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Monthly climate in Ulefoss, Norway

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Ulefoss features a humid continental climate (Dfb). Temperatures typically range between -2 °C (28 °F) and 17 °C (63 °F) through the year, but rarely can drop to -17 °C (2 °F) or can rise to as high as 30 °C (86 °F). The average annual precipitation amounts to about 1197 mm (47.1 inches) and receives 145 rainy days on the 1 mm (0.04 inches) threshold annually. Ulefoss enjoys an average of 3411 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 Ulefoss, Norway

The warmest months in Ulefoss 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 -2 to -1 °C (28 - 30 °F) throughout the day. On average each year, Ulefoss experiences 9 days above 25 °C (77.0 °F) and 126 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Ulefoss. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum10°C
(50°F)		11°C
(52°F)		15°C
(60°F)		21°C
(71°F)		27°C
(81°F)		28°C
(83°F)		30°C
(86°F)		25°C
(78°F)		25°C
(77°F)		18°C
(64°F)		14°C
(58°F)		10°C
(50°F)
Mean maximum7°C
(45°F)		7°C
(45°F)		12°C
(53°F)		17°C
(64°F)		23°C
(74°F)		24°C
(76°F)		26°C
(80°F)		24°C
(76°F)		21°C
(70°F)		15°C
(59°F)		12°C
(53°F)		7°C
(46°F)
Average high0°C
(33°F)		1°C
(34°F)		5°C
(41°F)		10°C
(50°F)		15°C
(59°F)		20°C
(68°F)		21°C
(70°F)		19°C
(67°F)		15°C
(60°F)		10°C
(50°F)		5°C
(41°F)		1°C
(34°F)
Daily mean-2°C
(28°F)		-2°C
(29°F)		1°C
(33°F)		5°C
(41°F)		10°C
(51°F)		15°C
(60°F)		17°C
(63°F)		15°C
(60°F)		12°C
(54°F)		7°C
(45°F)		3°C
(37°F)		-1°C
(30°F)
Average low-5°C
(24°F)		-5°C
(23°F)		-4°C
(26°F)		-0°C
(32°F)		5°C
(41°F)		10°C
(51°F)		12°C
(54°F)		11°C
(52°F)		9°C
(48°F)		4°C
(40°F)		0°C
(33°F)		-3°C
(27°F)
Mean minimum-13°C
(8°F)		-13°C
(9°F)		-12°C
(11°F)		-7°C
(20°F)		-2°C
(29°F)		6°C
(43°F)		8°C
(46°F)		6°C
(43°F)		4°C
(39°F)		-2°C
(28°F)		-7°C
(19°F)		-9°C
(16°F)
Minimum-17°C
(2°F)		-17°C
(2°F)		-16°C
(4°F)		-12°C
(11°F)		-7°C
(20°F)		3°C
(38°F)		7°C
(44°F)		5°C
(41°F)		2°C
(36°F)		-3°C
(27°F)		-11°C
(12°F)		-11°C
(12°F)

Compare climate in Ulefoss with other places

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

Monthly average precipitation in Ulefoss, Norway

Ulefoss usually has the most precipitation in September, October and December, with an average of 15 rainy days and 137 mm (5.4 inches) of precipitation per month. The driest months in Ulefoss are January, February and April. On average, 65 mm (2.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Ulefoss. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)76 (3.0)80 (3.1)82 (3.2)41 (1.6)87 (3.4)97 (3.8)107 (4.2)96 (3.8)130 (5.1)141 (5.5)121 (4.8)140 (5.5)
Average precipitation days (≥ 1 mm)9121071211121313161416

Monthly sunshine hours in Ulefoss, Norway

The sunniest months in Ulefoss are May, June and July, when the sun shines an average of 14 hours 34 minutes a day. Least sunny months in Ulefoss: January, November and December receive an average of 3 hours 31 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Ulefoss. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours9617728636841945047140328022813295
Mean daily daylight hours6h 58m9h 14m11h 52m14h 33m17h 1m18h 26m17h 40m15h 23m12h 46m10h 6m7h 38m6h 12m

Solar UV radiation in Ulefoss, Norway

Ulefoss 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 Ulefoss UV Index data.

Average daily maximum UV levels by month for Ulefoss. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)123457754211