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Monthly climate in Sarpsborg, Norway

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Sarpsborg features a humid continental climate (Dfb). Temperatures typically range between 0 °C (33 °F) and 18 °C (65 °F) through the year, but rarely can drop to -16 °C (4 °F) or can rise to as high as 33 °C (92 °F). The average annual precipitation amounts to about 912 mm (35.9 inches) and receives 135 rainy days on the 1 mm (0.04 inches) threshold annually. Sarpsborg enjoys an average of 3471 hours of sunshine throughout the year, and daylight varies from 6 hours 12 minutes to 18 hours 26 minutes per day.

Monthly average temperatures in Sarpsborg, Norway

The warmest months in Sarpsborg are June, July and August, with daily mean temperatures ranging from 17 to 18 °C (62 - 65 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 0 to 1 °C (33 - 34 °F) throughout the day. On average each year, Sarpsborg experiences 14 days above 25 °C (77.0 °F) and 83 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Sarpsborg. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum11°C
(53°F)		12°C
(54°F)		16°C
(60°F)		22°C
(71°F)		31°C
(88°F)		30°C
(87°F)		33°C
(92°F)		29°C
(84°F)		24°C
(76°F)		18°C
(64°F)		15°C
(60°F)		10°C
(51°F)
Mean maximum8°C
(47°F)		9°C
(49°F)		13°C
(55°F)		20°C
(68°F)		24°C
(75°F)		26°C
(78°F)		29°C
(84°F)		26°C
(79°F)		21°C
(70°F)		16°C
(61°F)		12°C
(54°F)		9°C
(48°F)
Average high3°C
(37°F)		3°C
(37°F)		6°C
(43°F)		11°C
(53°F)		16°C
(61°F)		21°C
(70°F)		22°C
(73°F)		20°C
(69°F)		17°C
(62°F)		12°C
(53°F)		6°C
(44°F)		3°C
(37°F)
Daily mean1°C
(34°F)		0°C
(33°F)		3°C
(37°F)		7°C
(45°F)		12°C
(53°F)		17°C
(63°F)		18°C
(65°F)		17°C
(62°F)		13°C
(56°F)		9°C
(48°F)		4°C
(40°F)		1°C
(34°F)
Average low-1°C
(30°F)		-2°C
(29°F)		-0°C
(32°F)		2°C
(36°F)		7°C
(45°F)		12°C
(55°F)		14°C
(57°F)		13°C
(56°F)		10°C
(51°F)		6°C
(43°F)		2°C
(36°F)		-1°C
(31°F)
Mean minimum-9°C
(16°F)		-10°C
(14°F)		-7°C
(19°F)		-4°C
(25°F)		1°C
(34°F)		8°C
(47°F)		10°C
(49°F)		7°C
(45°F)		4°C
(40°F)		-2°C
(29°F)		-7°C
(20°F)		-8°C
(18°F)
Minimum-15°C
(5°F)		-16°C
(4°F)		-13°C
(9°F)		-7°C
(20°F)		-0°C
(32°F)		5°C
(42°F)		8°C
(47°F)		6°C
(43°F)		0°C
(33°F)		-4°C
(26°F)		-9°C
(16°F)		-13°C
(10°F)

Compare climate in Sarpsborg with other places

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

Monthly average precipitation in Sarpsborg, Norway

Sarpsborg usually has the most precipitation in July, September and October, with an average of 12 rainy days and 102 mm (4.0 inches) of precipitation per month. The driest months in Sarpsborg are January, March and April. On average, 48 mm (1.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sarpsborg. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)54 (2.1)59 (2.3)59 (2.3)31 (1.2)68 (2.7)74 (2.9)88 (3.5)86 (3.4)101 (4.0)117 (4.6)88 (3.5)87 (3.4)
Average precipitation days (≥ 1 mm)910961112111411141315

Monthly sunshine hours in Sarpsborg, Norway

The sunniest months in Sarpsborg are May, June and July, when the sun shines an average of 14 hours 52 minutes a day. Least sunny months in Sarpsborg: January, November and December receive an average of 3 hours 33 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sarpsborg. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours9117928737242946347540929023513799
Mean daily daylight hours6h 58m9h 14m11h 52m14h 33m17h 1m18h 26m17h 40m15h 23m12h 46m10h 6m7h 38m6h 12m

Solar UV radiation in Sarpsborg, Norway

Sarpsborg 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, 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 Sarpsborg UV Index data.

Average daily maximum UV levels by month for Sarpsborg. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)113457754211