December weather forecast
Mongstad, Norway

December

Weather in December

December, the first month of the winter in Mongstad, is also an icy month, with an average temperature ranging between max 5.8°C (42.4°F) and min 4°C (39.2°F).

Temperature

The transition into December reveals an average high-temperature of an icy 5.8°C (42.4°F), mirroring a close resemblance to November. Mongstad's nighttime temperature in December consistently rests at a still cold 4°C (39.2°F).

Humidity

The average relative humidity in December is 75%.

Rainfall

In Mongstad, in December, during 22.5 rainfall days, 172mm (6.77") of precipitation is typically accumulated. Throughout the year, there are 229.7 rainfall days, and 1406mm (55.35") of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Mongstad, in December, during 3.5 snowfall days, 25mm (0.98") of snow is typically accumulated. Throughout the year, there are 23.7 snowfall days, and 186mm (7.32") of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 5h and 48min of daylight.
On the first day of the month, sunrise is at 09:22 and sunset at 15:35. On the last day of December, sunrise is at 09:49 and sunset at 15:36 CET.

Sunshine

January and December, with an average of 2.2h of sunshine, are months with the least sunshine.

UV index

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: In December, an average UV index of 2 transforms into the following instructions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.

Frequently asked questions

Is it cold during December?
The high-temperature during December is 5.8°C (42.4°F) and the low-temperature is 4°C (39.2°F).
What is the average humidity in December?
In December, the average relative humidity is 75%.
How much does it rain in December?
In Mongstad, in December, during 22.5 rainfall days, 172mm (6.77") of precipitation is typically accumulated.
How many days does it snow in December?
In Mongstad, Norway, in December, during 3.5 snowfall days, 25mm (0.98") of snow is typically accumulated.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 5h and 48min of daylight.
How many hours of daylight does Mongstad have in December?
In Mongstad, the average day length in December is 5h and 47min.
When is the sunrise / sunset in December?
On the first day of December, sunrise is at 09:22 and sunset at 15:35. On the last day of the month, sunrise is at 09:49 and sunset at 15:36 CET.
What is the month with the least sunshine?
January and December, with an average of 2.2h of sunshine, are months with the least sunshine.
How long on average sun shines in December?
In Mongstad, the average sunshine duration in December is 2.2h.
What are the months with the lowest UV index?
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Mongstad.
What is the UV index reading in December?
In Mongstad, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Mongstad, Norway
  • Average high temperature in December: 5.8°C

The warmest month (with the highest average high temperature) is August (15.7°C).
The month with the lowest average high temperature is February (4.3°C).

  • Average low temperature in December: 4°C

The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is February (2.3°C).

Average pressure in December
Mongstad, Norway
  • Average pressure in December: 1005mbar

The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1005mbar).

Average wind speed in December
Mongstad, Norway
  • Average wind speed in December: 29.1km/h

The windiest month (with the highest average wind speed) is January (29.5km/h).
The calmest month (with the lowest average wind speed) is July (18.5km/h).

Average humidity in December
Mongstad, Norway
  • Average humidity in December: 75%

The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is November (73%).

Average rainfall in December
Mongstad, Norway
  • Average rainfall in December: 172mm

The wettest month (with the highest rainfall) is October (178mm).
The driest month (with the least rainfall) is June (56mm).

Average rainfall days in December
Mongstad, Norway
  • Average rainfall days in December: 22.5 days

The month with the highest number of rainy days is December (22.5 days).
The month with the least rainy days is June (14.7 days).

Average snowfall in December
Mongstad, Norway
  • Average snowfall in December: 25mm

The month with the highest snowfall is February (51mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Mongstad, Norway
  • Average snowfall days in December: 3.5 days

The month with the highest number of snowfall days is February (6.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Mongstad, Norway
  • Average daylight in December: 5h and 5min

The month with the longest days is June (Average daylight: 19h and 0min).
The month with the shortest days is December (Average daylight: 5h and 48min).

  • Average sunshine in December: 2h and 1min

The month with the most sunshine is June (Average sunshine: 9h and 36min).
The months with the least sunshine are January and December (Average sunshine: 2h and 12min).

Average sunshine days in December
Mongstad, Norway
  • Average sunshine days in December: 5.4 days

The month with the most sunshine days is June (13.5 days).
The month with the least sunshine days is December (5.4 days).

Average UV index in December
Mongstad, Norway
  • Average UV index in December: 2

The months with the highest UV index are May, June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in December
Mongstad, Norway
  • Average cloud cover in December: 68

The months with the most cloud cover are January and December (Cloud cover 68).
The month with the least cloud cover is May (Cloud cover 47).

Average visibility in December
Mongstad, Norway
  • Average visibility in December: 9km

The months with the highest visibility are May, June, July and August (10km).
The months with the lowest visibility are January, February, March, April, September, October, November and December (9km).

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