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 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
Rjukan's December weather features a light decline in high-temperatures, reducing from a freezing cold -1.6°C (29.1°F) in November to a still subzero cold -4.7°C (23.5°F). Rjukan's evenings during December maintain an average temperature of -9.1°C (15.6°F), aligning closely with the daytime temperatures.Humidity
In December, the average relative humidity in Rjukan is 92%.Rainfall
In Rjukan, in December, during 4.9 rainfall days, 51mm (2.01") of precipitation is typically accumulated. Throughout the year, there are 114.7 rainfall days, and 585mm (23.03") of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. In Rjukan, in December, during 18.5 snowfall days, 392mm (15.43") of snow is typically accumulated. In Rjukan, during the entire year, snow falls for 118.3 days and aggregates up to 2354mm (92.68") of snow.Daylight
The month with the shortest days in Rjukan is December, with an average of 6h and 6min of daylight.On the first day of the month, sunrise is at 09:00 and sunset at 15:29. On the last day of December, sunrise is at 09:26 and sunset at 15:30 CET.
Sunshine
With an average of 2.6h of sunshine, December has the least sunshine of the year in Rjukan.UV index
The months with the lowest UV index in Rjukan are January, February, October through December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 1 in December converts into the following recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Rjukan?
What is the average humidity in December in Rjukan?
How much does it rain in Rjukan in December?
How much does it snow in Rjukan in December?
What is the month with the shortest days in Rjukan?
How many hours of daylight does Rjukan have in December?
When is the sunrise / sunset in December in Rjukan?
What is the month with the least sunshine in Rjukan?
How many hours of sunshine does Rjukan have in December?
What are the months with the lowest UV index in Rjukan?
What is the UV index intensity in December in Rjukan?
Average temperature in December
Rjukan, Norway
- Average high temperature in December: -4.7°C
The warmest month (with the highest average high temperature) is July (15.8°C).
The month with the lowest average high temperature is January (-5.6°C).
- Average low temperature in December: -9.1°C
The month with the highest average low temperature is July (7°C).
The coldest month (with the lowest average low temperature) is January (-11°C).
Average pressure in December
Rjukan, Norway
- Average pressure in December: 1007.8mbar
The month with the highest atmospheric pressure is April (1014.8mbar).
The month with the lowest atmospheric pressure is December (1007.8mbar).
Average wind speed in December
Rjukan, Norway
- Average wind speed in December: 11.8km/h
The windiest month (with the highest average wind speed) is December (11.8km/h).
The calmest month (with the lowest average wind speed) is August (9.3km/h).
Average humidity in December
Rjukan, Norway
- Average humidity in December: 92%
The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is June (72%).
Average rainfall in December
Rjukan, Norway
- Average rainfall in December: 51mm
The wettest month (with the highest rainfall) is November (65mm).
The driest month (with the least rainfall) is April (30mm).
Average rainfall days in December
Rjukan, Norway
- Average rainfall days in December: 4.9 days
The month with the highest number of rainy days is August (17.5 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in December
Rjukan, Norway
- Average snowfall in December: 392mm
The month with the highest snowfall is November (442mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in December
Rjukan, Norway
- Average snowfall days in December: 18.5 days
The month with the highest number of snowfall days is December (18.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Rjukan, 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: 2h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 2h and 36min).
Average sunshine days in December
Rjukan, Norway
- Average sunshine days in December: 11.6 days
The month with the most sunshine days is May (14.2 days).
The month with the least sunshine days is February (9.6 days).
Average UV index in December
Rjukan, Norway
- Average UV index in December: 1
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January, February, October, November and December (UV index 1).
Average cloud cover in December
Rjukan, Norway
- Average cloud cover in December: 59
The months with the most cloud cover are February and November (Cloud cover 63).
The month with the least cloud cover is June (Cloud cover 45).
Average visibility in December
Rjukan, Norway
- Average visibility in December: 7km
The month with the highest visibility is June (9km).
The months with the lowest visibility are January, February, March and November (6km).
