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
Weather in December
Temperature
A subtle shift in Svelvik's weather is observed as November turns into December, with the average high temperature reducing from a wintry 2.7°C (36.9°F) to a subzero cold -1.5°C (29.3°F). Svelvik, in the month of December, notes an average low temperature of -5.1°C (22.8°F), indicating a small decrease from the daytime highs.Humidity
The average relative humidity in December in Svelvik, Norway, is 87%.Rainfall
In Svelvik, in December, it is raining for 7.5 days, with typically 28mm (1.1") of accumulated precipitation. In Svelvik, during the entire year, the rain falls for 123.4 days and collects up to 384mm (15.12") of precipitation.Snowfall
January through May, October through December are months with snowfall. In Svelvik, in December, during 7.9 snowfall days, 105mm (4.13") of snow is typically accumulated. In Svelvik, during the entire year, snow falls for 44.9 days and aggregates up to 505mm (19.88") of snow.Sea temperature
In Svelvik, the average seawater temperature in December is 6.4°C (43.5°F).Note: In 6.4°C (43.5°F), cold shock and rapid breathing can occur when swimming at temperatures below 10°C (50°F).
Daylight
December has the shortest days of the year in Svelvik, Norway, with an average of 6h and 12min of daylight.On the first day of the month, sunrise is at 08:51 and sunset at 15:24. On the last day of December, in Svelvik, sunrise is at 09:17 and sunset at 15:26 CET.
Sunshine
The months with the least sunshine in Svelvik are January and December, with an average of 3.4h of sunshine.UV index
The average daily maximum UV index in December in Svelvik, Norway, is 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 during December leads to these advisories:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Frequently asked questions
How cold is it in Svelvik in December?
What is the average humidity in December in Svelvik?
How much does it rain in Svelvik in December?
How much does it snow in Svelvik in December?
What is the sea water temperature in December in Svelvik?
What is the month with the shortest days in Svelvik?
How many hours of daylight does Svelvik have in December?
When are sunrise and sunset in December in Svelvik?
What is the month with the least sunshine in Svelvik?
How many hours of sunshine does Svelvik have in December?
What is the UV index intensity in December in Svelvik?
Average temperature in December
Svelvik, Norway
- Average high temperature in December: -1.5°C
The warmest month (with the highest average high temperature) is July (20.3°C).
The month with the lowest average high temperature is January (-2.4°C).
- Average low temperature in December: -5.1°C
The month with the highest average low temperature is July (10.6°C).
The coldest months (with the lowest average low temperature) are January and February (-7.2°C).
Average pressure in December
Svelvik, 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
Svelvik, Norway
- Average wind speed in December: 10.6km/h
The windiest months (with the highest average wind speed) are January and December (10.6km/h).
The calmest month (with the lowest average wind speed) is August (8.4km/h).
Average humidity in December
Svelvik, Norway
- Average humidity in December: 87%
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is May (70%).
Average rainfall in December
Svelvik, Norway
- Average rainfall in December: 28mm
The wettest months (with the highest rainfall) are July and November (42mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in December
Svelvik, Norway
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is July (15.2 days).
The months with the least rainy days are January and February (4.8 days).
Average snowfall in December
Svelvik, Norway
- Average snowfall in December: 105mm
The month with the highest snowfall is March (113mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Svelvik, Norway
- Average snowfall days in December: 7.9 days
The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in December
Svelvik, Norway
- Average sea temperature in December: 6.4°C
The best month for swimming (with the highest average sea temperature) is August (17.8°C).
The coldest month (with the lowest average sea temperature) is March (3.2°C).
Average daylight in December /
Average sunshine in December
Svelvik, Norway
- Average daylight in December: 6h and 1min
The month with the longest days is June (Average daylight: 18h and 36min).
The month with the shortest days is December (Average daylight: 6h and 12min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The months with the least sunshine are January and December (Average sunshine: 3h and 24min).
Average sunshine days in December
Svelvik, Norway
- Average sunshine days in December: 16.2 days
The month with the most sunshine days is April (19.1 days).
The month with the least sunshine days is July (13.5 days).
Average UV index in December
Svelvik, Norway
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in December
Svelvik, Norway
- Average cloud cover in December: 54
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is June (Cloud cover 43).
Average visibility in December
Svelvik, Norway
- Average visibility in December: 8km
The months with the highest visibility are April, May, June and July (9km).
The months with the lowest visibility are January, February and March (7km).
Svelvik, Norway
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