December weather forecastRobertsfors, Sweden
December
Weather in December
December, the first month of the winter in Robertsfors, is also a subzero cold month, with an average temperature fluctuating between -1.1°C (30°F) and -4.3°C (24.3°F).Temperature
Robertsfors records a mild change in average high-temperature during December, easing from a wintry 1.9°C (35.4°F) in November to a subzero cold -1.1°C (30°F). Robertsfors's nocturnal readings in December exhibit minimal variation from the daytime temperatures, averaging at a still freezing cold -4.3°C (24.3°F).Humidity
The average relative humidity in December is 88%.Rainfall
In Robertsfors, during December, the rain falls for 8.3 days and regularly aggregates up to 38mm (1.5") of precipitation. In Robertsfors, during the entire year, the rain falls for 125.3 days and collects up to 392mm (15.43") of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, in Robertsfors, it is snowing for 13.9 days. Throughout December, 155mm (6.1") of snow is accumulated. In Robertsfors, Sweden, during the entire year, snow falls for 83 days and aggregates up to 903mm (35.55") of snow.Daylight
December has the shortest days of the year, with an average of 4h and 24min of daylight.On the first day of the month, sunrise is at 08:56 and sunset at 13:55. On the last day of December, in Robertsfors, sunrise is at 09:29 and sunset at 13:50 CET.
Sunshine
The month with the least sunshine is December, with an average of 1.5h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 1 transforms into these recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Robertsfors, Sweden
- Average high temperature in December: -1.1°C
The warmest month (with the highest average high temperature) is July (18.3°C).
The month with the lowest average high temperature is January (-3.9°C).
- Average low temperature in December: -4.3°C
The month with the highest average low temperature is July (12.4°C).
The coldest month (with the lowest average low temperature) is February (-8.3°C).
Average pressure in December
Robertsfors, Sweden
- Average pressure in December: 1005.2mbar
The month with the highest atmospheric pressure is May (1014.2mbar).
The month with the lowest atmospheric pressure is December (1005.2mbar).
Average wind speed in December
Robertsfors, Sweden
- Average wind speed in December: 17.3km/h
The windiest month (with the highest average wind speed) is December (17.3km/h).
The calmest month (with the lowest average wind speed) is July (12.6km/h).
Average humidity in December
Robertsfors, Sweden
- Average humidity in December: 88%
The month with the highest relative humidity is February (92%).
The month with the lowest relative humidity is June (69%).
Average rainfall in December
Robertsfors, Sweden
- Average rainfall in December: 38mm
The wettest month (with the highest rainfall) is July (43mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in December
Robertsfors, Sweden
- Average rainfall days in December: 8.3 days
The month with the highest number of rainy days is August (15 days).
The month with the least rainy days is February (3.5 days).
Average snowfall in December
Robertsfors, Sweden
- Average snowfall in December: 155mm
The month with the highest snowfall is March (191mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Robertsfors, Sweden
- Average snowfall days in December: 13.9 days
The month with the highest number of snowfall days is January (16.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Robertsfors, Sweden
- Average daylight in December: 4h and 24min
The month with the longest days is June (Average daylight: 20h and 54min).
The month with the shortest days is December (Average daylight: 4h and 24min).
- Average sunshine in December: 1h and 30min
The month with the most sunshine is June (Average sunshine: 13h and 0min).
The month with the least sunshine is December (Average sunshine: 1h and 30min).
Average sunshine days in December
Robertsfors, Sweden
- Average sunshine days in December: 11.3 days
The month with the most sunshine days is October (15.9 days).
The month with the least sunshine days is April (10.6 days).
Average UV index in December
Robertsfors, 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, November and December (UV index 1).
Average cloud cover in December
Robertsfors, Sweden
- Average cloud cover in December: 65
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are June, July and August (Cloud cover 39).
Average visibility in December
Robertsfors, Sweden
- Average visibility in December: 9km
The months with the highest visibility are June and July (10km).
The months with the lowest visibility are January, February, March and April (8km).





