December weather forecastStyrsö, Sweden
December
Weather in December
December, the first month of the winter in Styrsö, is also a wintry month, with temperature in the range of an average low of 2.2°C (36°F) and an average high of 4.5°C (40.1°F).Temperature
The transition from November to December sees an average high-temperature of an icy 4.5°C (40.1°F), indicating a minor variance from the prior month. Nighttime, during December, brings an average low of 2.2°C (36°F), a modest reduction from the day's peak.Humidity
The average relative humidity in December in Styrsö is 83%.Rainfall
In Styrsö, in December, it is raining for 11.5 days, with typically 17mm (0.67") of accumulated precipitation. In Styrsö, during the entire year, the rain falls for 123.7 days and collects up to 186mm (7.32") of precipitation.Snowfall
Months with snowfall are January through March, November and December. In December, it is snowing for 3 days. Throughout December, 6mm (0.24") of snow is accumulated. Throughout the year, in Styrsö, there are 19 snowfall days, and 32mm (1.26") of snow is accumulated.Sea temperature
In Styrsö, in December, the average water temperature is 5.8°C (42.4°F).Note: Dipping into 5.8°C (42.4°F) below 10°C (50°F) needs protective wear, or you'd face cold shock and breathing issues swiftly. Meanwhile, a slight swim around 13°C (55.4°F) feels cold to the bone.
Daylight
With an average of 6h and 42min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 08:30 and sunset at 15:33. On the last day of December, in Styrsö, sunrise is at 08:55 and sunset at 15:36 CET.
Sunshine
In December, the average sunshine in Styrsö is 3.9h.UV index
The months with the lowest UV index in Styrsö, Sweden, are January through March, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Always opt for UVA and UVB-resistant sunglasses on radiant days. 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
Styrsö, Sweden
- Average high temperature in December: 4.5°C
The warmest month (with the highest average high temperature) is July (18.5°C).
The month with the lowest average high temperature is February (1.8°C).
- Average low temperature in December: 2.2°C
The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is February (-0.3°C).
Average pressure in December
Styrsö, Sweden
- Average pressure in December: 1008.8mbar
The month with the highest atmospheric pressure is April (1014.7mbar).
The month with the lowest atmospheric pressure is December (1008.8mbar).
Average wind speed in December
Styrsö, Sweden
- Average wind speed in December: 27km/h
The windiest month (with the highest average wind speed) is December (27km/h).
The calmest month (with the lowest average wind speed) is June (18.4km/h).
Average humidity in December
Styrsö, Sweden
- Average humidity in December: 83%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is May (75%).
Average rainfall in December
Styrsö, Sweden
- Average rainfall in December: 17mm
The wettest month (with the highest rainfall) is August (21mm).
The driest month (with the least rainfall) is April (8mm).
Average rainfall days in December
Styrsö, Sweden
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is August (13.6 days).
The month with the least rainy days is February (7.7 days).
Average snowfall in December
Styrsö, Sweden
- Average snowfall in December: 6mm
The month with the highest snowfall is January (12mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Styrsö, Sweden
- Average snowfall days in December: 3 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average sea temperature in December
Styrsö, Sweden
- Average sea temperature in December: 5.8°C
The best month for swimming (with the highest average sea temperature) is August (18.5°C).
The coldest month (with the lowest average sea temperature) is March (2.6°C).
Average daylight in December /
Average sunshine in December
Styrsö, Sweden
- Average daylight in December: 6h and 42min
The month with the longest days is June (Average daylight: 17h and 54min).
The month with the shortest days is December (Average daylight: 6h and 42min).
- Average sunshine in December: 3h and 54min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The months with the least sunshine are January, February and November (Average sunshine: 3h and 42min).
Average sunshine days in December
Styrsö, Sweden
- Average sunshine days in December: 13.6 days
The month with the most sunshine days is March (19.8 days).
The month with the least sunshine days is August (13.3 days).
Average UV index in December
Styrsö, Sweden
- Average UV index in December: 2
The month with the highest UV index is 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
Styrsö, Sweden
- Average cloud cover in December: 61
The months with the most cloud cover are February and November (Cloud cover 62).
The month with the least cloud cover is June (Cloud cover 36).
Average visibility in December
Styrsö, Sweden
- Average visibility in December: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
