December weather forecastKopervik, Norway
December
Weather in December
The first month of the winter, December, is also a wintry month in Kopervik, Norway, with an average temperature fluctuating between 5.7°C (42.3°F) and 3.5°C (38.3°F).Temperature
The arrival of December denotes a barely perceptible change in the average high-temperatures to a cold 5.7°C (42.3°F) from November's 7.8°C (46°F). Kopervik's nighttime average temperature in December drops marginally from the daytime highs, settling at 3.5°C (38.3°F).Humidity
In Kopervik, the average relative humidity in December is 78%.Rainfall
In Kopervik, in December, it is raining for 21.8 days, with typically 155mm (6.1") of accumulated precipitation. Throughout the year, there are 220.1 rainfall days, and 1290mm (50.79") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Kopervik. In Kopervik, Norway, in December, snow falls for 4 days, with typically accumulated 42mm (1.65") of snow. In Kopervik, Norway, during the entire year, snow falls for 22 days and aggregates up to 213mm (8.39") of snow.Sea temperature
In Kopervik, Norway, the average seawater temperature in December is 8.3°C (46.9°F).Note: It is advised against swimming in 8.3°C (46.9°F) when it drops below 10°C (50°F). Such temperatures can cause extreme cold shock, leading to hyperventilation.
Daylight
December has the shortest days of the year, with an average of 6h and 18min of daylight.On the first day of the month, sunrise is at 09:08 and sunset at 15:47. On the last day of December, sunrise is at 09:34 and sunset at 15:49 CET.
Sunshine
The month with the least sunshine is December, with an average of 2.2h of sunshine.UV index
In December, the average daily maximum UV index in Kopervik is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 in December translates into these instructions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Kopervik, Norway
- Average high temperature in December: 5.7°C
The warmest month (with the highest average high temperature) is August (16.5°C).
The month with the lowest average high temperature is February (4.1°C).
- Average low temperature in December: 3.5°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is February (2.1°C).
Average pressure in December
Kopervik, Norway
- Average pressure in December: 1006.3mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1006.3mbar).
Average wind speed in December
Kopervik, Norway
- Average wind speed in December: 26.1km/h
The windiest month (with the highest average wind speed) is January (26.7km/h).
The calmest months (with the lowest average wind speed) are June and July (17.5km/h).
Average humidity in December
Kopervik, Norway
- Average humidity in December: 78%
The month with the highest relative humidity is July (81%).
The months with the lowest relative humidity are May, October and November (76%).
Average rainfall in December
Kopervik, Norway
- Average rainfall in December: 155mm
The wettest month (with the highest rainfall) is October (158mm).
The driest month (with the least rainfall) is April (58mm).
Average rainfall days in December
Kopervik, Norway
- Average rainfall days in December: 21.8 days
The month with the highest number of rainy days is December (21.8 days).
The month with the least rainy days is June (14.6 days).
Average snowfall in December
Kopervik, Norway
- Average snowfall in December: 42mm
The month with the highest snowfall is January (62mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Kopervik, Norway
- Average snowfall days in December: 4 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in December
Kopervik, Norway
- Average sea temperature in December: 8.3°C
The best month for swimming (with the highest average sea temperature) is August (16.2°C).
The coldest month (with the lowest average sea temperature) is March (4.8°C).
Average daylight in December /
Average sunshine in December
Kopervik, Norway
- Average daylight in December: 6h and 18min
The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 18min).
- Average sunshine in December: 2h and 12min
The month with the most sunshine is June (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 2h and 12min).
Average sunshine days in December
Kopervik, Norway
- Average sunshine days in December: 6.2 days
The month with the most sunshine days is June (13.7 days).
The month with the least sunshine days is December (6.2 days).
Average UV index in December
Kopervik, Norway
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 4).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Kopervik, Norway
- Average cloud cover in December: 69
The month with the most cloud cover is December (Cloud cover 69).
The month with the least cloud cover is May (Cloud cover 47).
Average visibility in December
Kopervik, Norway
- Average visibility in December: 9km
The months with the highest visibility are May, June, August and September (10km).
The months with the lowest visibility are January, February, March, April, July, October, November and December (9km).
