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Monthly climate in Rjukan, Vestfold og Telemark, Norway

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Rjukan features a subarctic climate (Dfc).Temperatures typically range between -7 °C (20 °F) and 12 °C (53 °F) through the year, but rarely can drop to -26 °C (-14 °F) or can rise to as high as 25 °C (77 °F).The average annual precipitation amounts to about 1214 mm (47.8 inches) and receives 171 rainy days on the 1 mm (0.04 inches) threshold annually.Rjukan enjoys an average of 3162 hours of sunshine throughout the year, and daylight varies from 6 hours 2 minutes to 18 hours 39 minutes per day.

Monthly average temperatures in Rjukan, Vestfold og Telemark, Norway §

The warmest months in Rjukan are June, July and August, with daily mean temperatures ranging from 10 to 12 °C (50 - 53 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -7 to -6 °C (20 - 22 °F) throughout the day. On average each year, Rjukan experiences 0 days above 25 °C (77.0 °F) and 192 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Rjukan, Vestfold og Telemark, Norway.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 5°C
(42°F)		 6°C
(43°F)		 12°C
(53°F)		 15°C
(59°F)		 21°C
(70°F)		 23°C
(74°F)		 25°C
(77°F)		 22°C
(72°F)		 21°C
(69°F)		 13°C
(56°F)		 9°C
(49°F)		 5°C
(42°F)
Mean maximum 3°C
(38°F)		 3°C
(37°F)		 7°C
(44°F)		 11°C
(52°F)		 18°C
(65°F)		 19°C
(67°F)		 21°C
(70°F)		 20°C
(67°F)		 16°C
(61°F)		 10°C
(50°F)		 6°C
(43°F)		 4°C
(39°F)
Average high -4°C
(26°F)		 -4°C
(26°F)		 -1°C
(31°F)		 3°C
(37°F)		 9°C
(48°F)		 14°C
(58°F)		 16°C
(61°F)		 14°C
(57°F)		 10°C
(50°F)		 4°C
(40°F)		 -1°C
(31°F)		 -4°C
(26°F)
Daily mean -6°C
(21°F)		 -7°C
(20°F)		 -4°C
(24°F)		 -1°C
(30°F)		 5°C
(40°F)		 10°C
(51°F)		 12°C
(53°F)		 10°C
(50°F)		 6°C
(44°F)		 2°C
(35°F)		 -3°C
(27°F)		 -6°C
(22°F)
Average low -9°C
(16°F)		 -10°C
(15°F)		 -8°C
(18°F)		 -5°C
(22°F)		 -0°C
(32°F)		 6°C
(42°F)		 7°C
(45°F)		 6°C
(43°F)		 3°C
(38°F)		 -1°C
(30°F)		 -5°C
(22°F)		 -8°C
(17°F)
Mean minimum -19°C
(-2°F)		 -19°C
(-2°F)		 -20°C
(-3°F)		 -15°C
(5°F)		 -10°C
(14°F)		 1°C
(34°F)		 2°C
(36°F)		 0°C
(33°F)		 -1°C
(30°F)		 -10°C
(14°F)		 -18°C
(-1°F)		 -19°C
(-2°F)
Minimum -25°C
(-13°F)		 -25°C
(-13°F)		 -24°C
(-11°F)		 -19°C
(-2°F)		 -14°C
(7°F)		 -1°C
(30°F)		 0°C
(33°F)		 -1°C
(30°F)		 -3°C
(27°F)		 -15°C
(6°F)		 -26°C
(-14°F)		 -22°C
(-8°F)

Compare climate in Rjukan with other places

Compare temperature, precipitation, sunshine, UV index in Rjukan, Vestfold og Telemark, Norway with other places around the world.

Monthly average precipitation in Rjukan, Vestfold og Telemark, Norway §

Rjukan usually has the most precipitation in June, September and October, with an average of 16 rainy days and 134 mm (5.3 inches) of precipitation per month.The driest months in Rjukan are January, February and April. On average, 64 mm (2.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Rjukan, Vestfold og Telemark, Norway.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 68 (2.7) 73 (2.9) 75 (2.9) 51 (2.0) 88 (3.5) 126 (5.0) 114 (4.5) 113 (4.5) 134 (5.3) 143 (5.6) 112 (4.4) 119 (4.7)
Average precipitation days (≥ 1 mm) 11 13 13 8 12 14 14 17 16 19 16 18

Monthly sunshine hours in Rjukan, Vestfold og Telemark, Norway §

The sunniest months in Rjukan are May, June and July, when the sun shines an average of 13 hours 46 minutes a day.Least sunny months in Rjukan: January, November and December receive an average of 2 hours 53 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Rjukan, Vestfold og Telemark, Norway.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 82 168 282 359 406 410 450 374 247 195 115 69
Mean daily daylight hours 6h 50m 9h 10m 11h 51m 14h 37m 17h 10m 18h 39m 17h 50m 15h 28m 12h 47m 10h 3m 7h 30m 6h 2m

Solar UV radiation in Rjukan, Vestfold og Telemark, Norway §

Rjukan experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 6 - 7, which corresponds to the High category of sun exposure.January, November and December are in the Low exposure category. In these months, the maximum values of the UV index do not exceed 1. For more detailed information, check out our hourly Rjukan UV Index data.

Average daily maximum UV levels by month for Rjukan, Vestfold og Telemark, Norway.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 1 2 3 5 6 7 7 6 4 2 1 1