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Monthly climate in Otta, Norway

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Otta features a subarctic climate (Dfc). Temperatures typically range between -9 °C (16 °F) and 13 °C (55 °F) through the year, but rarely can drop to -28 °C (-18 °F) or can rise to as high as 28 °C (83 °F). The average annual precipitation amounts to about 781 mm (30.8 inches) and receives 156 rainy days on the 1 mm (0.04 inches) threshold annually. Otta enjoys an average of 3231 hours of sunshine throughout the year, and daylight varies from 5 hours 23 minutes to 19 hours 25 minutes per day.

Monthly average temperatures in Otta, Norway

The warmest months in Otta are June, July and August, with daily mean temperatures ranging from 11 to 13 °C (52 - 55 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -9 to -8 °C (16 - 17 °F) throughout the day. On average each year, Otta experiences 2 days above 25 °C (77.0 °F) and 197 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Otta. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum5°C
(41°F)		5°C
(42°F)		8°C
(47°F)		17°C
(62°F)		24°C
(76°F)		26°C
(78°F)		28°C
(83°F)		22°C
(72°F)		18°C
(64°F)		14°C
(58°F)		8°C
(48°F)		4°C
(39°F)
Mean maximum3°C
(37°F)		2°C
(36°F)		6°C
(44°F)		12°C
(54°F)		20°C
(69°F)		21°C
(69°F)		24°C
(75°F)		20°C
(69°F)		16°C
(61°F)		11°C
(51°F)		5°C
(41°F)		3°C
(38°F)
Average high-6°C
(21°F)		-5°C
(22°F)		-1°C
(31°F)		4°C
(39°F)		10°C
(50°F)		16°C
(61°F)		18°C
(64°F)		15°C
(59°F)		10°C
(50°F)		4°C
(40°F)		-2°C
(29°F)		-6°C
(22°F)
Daily mean-9°C
(16°F)		-9°C
(17°F)		-5°C
(24°F)		-0°C
(32°F)		6°C
(42°F)		12°C
(53°F)		13°C
(55°F)		11°C
(52°F)		7°C
(44°F)		2°C
(35°F)		-5°C
(24°F)		-8°C
(17°F)
Average low-12°C
(10°F)		-12°C
(10°F)		-9°C
(16°F)		-5°C
(23°F)		1°C
(34°F)		7°C
(44°F)		8°C
(46°F)		6°C
(44°F)		3°C
(38°F)		-1°C
(31°F)		-8°C
(19°F)		-11°C
(12°F)
Mean minimum-23°C
(-9°F)		-22°C
(-7°F)		-19°C
(-3°F)		-15°C
(6°F)		-7°C
(20°F)		0°C
(33°F)		0°C
(33°F)		0°C
(33°F)		-1°C
(31°F)		-9°C
(16°F)		-22°C
(-7°F)		-22°C
(-8°F)
Minimum-27°C
(-16°F)		-28°C
(-18°F)		-27°C
(-17°F)		-21°C
(-5°F)		-12°C
(11°F)		-1°C
(30°F)		-3°C
(27°F)		-0°C
(31°F)		-3°C
(28°F)		-11°C
(12°F)		-28°C
(-18°F)		-25°C
(-13°F)

Compare climate in Otta with other places

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

Monthly average precipitation in Otta, Norway

Otta usually has the most precipitation in July, August and October, with an average of 15 rainy days and 89 mm (3.5 inches) of precipitation per month. The driest months in Otta are February, March and April. On average, 38 mm (1.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Otta. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)47 (1.9)39 (1.5)43 (1.7)33 (1.3)67 (2.6)77 (3.0)81 (3.2)102 (4.0)79 (3.1)85 (3.3)66 (2.6)63 (2.5)
Average precipitation days (≥ 1 mm)10101191313131616171216

Monthly sunshine hours in Otta, Norway

The sunniest months in Otta are May, June and July, when the sun shines an average of 14 hours 17 minutes a day. Least sunny months in Otta: January, November and December receive an average of 2 hours 56 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Otta. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours7717829337342143146236425118512566
Mean daily daylight hours6h 19m8h 55m11h 51m14h 50m17h 41m19h 25m18h 27m15h 47m12h 50m9h 54m7h 5m5h 23m

Solar UV radiation in Otta, Norway

Otta experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 6 - 7, which corresponds to the High category of sun exposure. January, February and November 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 Otta UV Index data.

Average daily maximum UV levels by month for Otta. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)113467754211