December weather forecastRoknäs, Sweden
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Roknäs, Sweden, with an average temperature varying between -2.7°C (27.1°F) and -6.4°C (20.5°F).Temperature
In December, the meteorological conditions change slightly, with the average high-temperature moving from an icy 0.5°C (32.9°F) in November to a freezing cold -2.7°C (27.1°F). The nighttime temperature demonstrates a marginal decline, averaging at a still subzero cold -6.4°C (20.5°F) during December.Humidity
The average relative humidity in December is 90%.Rainfall
In Roknäs, in December, during 5.2 rainfall days, 27mm (1.06") of precipitation is typically accumulated. Throughout the year, there are 93.1 rainfall days, and 277mm (10.91") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Roknäs, Sweden, in December, snow falls for 13.3 days, with typically accumulated 135mm (5.31") of snow. Throughout the year, in Roknäs, there are 69.7 snowfall days, and 722mm (28.43") of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 3h and 42min of daylight.On the first day of December in Roknäs, sunrise is at 09:12 and sunset at 13:36. On the last day of the month, sunrise is at 09:48 and sunset at 13:27 CET.
Sunshine
The month with the least sunshine in Roknäs is December, with an average of 1.4h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Roknäs. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average maximum UV index of 1 in December leads to these recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Roknäs, Sweden
- Average high temperature in December: -2.7°C
The warmest month (with the highest average high temperature) is July (19°C).
The month with the lowest average high temperature is January (-5.8°C).
- Average low temperature in December: -6.4°C
The month with the highest average low temperature is July (12.1°C).
The coldest month (with the lowest average low temperature) is February (-10.7°C).
Average pressure in December
Roknäs, Sweden
- Average pressure in December: 1004.9mbar
The month with the highest atmospheric pressure is May (1014.1mbar).
The month with the lowest atmospheric pressure is December (1004.9mbar).
Average wind speed in December
Roknäs, Sweden
- Average wind speed in December: 14.1km/h
The windiest month (with the highest average wind speed) is December (14.1km/h).
The calmest month (with the lowest average wind speed) is July (11.2km/h).
Average humidity in December
Roknäs, Sweden
- Average humidity in December: 90%
The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is June (66%).
Average rainfall in December
Roknäs, Sweden
- Average rainfall in December: 27mm
The wettest month (with the highest rainfall) is July (28mm).
The driest month (with the least rainfall) is February (18mm).
Average rainfall days in December
Roknäs, Sweden
- Average rainfall days in December: 5.2 days
The month with the highest number of rainy days is August (11.3 days).
The month with the least rainy days is February (2.5 days).
Average snowfall in December
Roknäs, Sweden
- Average snowfall in December: 135mm
The month with the highest snowfall is January (156mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Roknäs, Sweden
- Average snowfall days in December: 13.3 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Roknäs, Sweden
- Average daylight in December: 3h and 42min
The month with the longest days is June (Average daylight: 22h and 6min).
The month with the shortest days is December (Average daylight: 3h and 42min).
- Average sunshine in December: 1h and 24min
The month with the most sunshine is July (Average sunshine: 12h and 54min).
The month with the least sunshine is December (Average sunshine: 1h and 24min).
Average sunshine days in December
Roknäs, Sweden
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is June (20.1 days).
The month with the least sunshine days is December (14.5 days).
Average UV index in December
Roknäs, Sweden
- Average UV index in December: 1
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in December
Roknäs, Sweden
- Average cloud cover in December: 63
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in December
Roknäs, Sweden
- Average visibility in December: 8km
The months with the highest visibility are June and July (10km).
The months with the lowest visibility are January, February, March and April (7km).
