December weather forecastSigtuna, Sweden
December
Weather in December
December, the first month of the winter in Sigtuna, is also a wintry month, with an average temperature varying between 1°C (33.8°F) and -2.5°C (27.5°F).Temperature
December signifies a minor drop in average high-temperature, transitioning from an icy 4.8°C (40.6°F) in November to a still cold 1°C (33.8°F). An average low-temperature of -2.5°C (27.5°F), slightly less than the daytime peak, marks the month of December.Humidity
January, February and December, with an average relative humidity of 89%, are the most humid months in Sigtuna.Rainfall
In December, the rain falls for 8.3 days. Throughout December, 29mm (1.14") of precipitation is accumulated. Throughout the year, there are 141.1 rainfall days, and 377mm (14.84") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Sigtuna. In Sigtuna, Sweden, in December, during 9.7 snowfall days, 73mm (2.87") of snow is typically accumulated. Throughout the year, in Sigtuna, there are 49.9 snowfall days, and 368mm (14.49") of snow is accumulated.Daylight
December has the shortest days of the year in Sigtuna, with an average of 6h and 12min of daylight.On the first day of December in Sigtuna, 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
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 low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: An average UV index of 2 in December transforms into this advice:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sigtuna, Sweden
- Average high temperature in December: 1°C
The warmest month (with the highest average high temperature) is July (21.6°C).
The month with the lowest average high temperature is January (-0.9°C).
- Average low temperature in December: -2.5°C
The month with the highest average low temperature is July (13°C).
The coldest month (with the lowest average low temperature) is February (-4.3°C).
Average pressure in December
Sigtuna, 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
Sigtuna, Sweden
- Average wind speed in December: 16.2km/h
The windiest month (with the highest average wind speed) is December (16.2km/h).
The calmest months (with the lowest average wind speed) are July and August (11.5km/h).
Average humidity in December
Sigtuna, 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
Sigtuna, Sweden
- Average rainfall in December: 29mm
The wettest month (with the highest rainfall) is July (56mm).
The driest month (with the least rainfall) is April (17mm).
Average rainfall days in December
Sigtuna, Sweden
- Average rainfall days in December: 8.3 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (5.4 days).
Average snowfall in December
Sigtuna, Sweden
- Average snowfall in December: 73mm
The month with the highest snowfall is February (99mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Sigtuna, Sweden
- Average snowfall days in December: 9.7 days
The month with the highest number of snowfall days is February (11.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sigtuna, 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 6min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in December
Sigtuna, Sweden
- Average sunshine days in December: 14.4 days
The month with the most sunshine days is October (15.6 days).
The month with the least sunshine days is July (10.7 days).
Average UV index in December
Sigtuna, 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
Sigtuna, Sweden
- Average cloud cover in December: 65
The month with the most cloud cover is February (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in December
Sigtuna, 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).
