December weather forecastLysaker, Norway

December

Weather in December

December, the first month of the winter in Lysaker, is also a subzero cold month, with an average temperature varying between -1.6°C (29.1°F) and -5.3°C (22.5°F).

Temperature

The start of December signals a gentle decrease in the average high-temperature, transitioning from an icy 2.7°C (36.9°F) in November to a freezing cold -1.6°C (29.1°F). Lysaker's temperature during December nights registers a minor decrease to an average low of -5.3°C (22.5°F).

Humidity

In Lysaker, the average relative humidity in December is 88%.

Rainfall

In December, the rain falls for 6.5 days. Throughout December, 17mm (0.67") of precipitation is accumulated. Throughout the year, there are 127.7 rainfall days, and 307mm (12.09") of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Lysaker, during December, snow falls for 6.9 days and regularly aggregates up to 56mm (2.2") of snow. In Lysaker, during the entire year, snow falls for 42.9 days and aggregates up to 271mm (10.67") of snow.

Sea temperature

In Lysaker, the average seawater temperature in December is 6.3°C (43.3°F).
Note: Unprotected swimming in 6.3°C (43.3°F) is dangerous due to potential cold shock. Especially when temperatures go below 10°C (50°F), leading to hyperventilation.

Daylight

With an average of 6h and 6min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 08:52 and sunset at 15:20. On the last day of December, in Lysaker, Norway, sunrise is at 09:18 and sunset at 15:22 CET.

Sunshine

January and December, with an average of 3.2h of sunshine, are months with the least sunshine.

UV index

In Lysaker, Norway, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. During bright days, sunglasses that offer UVA and UVB defense are recommended. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.

Updated: Jan 26, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

December temperatures in Lysaker vary between a high-temperature of -1.6°C (29.1°F) and a low-temperature of -5.3°C (22.5°F).

In December, the average relative humidity in Lysaker, Norway, is 88%.

In Lysaker, in December, during 6.5 rainfall days, 17mm (0.67") of precipitation is typically accumulated.

In Lysaker, Norway, during December, snow falls for 6.9 days and regularly aggregates up to 56mm (2.2") of snow.

In Lysaker, in December, the average water temperature is 6.3°C (43.3°F). Swimming in 6.3°C (43.3°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

With an average of 6h and 6min of daylight, December has the shortest days of the year.

In December, the average day length in Lysaker, Norway, is 6h and 4min.

In December, on the first day of the month, sunrise is at 08:52 and sunset at 15:20. On the last day of the month, in Lysaker, sunrise is at 09:18 and sunset at 15:22 CET.

The months with the least sunshine are January and December, with an average of 3.2h of sunshine.

In December, the average sunshine duration is 3.2h.

In December, the average daily maximum UV index in Lysaker is 2. A UV Index reading of 2, and below, represents a low health threat from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

2.7°C

-1.6°C

-2.4°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

10km/h

10.4km/h

10.6km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

3.9

6.9

10.4

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

16.1

18.3

16.8

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Lysaker, Norway

Average high temperature in December: -1.6°C

The warmest month (with the highest average high temperature) is July (20.4°C).
The month with the lowest average high temperature is January (-2.4°C).

Average low temperature in December: -5.3°C

The month with the highest average low temperature is July (10.8°C).
The coldest month (with the lowest average low temperature) is February (-7.8°C).

Average pressure in December
Lysaker, Norway

Average pressure in December: 1008mbar

The month with the highest atmospheric pressure is April (1014.5mbar).
The month with the lowest atmospheric pressure is December (1008mbar).

Average wind speed in December
Lysaker, Norway

Average wind speed in December: 9.8km/h

The windiest month (with the highest average wind speed) is January (9.9km/h).
The calmest month (with the lowest average wind speed) is August (8.3km/h).

Average humidity in December
Lysaker, Norway

Average humidity in December: 88%

The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (71%).

Average rainfall in December
Lysaker, Norway

Average rainfall in December: 17mm

The wettest month (with the highest rainfall) is July (40mm).
The driest month (with the least rainfall) is April (13mm).

Average rainfall days in December
Lysaker, Norway

Average rainfall days in December: 6.5 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (4.3 days).

Average snowfall in December
Lysaker, Norway

Average snowfall in December: 56mm

The month with the highest snowfall is March (73mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December
Lysaker, Norway

Average snowfall days in December: 6.9 days

The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average sea temperature in December
Lysaker, Norway

Average sea temperature in December: 6.3°C

The best month for swimming (with the highest average sea temperature) is August (17.9°C).
The coldest month (with the lowest average sea temperature) is March (3°C).

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

Average daylight in December: 6h and 6min

The month with the longest days is June (Average daylight: 18h and 42min).
The month with the shortest days is December (Average daylight: 6h and 6min).

Average sunshine in December: 3h and 12min

The month with the most sunshine is June (Average sunshine: 11h and 24min).
The months with the least sunshine are January and December (Average sunshine: 3h and 12min).

Average sunshine days in December
Lysaker, Norway

Average sunshine days in December: 18.3 days

The month with the most sunshine days is December (18.3 days).
The month with the least sunshine days is July (10.6 days).

Average UV index in December
Lysaker, 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 and February (UV index 1).