December weather forecast
Alta, Norway

englishespañol中文
Share

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.

Frequently asked questions

How cold is it in Alta in December?

In Alta, in December, the average high-temperature is -4.1°C (24.6°F), and the average low-temperature is -8.2°C (17.2°F).

What is the average humidity in December in Alta?

In December, the average relative humidity is 87%.

How much does it rain in Alta in December?

In Alta, Norway, in December, it is raining for 3.8 days, with typically 19mm (0.75") of accumulated precipitation.

How many days does it snow in December in Alta?

In Alta, Norway, in December, snow falls for 12.1 days, with typically accumulated 91mm (3.58") of snow.

What is the sea water temperature in December in Alta?

In Alta, in December, the average water temperature is 6°C (42.8°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

What is the month with the shortest days in Alta?

June and December, with an average of 0h and 0min of daylight, are months with the shortest days in Alta.

What is the average length of the day in December in Alta?

In Alta, Norway, the average day length in December is 0h and 0min.

What is the month with the least sunshine in Alta?

December has the least sunshine of the year in Alta, Norway, with an average of 0.4h of sunshine.

How long on average sun shines in December in Alta?

In December, the average sunshine duration in Alta, Norway, is 0.4h.

What are the months with the lowest UV index in Alta?

The months with the lowest UV index in Alta, Norway, are January through April, October through December, with an average maximum UV index of 1.

What is the UV index intensity in December in Alta?

The average daily maximum UV index in December in Alta is 1. A UV Index reading of 2, and below, represents a low health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Alta, Norway

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / 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 2min

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 - 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 - 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 - 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 - 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).

Alta, Norway

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location