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Monthly climate in Oslo, Norway

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Oslo features a subarctic climate (Dfc).Temperatures typically range between -3 °C (27 °F) and 17 °C (63 °F) through the year, but rarely can drop to -20 °C (-4 °F) or can rise to as high as 32 °C (90 °F).The average annual precipitation amounts to about 1056 mm (41.6 inches) and receives 137 rainy days on the 1 mm (0.04 inches) threshold annually.Oslo enjoys an average of 3317 hours of sunshine throughout the year, and daylight varies from 5 hours 58 minutes to 18 hours 43 minutes per day.

Monthly average temperatures in Oslo, Norway §

The warmest months in Oslo are June, July and August, with daily mean temperatures ranging from 15 to 17 °C (60 - 63 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -3 to -2 °C (27 - 28 °F) throughout the day. On average each year, Oslo experiences 14 days above 25 °C (77.0 °F) and 127 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Oslo, 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 9°C
(49°F)		 9°C
(49°F)		 16°C
(62°F)		 23°C
(73°F)		 29°C
(85°F)		 30°C
(86°F)		 32°C
(90°F)		 28°C
(83°F)		 25°C
(77°F)		 17°C
(63°F)		 14°C
(57°F)		 7°C
(45°F)
Mean maximum 6°C
(43°F)		 6°C
(44°F)		 12°C
(55°F)		 18°C
(65°F)		 24°C
(75°F)		 25°C
(77°F)		 28°C
(82°F)		 25°C
(78°F)		 21°C
(70°F)		 14°C
(58°F)		 10°C
(50°F)		 6°C
(44°F)
Average high -1°C
(31°F)		 0°C
(33°F)		 4°C
(40°F)		 10°C
(50°F)		 15°C
(59°F)		 20°C
(69°F)		 22°C
(72°F)		 20°C
(68°F)		 15°C
(60°F)		 9°C
(49°F)		 4°C
(39°F)		 -0°C
(32°F)
Daily mean -3°C
(27°F)		 -3°C
(27°F)		 0°C
(33°F)		 5°C
(41°F)		 10°C
(51°F)		 16°C
(61°F)		 17°C
(63°F)		 15°C
(60°F)		 12°C
(53°F)		 7°C
(44°F)		 2°C
(36°F)		 -2°C
(28°F)
Average low -6°C
(22°F)		 -6°C
(22°F)		 -4°C
(26°F)		 -0°C
(32°F)		 5°C
(42°F)		 11°C
(52°F)		 12°C
(55°F)		 11°C
(53°F)		 8°C
(47°F)		 4°C
(40°F)		 0°C
(33°F)		 -4°C
(24°F)
Mean minimum -15°C
(5°F)		 -15°C
(6°F)		 -11°C
(13°F)		 -7°C
(19°F)		 -2°C
(29°F)		 6°C
(43°F)		 7°C
(46°F)		 6°C
(43°F)		 4°C
(39°F)		 -3°C
(28°F)		 -7°C
(19°F)		 -12°C
(10°F)
Minimum -18°C
(-1°F)		 -20°C
(-4°F)		 -18°C
(0°F)		 -12°C
(11°F)		 -3°C
(26°F)		 3°C
(38°F)		 5°C
(41°F)		 5°C
(42°F)		 1°C
(35°F)		 -4°C
(25°F)		 -9°C
(15°F)		 -16°C
(3°F)

Compare climate in Oslo with other places

Compare temperature, precipitation, sunshine, UV index in Oslo, Norway with other places around the world.

Monthly average precipitation in Oslo, Norway §

Oslo usually has the most precipitation in October, November and December, with an average of 14 rainy days and 115 mm (4.5 inches) of precipitation per month.The driest months in Oslo are January, February and April. On average, 54 mm (2.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Oslo, 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) 60 (2.4) 64 (2.5) 65 (2.5) 38 (1.5) 90 (3.5) 86 (3.4) 103 (4.1) 100 (3.9) 106 (4.2) 130 (5.1) 107 (4.2) 107 (4.2)
Average precipitation days (≥ 1 mm) 9 10 9 6 12 12 11 13 13 14 12 16

Monthly sunshine hours in Oslo, Norway §

The sunniest months in Oslo are May, June and July, when the sun shines an average of 14 hours 14 minutes a day.Least sunny months in Oslo: January, November and December receive an average of 3 hours 21 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Oslo, 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 88 175 286 369 403 440 465 390 267 209 126 93
Mean daily daylight hours 6h 47m 9h 8m 11h 51m 14h 38m 17h 13m 18h 43m 17h 54m 15h 30m 12h 47m 10h 3m 7h 28m 5h 58m

Solar UV radiation in Oslo, Norway §

Oslo experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 5 - 7, which corresponds to the Moderate / 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 Oslo UV Index data.

Average daily maximum UV levels by month for Oslo, 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 4 5 7 7 5 4 2 1 1