December weather forecastTertnes, Norway

December

Weather in December

December, the first month of the winter in Tertnes, is still a cold month, with temperature in the range of an average low of 2.1°C (35.8°F) and an average high of 4.4°C (39.9°F).

Temperature

Upon the onset of December, Tertnes witnesses an average high-temperature of a cold 4.4°C (39.9°F), showing a close resemblance to the prior month. Tertnes welcomes an average low temperature of 2.1°C (35.8°F) in December, a gentle shift from the day's high.

Humidity

The average relative humidity in December in Tertnes is 78%.

Rainfall

In Tertnes, Norway, in December, during 21.8 rainfall days, 198mm (7.8") of precipitation is typically accumulated. Throughout the year, in Tertnes, there are 227.1 rainfall days, and 1594mm (62.76") of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Tertnes, Norway. In Tertnes, in December, during 7 snowfall days, 109mm (4.29") of snow is typically accumulated. In Tertnes, during the entire year, snow falls for 36.1 days and aggregates up to 473mm (18.62") of snow.

Daylight

The month with the shortest days is December, with an average of 5h and 54min of daylight.
On the first day of December in Tertnes, sunrise is at 09:18 and sunset at 15:37. On the last day of the month, sunrise is at 09:45 and sunset at 15:38 CET.

Sunshine

December has the least sunshine of the year, with an average of 2.2h of sunshine.

UV index

The months with the lowest UV index in Tertnes, Norway, are January through March, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: A daily maximum UV index of 2 in December translates into the following instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.

Frequently asked questions

The high-temperature in Tertnes during December is 4.4°C (39.9°F) and the low-temperature is 2.1°C (35.8°F).

In December, the average relative humidity in Tertnes is 78%.

In Tertnes, Norway, during December, the rain falls for 21.8 days and regularly aggregates up to 198mm (7.8") of precipitation.

In December, in Tertnes, Norway, it is snowing for 7 days. Throughout December, 109mm (4.29") of snow is accumulated.

With an average of 5h and 54min of daylight, December has the shortest days of the year in Tertnes, Norway.

The average day length in December in Tertnes is 5h and 53min.

In December, on the first day of the month, sunrise is at 09:18 and sunset at 15:37. On the last day of the month, sunrise is at 09:45 and sunset at 15:38 CET.

With an average of 2.2h of sunshine, December has the least sunshine of the year.

In Tertnes, the average sunshine duration in December is 2.2h.

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

The average daily maximum UV index in December in Tertnes, Norway, is 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to UV radiation.
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
Tertnes, Norway

  • Average high temperature in December: 4.4°C

The warmest month (with the highest average high temperature) is August (16.1°C).
The month with the lowest average high temperature is January (2.8°C).

  • Average low temperature in December: 2.1°C

The month with the highest average low temperature is August (12.7°C).
The coldest month (with the lowest average low temperature) is February (0°C).

Average pressure in December
Tertnes, Norway

  • Average pressure in December: 1005.8mbar

The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1005.8mbar).

Average wind speed in December
Tertnes, Norway

  • Average wind speed in December: 21.1km/h

The windiest months (with the highest average wind speed) are January and December (21.1km/h).
The calmest month (with the lowest average wind speed) is June (13.6km/h).

Average humidity in December
Tertnes, Norway

  • Average humidity in December: 78%

The month with the highest relative humidity is March (81%).
The months with the lowest relative humidity are May and October (75%).

Average rainfall in December
Tertnes, Norway

  • Average rainfall in December: 198mm

The wettest month (with the highest rainfall) is October (201mm).
The driest month (with the least rainfall) is April (73mm).

Average rainfall days in December
Tertnes, Norway

  • Average rainfall days in December: 21.8 days

The month with the highest number of rainy days is September (22.3 days).
The month with the least rainy days is February (14.8 days).

Average snowfall in December
Tertnes, Norway

  • Average snowfall in December: 109mm

The month with the highest snowfall is January (127mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Tertnes, Norway

  • Average snowfall days in December: 7 days

The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Tertnes, Norway

  • Average daylight in December: 5h and 54min

The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).

  • Average sunshine in December: 2h and 12min

The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 2h and 12min).

Average sunshine days in December
Tertnes, Norway

  • Average sunshine days in December: 5.4 days

The month with the most sunshine days is May (12 days).
The month with the least sunshine days is December (5.4 days).

Average UV index in December
Tertnes, Norway

  • Average UV index in December: 2

The months with the highest UV index are 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
Tertnes, Norway

  • Average cloud cover in December: 67

The month with the most cloud cover is December (Cloud cover 67).
The month with the least cloud cover is May (Cloud cover 47).

Average visibility in December
Tertnes, Norway

  • Average visibility in December: 9km

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