December weather forecastRossön, Sweden
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Rossön, Sweden, with an average temperature fluctuating between -3.9°C (25°F) and -8.2°C (17.2°F).Temperature
The transition into December involves a small decrease in the average high-temperature, dipping slightly from a freezing cold -0.5°C (31.1°F) in November to a still subzero cold -3.9°C (25°F). The December nights show a slight decrease to a mean low-temperature of -8.2°C (17.2°F).Humidity
In Rossön, the average relative humidity in December is 93%.Rainfall
In Rossön, in December, it is raining for 5.2 days, with typically 23mm (0.91") of accumulated precipitation. Throughout the year, there are 107.4 rainfall days, and 256mm (10.08") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 17.1 days and typically aggregates up to 124mm (4.88") of snow.Daylight
With an average of 4h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 09:10 and sunset at 14:16. On the last day of December, sunrise is at 09:43 and sunset at 14:12 CET.
Sunshine
With an average of 1.4h of sunshine, December has the least sunshine of the year.UV index
January, February, October through December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.Note: An average UV index of 1 in December transforms into this advice:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. 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
Average temperature in December
Rossön, Sweden
- Average high temperature in December: -3.9°C
The warmest month (with the highest average high temperature) is July (19.6°C).
The month with the lowest average high temperature is January (-5.8°C).
- Average low temperature in December: -8.2°C
The month with the highest average low temperature is July (9.9°C).
The coldest month (with the lowest average low temperature) is January (-10.8°C).
Average pressure in December
Rossön, Sweden
- Average pressure in December: 1005.7mbar
The month with the highest atmospheric pressure is May (1014.4mbar).
The month with the lowest atmospheric pressure is December (1005.7mbar).
Average wind speed in December
Rossön, Sweden
- Average wind speed in December: 9.8km/h
The windiest months (with the highest average wind speed) are March and June (10.5km/h).
The calmest month (with the lowest average wind speed) is August (8.8km/h).
Average humidity in December
Rossön, Sweden
- Average humidity in December: 93%
The months with the highest relative humidity are January and February (94%).
The month with the lowest relative humidity is June (66%).
Average rainfall in December
Rossön, Sweden
- Average rainfall in December: 23mm
The wettest month (with the highest rainfall) is July (35mm).
The driest month (with the least rainfall) is February (14mm).
Average rainfall days in December
Rossön, Sweden
- Average rainfall days in December: 5.2 days
The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is February (3.4 days).
Average snowfall in December
Rossön, Sweden
- Average snowfall in December: 124mm
The month with the highest snowfall is December (124mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Rossön, Sweden
- Average snowfall days in December: 17.1 days
The month with the highest number of snowfall days is January (17.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rossön, Sweden
- Average daylight in December: 4h and 30min
The month with the longest days is June (Average daylight: 20h and 42min).
The month with the shortest days is December (Average daylight: 4h and 30min).
- Average sunshine in December: 1h and 24min
The months with the most sunshine are June and July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 1h and 24min).
Average sunshine days in December
Rossön, Sweden
- Average sunshine days in December: 12.2 days
The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is December (12.2 days).
Average UV index in December
Rossön, Sweden
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 4).
The months with the lowest UV index are January, February, October, November and December (UV index 1).
Average cloud cover in December
Rossön, Sweden
- Average cloud cover in December: 65
The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are June and July (Cloud cover 46).
Average visibility in December
Rossön, Sweden
- Average visibility in December: 6km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January and February (5km).
