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Monthly climate in Harstad, Troms og Finnmark, Norway

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Harstad features a subarctic climate (Dfc).Temperatures typically range between -5 °C (22 °F) and 13 °C (55 °F) through the year, but rarely can drop to -24 °C (-11 °F) or can rise to as high as 28 °C (82 °F).The average annual precipitation amounts to about 1309 mm (51.5 inches) and receives 198 rainy days on the 1 mm (0.04 inches) threshold annually.Harstad enjoys an average of 2984 hours of sunshine throughout the year, and daylight varies from 0 hours 0 minutes to 24 hours 0 minutes per day.

Monthly average temperatures in Harstad, Troms og Finnmark, Norway §

The warmest months in Harstad are June, July and August, with daily mean temperatures ranging from 10 to 13 °C (51 - 55 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -5 to -3 °C (22 - 26 °F) throughout the day. On average each year, Harstad experiences 1 days above 25 °C (77.0 °F) and 152 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Harstad, Troms og Finnmark, 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 8°C
(46°F)		 7°C
(45°F)		 8°C
(46°F)		 17°C
(62°F)		 22°C
(71°F)		 23°C
(74°F)		 28°C
(82°F)		 27°C
(81°F)		 21°C
(70°F)		 17°C
(62°F)		 10°C
(51°F)		 8°C
(46°F)
Mean maximum 6°C
(43°F)		 6°C
(42°F)		 6°C
(42°F)		 10°C
(51°F)		 17°C
(63°F)		 21°C
(69°F)		 24°C
(75°F)		 22°C
(72°F)		 18°C
(65°F)		 14°C
(57°F)		 9°C
(48°F)		 7°C
(44°F)
Average high -2°C
(29°F)		 -3°C
(27°F)		 0°C
(33°F)		 4°C
(39°F)		 8°C
(47°F)		 13°C
(55°F)		 16°C
(60°F)		 15°C
(59°F)		 11°C
(53°F)		 6°C
(43°F)		 2°C
(36°F)		 -1°C
(31°F)
Daily mean -5°C
(24°F)		 -5°C
(22°F)		 -3°C
(28°F)		 1°C
(34°F)		 6°C
(42°F)		 10°C
(51°F)		 13°C
(55°F)		 12°C
(54°F)		 9°C
(48°F)		 4°C
(39°F)		 0°C
(33°F)		 -3°C
(26°F)
Average low -7°C
(20°F)		 -8°C
(17°F)		 -6°C
(22°F)		 -3°C
(28°F)		 3°C
(37°F)		 7°C
(46°F)		 10°C
(50°F)		 10°C
(49°F)		 6°C
(44°F)		 2°C
(36°F)		 -2°C
(29°F)		 -6°C
(21°F)
Mean minimum -18°C
(0°F)		 -17°C
(1°F)		 -15°C
(5°F)		 -10°C
(13°F)		 -4°C
(25°F)		 4°C
(40°F)		 6°C
(43°F)		 5°C
(42°F)		 1°C
(34°F)		 -5°C
(24°F)		 -12°C
(11°F)		 -14°C
(7°F)
Minimum -24°C
(-11°F)		 -20°C
(-4°F)		 -21°C
(-6°F)		 -12°C
(11°F)		 -6°C
(22°F)		 1°C
(34°F)		 6°C
(43°F)		 4°C
(40°F)		 -1°C
(31°F)		 -7°C
(20°F)		 -20°C
(-4°F)		 -19°C
(-2°F)

Compare climate in Harstad with other places

Compare temperature, precipitation, sunshine, UV index in Harstad, Troms og Finnmark, Norway with other places around the world.

Monthly average precipitation in Harstad, Troms og Finnmark, Norway §

Harstad usually has the most precipitation in March, August and September, with an average of 18 rainy days and 131 mm (5.2 inches) of precipitation per month.The driest months in Harstad are January, May and December. On average, 94 mm (3.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Harstad, Troms og Finnmark, 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) 98 (3.9) 107 (4.2) 136 (5.4) 100 (3.9) 85 (3.4) 117 (4.6) 101 (4.0) 127 (5.0) 130 (5.1) 103 (4.0) 109 (4.3) 97 (3.8)
Average precipitation days (≥ 1 mm) 14 14 19 18 15 17 13 20 17 16 19 16

Monthly sunshine hours in Harstad, Troms og Finnmark, Norway §

The sunniest months in Harstad are May, June and July, when the sun shines an average of 15 hours 5 minutes a day.Least sunny months in Harstad: January, November and December receive an average of 0 hours 31 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Harstad, Troms og Finnmark, 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 16 111 241 339 454 461 472 383 289 180 32 0
Mean daily daylight hours 5h 49m 7h 33m 11h 46m 16h 2m 21h 33m 24h 0m 23h 8m 17h 32m 13h 10m 9h 1m 7h 59m 0h 0m

Solar UV radiation in Harstad, Troms og Finnmark, Norway §

Harstad experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 4 - 5, which corresponds to the Moderate category of sun exposure.February, October 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 Harstad UV Index data.

Average daily maximum UV levels by month for Harstad, Troms og Finnmark, 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 2 3 4 5 5 4 3 1 1 0