27.5°F).Temperature
December reveals a small adjustment in temperature, transitioning from an average high of 4.7°C (40.5°F) in November to a still cold 0.9°C (33.6°F). December nights register a minor temperature decline, steadying at a subzero cold -2.5°C (27.5°F).Humidity
January, February and December, with an average relative humidity of 89%, are the most humid months.Rainfall
In Märsta, during December, the rain falls for 9.5 days and regularly aggregates up to 36mm (1.42") of precipitation. Throughout the year, there are 146.7 rainfall days, and 392mm (15.43") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Märsta. December is the month with the most snowfall. Snow falls for 12.6 days and accumulates 105mm (4.13") of snow.Daylight
The month with the shortest days in Märsta is December, with an average of 6h and 12min of daylight.On the first day of December, sunrise is at 08:21 and sunset at 14:54. On the last day of the month, sunrise is at 08:47 and sunset at 14:56 CET.
Sunshine
With an average of 2.5h of sunshine, December has the least sunshine of the year in Märsta.UV index
In Märsta, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index, 2 during December, leads to the following recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Märsta, 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
Märsta, 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
Märsta, 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
Märsta, 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
Märsta, 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
Märsta, 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
Märsta, 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
Märsta, 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
Märsta, Sweden
- Average daylight in December: 6h and 12min
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 12min).
- 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
Märsta, 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
Märsta, 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
Märsta, 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
Märsta, 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).
