December weather forecastRisa, Norway
December
Weather in December
The first month of the winter, December, is also a frosty month in Risa, Norway, with an average temperature fluctuating between 3.5°C (38.3°F) and 6°C (42.8°F).Temperature
December's commencement is accompanied by an average high-temperature of a still chilly 6°C (42.8°F), diverging marginally from November's 7.9°C (46.2°F). December nighttime temperatures hover close to the daytime peak with an average of 3.5°C (38.3°F).Humidity
In December, the average relative humidity is 79%.Rainfall
The wettest months in Risa are October and December, with an average 73mm (2.87") of rainfall.Snowfall
Months with snowfall in Risa are January through April, November and December. The month with the most snowfall is December, when snow falls for 2.9 days and typically aggregates up to 31mm (1.22") of snow.Daylight
The month with the shortest days in Risa is December, with an average of 6h and 24min of daylight.On the first day of the month, sunrise is at 09:02 and sunset at 15:50. On the last day of December, sunrise is at 09:27 and sunset at 15:52 CET.
Sunshine
The month with the least sunshine is December, with an average of 2.4h of sunshine.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: A daily high UV index of 2 in December leads to these guidelines:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Risa, Norway
- Average high temperature in December: 6°C
The warmest month (with the highest average high temperature) is August (16.5°C).
The month with the lowest average high temperature is February (3.9°C).
- Average low temperature in December: 3.5°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is February (1.9°C).
Average pressure in December
Risa, Norway
- Average pressure in December: 1006.8mbar
The month with the highest atmospheric pressure is May (1015mbar).
The month with the lowest atmospheric pressure is December (1006.8mbar).
Average wind speed in December
Risa, Norway
- Average wind speed in December: 28.6km/h
The windiest month (with the highest average wind speed) is January (30km/h).
The calmest month (with the lowest average wind speed) is July (19.7km/h).
Average humidity in December
Risa, Norway
- Average humidity in December: 79%
The month with the highest relative humidity is July (82%).
The months with the lowest relative humidity are April, October and November (77%).
Average rainfall in December
Risa, Norway
- Average rainfall in December: 73mm
The wettest months (with the highest rainfall) are October and December (73mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in December
Risa, Norway
- Average rainfall days in December: 16.7 days
The month with the highest number of rainy days is August (18.4 days).
The month with the least rainy days is February (12.3 days).
Average snowfall in December
Risa, Norway
- Average snowfall in December: 31mm
The month with the highest snowfall is December (31mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Risa, Norway
- Average snowfall days in December: 2.9 days
The month with the highest number of snowfall days is February (3.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Risa, Norway
- Average daylight in December: 6h and 24min
The month with the longest days is June (Average daylight: 18h and 18min).
The month with the shortest days is December (Average daylight: 6h and 24min).
- Average sunshine in December: 2h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 2h and 24min).
Average sunshine days in December
Risa, Norway
- Average sunshine days in December: 9.6 days
The month with the most sunshine days is May (15.7 days).
The month with the least sunshine days is December (9.6 days).
Average UV index in December
Risa, Norway
- Average UV index in December: 2
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Risa, Norway
- Average cloud cover in December: 65
The month with the most cloud cover is December (Cloud cover 65).
The months with the least cloud cover are May and June (Cloud cover 45).
Average visibility in December
Risa, Norway
- Average visibility in December: 9km
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).
