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Monthly climate in Sem, Vestfold og Telemark, Norway

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Sem features a oceanic climate (Cfb).Temperatures typically range between 0 °C (32 °F) and 18 °C (64 °F) through the year, but rarely can drop to -13 °C (8 °F) or can rise to as high as 31 °C (87 °F).The average annual precipitation amounts to about 1169 mm (46.0 inches) and receives 142 rainy days on the 1 mm (0.04 inches) threshold annually.Sem enjoys an average of 3482 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 Sem, Vestfold og Telemark, Norway §

The warmest months in Sem are June, July and August, with daily mean temperatures ranging from 16 to 18 °C (61 - 64 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 0 to 1 °C (32 - 34 °F) throughout the day. On average each year, Sem experiences 5 days above 25 °C (77.0 °F) and 79 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Sem, 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 11°C
(51°F)		 9°C
(49°F)		 14°C
(58°F)		 20°C
(67°F)		 27°C
(81°F)		 27°C
(81°F)		 31°C
(87°F)		 26°C
(79°F)		 23°C
(73°F)		 17°C
(62°F)		 14°C
(57°F)		 9°C
(49°F)
Mean maximum 8°C
(46°F)		 7°C
(45°F)		 12°C
(53°F)		 17°C
(63°F)		 22°C
(71°F)		 23°C
(74°F)		 26°C
(79°F)		 24°C
(75°F)		 20°C
(68°F)		 15°C
(59°F)		 12°C
(53°F)		 8°C
(47°F)
Average high 2°C
(36°F)		 2°C
(36°F)		 5°C
(41°F)		 10°C
(50°F)		 14°C
(58°F)		 19°C
(67°F)		 21°C
(70°F)		 19°C
(67°F)		 16°C
(61°F)		 11°C
(52°F)		 6°C
(43°F)		 2°C
(37°F)
Daily mean 0°C
(33°F)		 -0°C
(32°F)		 2°C
(36°F)		 6°C
(43°F)		 11°C
(52°F)		 16°C
(61°F)		 18°C
(64°F)		 17°C
(62°F)		 13°C
(56°F)		 9°C
(48°F)		 4°C
(40°F)		 1°C
(34°F)
Average low -2°C
(29°F)		 -2°C
(28°F)		 -1°C
(31°F)		 2°C
(37°F)		 7°C
(45°F)		 13°C
(55°F)		 14°C
(58°F)		 14°C
(57°F)		 11°C
(52°F)		 7°C
(44°F)		 3°C
(37°F)		 -1°C
(31°F)
Mean minimum -8°C
(17°F)		 -9°C
(16°F)		 -7°C
(20°F)		 -3°C
(28°F)		 2°C
(36°F)		 9°C
(48°F)		 11°C
(52°F)		 10°C
(50°F)		 7°C
(45°F)		 1°C
(34°F)		 -4°C
(24°F)		 -6°C
(21°F)
Minimum -13°C
(9°F)		 -13°C
(8°F)		 -12°C
(10°F)		 -6°C
(21°F)		 1°C
(33°F)		 6°C
(44°F)		 9°C
(49°F)		 9°C
(48°F)		 5°C
(40°F)		 -1°C
(30°F)		 -7°C
(19°F)		 -9°C
(16°F)

Compare climate in Sem with other places

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

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

Sem usually has the most precipitation in September, October and November, with an average of 15 rainy days and 140 mm (5.5 inches) of precipitation per month.The driest months in Sem are January, March and April. On average, 63 mm (2.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sem, 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) 75 (2.9) 80 (3.1) 77 (3.0) 37 (1.5) 79 (3.1) 90 (3.6) 93 (3.7) 90 (3.5) 138 (5.4) 155 (6.1) 128 (5.1) 127 (5.0)
Average precipitation days (≥ 1 mm) 9 11 9 5 11 11 11 13 14 15 16 17

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

The sunniest months in Sem are May, June and July, when the sun shines an average of 14 hours 51 minutes a day.Least sunny months in Sem: January, November and December receive an average of 3 hours 36 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sem, 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 93 182 289 371 428 463 475 411 290 237 137 100
Mean daily daylight hours 6h 58m 9h 14m 11h 52m 14h 33m 17h 1m 18h 26m 17h 40m 15h 23m 12h 46m 10h 6m 7h 37m 6h 12m

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

Sem 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 Sem UV Index data.

Average daily maximum UV levels by month for Sem, 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 1 3 4 5 7 7 5 4 2 1 1