Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
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.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Lysaker in December?
What is the average humidity in December in Lysaker?
How much does it rain in Lysaker in December?
How much does it snow in Lysaker in December?
What is the water temperature in December in Lysaker?
What is the month with the shortest days in Lysaker?
What is the average length of the day in December in Lysaker?
When is the sunrise / sunset in December in Lysaker?
What is the month with the least sunshine in Lysaker?
How long on average sun shines in December in Lysaker?
What is the UV index intensity in December in Lysaker?
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 1min
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 1min
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).
Average cloud cover in December
Lysaker, Norway
- Average cloud cover in December: 56
The month with the most cloud cover is February (Cloud cover 65).
The month with the least cloud cover is June (Cloud cover 45).
Average visibility in December
Lysaker, Norway
- Average visibility in December: 8km
The months with the highest visibility are April, May and June (9km).
The month with the lowest visibility is February (6km).
