December weather forecastAlta, Norway
December
Weather in December
Closing the year in Alta, Norway is December, which is prominently cold accompanied by robust snowy climates. While temperatures remain distinctively frosty, precipitation majorly takes the form of snowfall. Similar to the year's opening month, December's snowfall touches a high averaging 91mm (3.58"). Reduced sunshine hours and extensive cloud cover denote the milder duration of daylight that this month brings. The northerly winds gust at their peak speed, symbolizing the dominance and intensity of winter at year-end.Temperature
The weather in Alta during December records an average high-temperature of a still subzero cold -4.1°C (24.6°F), closely mirroring the preceding month. December nights in Alta witness a mild cool down to an average low of -8.2°C (17.2°F).Humidity
In Alta, the average relative humidity in December is 87%.Rainfall
In December, in Alta, the rain falls for 3.8 days. Throughout December, 19mm (0.75") of precipitation is accumulated. In Alta, Norway, during the entire year, the rain falls for 113.3 days and collects up to 318mm (12.52") of precipitation.Snowfall
Months with snowfall in Alta are January through June, September through December. In December, it is snowing for 12.1 days. Throughout December, 91mm (3.58") of snow is accumulated. Throughout the year, in Alta, there are 90.6 snowfall days, and 728mm (28.66") of snow is accumulated.Sea temperature
In Alta, in December, the average water temperature is 6°C (42.8°F).Note: Danger awaits those who swim in 6°C (42.8°F) without protection. Falling below 10°C (50°F) means intense cold shock and hyperventilation.
Daylight
The months with the shortest days in Alta are June and December, with an average of 0h and 0min of daylight.Sunshine
With an average of 0.4h of sunshine, December has the least sunshine of the year in Alta, Norway.UV index
January through April, October through December, with an average maximum UV index of 1, are months with the lowest UV index in Alta, Norway. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 1 suggests these recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Alta, Norway
- Average high temperature in December: -4.1°C
The warmest month (with the highest average high temperature) is July (14.4°C).
The months with the lowest average high temperature are January and February (-6.7°C).
- Average low temperature in December: -8.2°C
The month with the highest average low temperature is July (8.7°C).
The coldest month (with the lowest average low temperature) is February (-11.9°C).
Average pressure in December
Alta, Norway
- Average pressure in December: 1001.5mbar
The month with the highest atmospheric pressure is May (1014.1mbar).
The month with the lowest atmospheric pressure is December (1001.5mbar).
Average wind speed in December
Alta, Norway
- Average wind speed in December: 16.8km/h
The windiest month (with the highest average wind speed) is March (17.5km/h).
The calmest month (with the lowest average wind speed) is August (11.8km/h).
Average humidity in December
Alta, Norway
- Average humidity in December: 87%
The month with the highest relative humidity is April (89%).
The months with the lowest relative humidity are June and July (75%).
Average rainfall in December
Alta, Norway
- Average rainfall in December: 19mm
The wettest month (with the highest rainfall) is July (44mm).
The driest month (with the least rainfall) is February (16mm).
Average rainfall days in December
Alta, Norway
- Average rainfall days in December: 3.8 days
The month with the highest number of rainy days is June (17.5 days).
The month with the least rainy days is December (3.8 days).
Average snowfall in December
Alta, Norway
- Average snowfall in December: 91mm
The month with the highest snowfall is March (137mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in December
Alta, Norway
- Average snowfall days in December: 12.1 days
The month with the highest number of snowfall days is March (14.6 days).
The months with the least snowfall days are July and August (0 days).
Average sea temperature in December
Alta, Norway
- Average sea temperature in December: 6°C
The best month for swimming (with the highest average sea temperature) is August (10°C).
The coldest months (with the lowest average sea temperature) are February, March and April (4°C).
Average daylight in December /
Average sunshine in December
Alta, Norway
- Average daylight in December: 0h and 0min
The month with the longest days is August (Average daylight: 18h and 12min).
The months with the shortest days are June and December (Average daylight: 0h and 0min).
- Average sunshine in December: 0h and 24min
The month with the most sunshine is August (Average sunshine: 8h and 36min).
The month with the least sunshine is December (Average sunshine: 0h and 24min).
Average sunshine days in December
Alta, Norway
- Average sunshine days in December: 16.7 days
The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is June (9.1 days).
Average UV index in December
Alta, Norway
- Average UV index in December: 1
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).
Average cloud cover in December
Alta, Norway
- Average cloud cover in December: 61
The month with the most cloud cover is March (Cloud cover 67).
The months with the least cloud cover are July, August and September (Cloud cover 57).
Average visibility in December
Alta, Norway
- Average visibility in December: 9km
The months with the highest visibility are June, July, August, September, October, November and December (9km).
The month with the lowest visibility is April (7km).





