December weather forecast
Alta, Norway

Weather in December

December, the first month of the winter in Alta, is also a subzero cold month, with an average temperature fluctuating between -4.1°C (24.6°F) and -8.2°C (17.2°F).

Temperature

In Alta, the average high-temperature in December is almost the same as in November - a still freezing cold -4.1°C (24.6°F). In December, in Alta, the average low-temperature is -8.2°C (17.2°F).

Humidity

In Alta, the average relative humidity in December is 87%.

Rainfall

In Alta, it is raining for 3.8 days, with typically 19mm (0.75") of accumulated precipitation. In Alta, during the entire year, the rain falls for 113.3 days and collects up to 318mm (12.52") of precipitation.

Snowfall

January through June, September through December are months with snowfall. In Alta, snow falls for 12.1 days, with typically accumulated 91mm (3.58") of snow. Throughout the year, there are 90.6 snowfall days, and 728mm (28.66") of snow is accumulated.

Sea temperature

In December, the average sea temperature in Alta is 6°C (42.8°F).
Note: 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.

Daylight

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

Sunshine

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

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. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the average maximum UV index of 1 translate into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in December in Alta?

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

What is the average humidity in December in Alta?

In Alta, Norway, the average relative humidity in December is 87%.

How much does it rain in Alta in December?

In Alta, in December, during 3.8 rainfall days, 19mm (0.75") of precipitation is typically accumulated.

How many days does it snow in December in Alta?

In December, it is snowing for 12.1 days. Throughout December, 91mm (3.58") of snow is accumulated.

What is the sea water temperature in December in Alta?

In Alta, Norway, the average seawater temperature in December is 6°C (42.8°F). Swimming in 6°C (42.8°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

What are the months 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?

The average day length in December in Alta is 0h and 0min.

What is the month with the least sunshine in Alta?

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

How many hours of sunshine does Alta have in December?

The average sunshine duration in December is 0.4h.

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

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

How high is the UV index in December in Alta?

The average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.

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).

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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).

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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).

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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%).

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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).

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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).

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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).

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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).

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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).

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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 10min).
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).

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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).

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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).

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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).

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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).

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