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Monthly climate in Longyearbyen, Svalbard and Jan Mayen

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Longyearbyen features a ice cap climate ET).Temperatures typically range between -14 °C (7 °F) and 6 °C (43 °F) through the year, but rarely can drop to -30 °C (-22 °F) or can rise to as high as 16 °C (61 °F).The average annual precipitation amounts to about 538 mm (21.2 inches) and receives 126 rainy days on the 1 mm (0.04 inches) threshold annually.Longyearbyen enjoys an average of 2468 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 Longyearbyen, Svalbard and Jan Mayen §

The warmest months in Longyearbyen are June, July and August, with daily mean temperatures ranging from 2 to 6 °C (36 - 43 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from -14 to -12 °C (7 - 11 °F) throughout the day. On average each year, Longyearbyen experiences 0 days above 25 °C (77.0 °F) and 237 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Longyearbyen, Svalbard and Jan Mayen.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 2°C
(35°F)		 2°C
(36°F)		 2°C
(37°F)		 1°C
(34°F)		 6°C
(43°F)		 10°C
(50°F)		 16°C
(61°F)		 14°C
(58°F)		 8°C
(46°F)		 7°C
(44°F)		 5°C
(41°F)		 1°C
(33°F)
Mean maximum -1°C
(31°F)		 -2°C
(29°F)		 -1°C
(30°F)		 0°C
(33°F)		 2°C
(37°F)		 6°C
(44°F)		 11°C
(53°F)		 11°C
(53°F)		 7°C
(45°F)		 4°C
(39°F)		 1°C
(34°F)		 -1°C
(31°F)
Average high -10°C
(14°F)		 -10°C
(15°F)		 -12°C
(10°F)		 -8°C
(18°F)		 -3°C
(27°F)		 3°C
(37°F)		 7°C
(45°F)		 6°C
(43°F)		 3°C
(37°F)		 -2°C
(28°F)		 -6°C
(22°F)		 -7°C
(19°F)
Daily mean -12°C
(11°F)		 -12°C
(11°F)		 -14°C
(7°F)		 -10°C
(15°F)		 -4°C
(25°F)		 2°C
(36°F)		 6°C
(43°F)		 5°C
(41°F)		 2°C
(35°F)		 -4°C
(26°F)		 -8°C
(18°F)		 -9°C
(16°F)
Average low -14°C
(7°F)		 -14°C
(8°F)		 -16°C
(3°F)		 -12°C
(11°F)		 -5°C
(23°F)		 1°C
(34°F)		 4°C
(40°F)		 4°C
(39°F)		 0°C
(33°F)		 -5°C
(23°F)		 -10°C
(15°F)		 -11°C
(12°F)
Mean minimum -23°C
(-8°F)		 -24°C
(-11°F)		 -24°C
(-11°F)		 -20°C
(-5°F)		 -12°C
(10°F)		 -1°C
(31°F)		 2°C
(35°F)		 1°C
(33°F)		 -5°C
(23°F)		 -12°C
(11°F)		 -18°C
(-1°F)		 -22°C
(-6°F)
Minimum -24°C
(-12°F)		 -26°C
(-15°F)		 -30°C
(-22°F)		 -26°C
(-14°F)		 -16°C
(4°F)		 -2°C
(29°F)		 0°C
(33°F)		 -0°C
(32°F)		 -10°C
(15°F)		 -15°C
(5°F)		 -23°C
(-9°F)		 -26°C
(-14°F)

Compare climate in Longyearbyen with other places

Compare temperature, precipitation, sunshine, UV index in Longyearbyen, Svalbard and Jan Mayen with other places around the world.

Monthly average precipitation in Longyearbyen, Svalbard and Jan Mayen §

Longyearbyen usually has the most precipitation in July, September and December, with an average of 13 rainy days and 60 mm (2.4 inches) of precipitation per month.The driest months in Longyearbyen are January, June and October. On average, 33 mm (1.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Longyearbyen, Svalbard and Jan Mayen.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) 35 (1.4) 47 (1.9) 38 (1.5) 38 (1.5) 35 (1.4) 31 (1.2) 53 (2.1) 52 (2.0) 75 (3.0) 34 (1.4) 46 (1.8) 53 (2.1)
Average precipitation days (≥ 1 mm) 7 11 9 10 9 8 13 10 16 9 12 12

Monthly sunshine hours in Longyearbyen, Svalbard and Jan Mayen §

The sunniest months in Longyearbyen are May, June and July, when the sun shines an average of 14 hours 52 minutes a day.Least sunny months in Longyearbyen: January, November and December receive an average of 0 hours 0 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Longyearbyen, Svalbard and Jan Mayen.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 0 14 221 387 495 472 399 307 131 38 0 0
Mean daily daylight hours 0h 0m 4h 27m 11h 33m 20h 52m 24h 0m 24h 0m 24h 0m 23h 7m 14h 16m 6h 48m 0h 0m 0h 0m

Solar UV radiation in Longyearbyen, Svalbard and Jan Mayen §

Longyearbyen experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 3 - 3, which corresponds to the Moderate 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 0. For more detailed information, check out our hourly Longyearbyen UV Index data.

Average daily maximum UV levels by month for Longyearbyen, Svalbard and Jan Mayen.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) 0 1 1 2 3 3 3 2 1 1 0 0