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Monthly climate in Uummannaq, Greenland

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Uummannaq features a ice cap climate ET). Temperatures typically range between -17 °C (2 °F) and 6 °C (44 °F) through the year, but rarely can drop to -31 °C (-23 °F) or can rise to as high as 16 °C (62 °F). The average annual precipitation amounts to about 365 mm (14.4 inches) and receives 85 rainy days on the 1 mm (0.04 inches) threshold annually. Uummannaq enjoys an average of 2861 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 Uummannaq, Greenland

The warmest months in Uummannaq are June, July and August, with daily mean temperatures ranging from 4 to 6 °C (39 - 44 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from -17 to -14 °C (2 - 7 °F) throughout the day. On average each year, Uummannaq experiences 0 days above 25 °C (77.0 °F) and 246 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Uummannaq. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum2°C
(37°F)		-6°C
(22°F)		-1°C
(30°F)		7°C
(44°F)		10°C
(51°F)		12°C
(54°F)		16°C
(61°F)		16°C
(62°F)		8°C
(46°F)		6°C
(42°F)		5°C
(41°F)		3°C
(38°F)
Mean maximum-3°C
(27°F)		-7°C
(19°F)		-4°C
(25°F)		2°C
(37°F)		6°C
(43°F)		9°C
(49°F)		14°C
(58°F)		13°C
(56°F)		6°C
(43°F)		4°C
(39°F)		3°C
(37°F)		-1°C
(31°F)
Average high-12°C
(11°F)		-15°C
(5°F)		-14°C
(7°F)		-6°C
(21°F)		0°C
(32°F)		6°C
(43°F)		8°C
(47°F)		8°C
(47°F)		1°C
(34°F)		-2°C
(28°F)		-6°C
(22°F)		-7°C
(20°F)
Daily mean-14°C
(7°F)		-17°C
(2°F)		-16°C
(3°F)		-9°C
(17°F)		-2°C
(29°F)		4°C
(39°F)		6°C
(44°F)		6°C
(43°F)		-0°C
(32°F)		-4°C
(25°F)		-7°C
(19°F)		-8°C
(18°F)
Average low-15°C
(4°F)		-19°C
(-2°F)		-18°C
(-0°F)		-11°C
(13°F)		-4°C
(26°F)		1°C
(35°F)		4°C
(40°F)		4°C
(40°F)		-1°C
(30°F)		-5°C
(23°F)		-9°C
(16°F)		-9°C
(15°F)
Mean minimum-22°C
(-7°F)		-25°C
(-12°F)		-27°C
(-16°F)		-19°C
(-2°F)		-9°C
(15°F)		-3°C
(27°F)		1°C
(33°F)		-0°C
(32°F)		-6°C
(21°F)		-11°C
(12°F)		-15°C
(6°F)		-15°C
(5°F)
Minimum-26°C
(-15°F)		-29°C
(-21°F)		-31°C
(-23°F)		-23°C
(-9°F)		-17°C
(2°F)		-5°C
(24°F)		-2°C
(29°F)		-2°C
(29°F)		-8°C
(17°F)		-14°C
(7°F)		-16°C
(4°F)		-18°C
(-0°F)

Compare climate in Uummannaq with other places

Compare temperature, precipitation, sunshine, UV index in Uummannaq, Greenland with other places around the world.

Monthly average precipitation in Uummannaq, Greenland

Uummannaq usually has the most precipitation in July, August and November, with an average of 9 rainy days and 43 mm (1.7 inches) of precipitation per month. The driest months in Uummannaq are February, March and May. On average, 18 mm (0.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Uummannaq. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)28 (1.1)12 (0.5)23 (0.9)29 (1.2)20 (0.8)27 (1.1)57 (2.3)37 (1.4)31 (1.2)34 (1.3)36 (1.4)30 (1.2)
Average precipitation days (≥ 1 mm)63674710788109

Monthly sunshine hours in Uummannaq, Greenland

The sunniest months in Uummannaq are May, June and July, when the sun shines an average of 15 hours 12 minutes a day. Least sunny months in Uummannaq: January, November and December receive an average of 0 hours 17 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Uummannaq. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours5106220319475485438376270142200
Mean daily daylight hours3h 47m7h 0m11h 46m16h 34m22h 47m24h 0m23h 54m18h 20m13h 16m8h 38m4h 52m0h 0m

Solar UV radiation in Uummannaq, Greenland

Uummannaq experiences the highest level of ultraviolet (UV) radiation in May, June 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 Uummannaq UV Index data.

Average daily maximum UV levels by month for Uummannaq. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)112345442110