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Monthly climate in Vestmannaeyjar, Iceland

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Vestmannaeyjar features a subpolar climate (Cfc). Temperatures typically range between 3 °C (38 °F) and 12 °C (53 °F) through the year, but rarely can drop to -8 °C (17 °F) or can rise to as high as 18 °C (65 °F). The average annual precipitation amounts to about 1922 mm (75.7 inches) and receives 221 rainy days on the 1 mm (0.04 inches) threshold annually. Vestmannaeyjar enjoys an average of 2190 hours of sunshine throughout the year, and daylight varies from 4 hours 40 minutes to 20 hours 20 minutes per day.

Monthly average temperatures in Vestmannaeyjar, Iceland

The warmest months in Vestmannaeyjar are June, July and August, with daily mean temperatures ranging from 10 to 12 °C (50 - 53 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 3 to 4 °C (38 - 39 °F) throughout the day. On average each year, Vestmannaeyjar experiences 0 days above 25 °C (77.0 °F) and 40 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Vestmannaeyjar. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum10°C
(50°F)		10°C
(49°F)		10°C
(50°F)		11°C
(52°F)		13°C
(55°F)		16°C
(62°F)		18°C
(65°F)		16°C
(62°F)		14°C
(58°F)		12°C
(54°F)		11°C
(52°F)		10°C
(50°F)
Mean maximum9°C
(48°F)		9°C
(48°F)		9°C
(48°F)		10°C
(50°F)		12°C
(54°F)		14°C
(57°F)		17°C
(62°F)		16°C
(60°F)		14°C
(57°F)		11°C
(53°F)		10°C
(50°F)		10°C
(49°F)
Average high5°C
(41°F)		5°C
(41°F)		5°C
(41°F)		7°C
(45°F)		9°C
(48°F)		11°C
(52°F)		13°C
(55°F)		13°C
(56°F)		11°C
(52°F)		8°C
(47°F)		6°C
(42°F)		5°C
(41°F)
Daily mean3°C
(38°F)		3°C
(38°F)		4°C
(39°F)		5°C
(42°F)		7°C
(45°F)		10°C
(50°F)		12°C
(53°F)		12°C
(53°F)		10°C
(50°F)		7°C
(45°F)		4°C
(40°F)		4°C
(39°F)
Average low1°C
(35°F)		2°C
(35°F)		2°C
(36°F)		4°C
(39°F)		6°C
(43°F)		8°C
(47°F)		10°C
(51°F)		10°C
(51°F)		8°C
(47°F)		5°C
(42°F)		3°C
(37°F)		2°C
(36°F)
Mean minimum-4°C
(25°F)		-4°C
(26°F)		-3°C
(27°F)		-2°C
(28°F)		2°C
(36°F)		6°C
(43°F)		8°C
(47°F)		8°C
(47°F)		4°C
(39°F)		1°C
(34°F)		-2°C
(29°F)		-3°C
(27°F)
Minimum-5°C
(22°F)		-8°C
(17°F)		-6°C
(21°F)		-7°C
(20°F)		1°C
(34°F)		5°C
(41°F)		7°C
(45°F)		7°C
(45°F)		2°C
(36°F)		-2°C
(29°F)		-4°C
(24°F)		-4°C
(26°F)

Compare climate in Vestmannaeyjar with other places

Compare temperature, precipitation, sunshine, UV index in Vestmannaeyjar, Iceland with other places around the world.

Monthly average precipitation in Vestmannaeyjar, Iceland

Vestmannaeyjar usually has the most precipitation in February, September and December, with an average of 21 rainy days and 207 mm (8.2 inches) of precipitation per month. The driest months in Vestmannaeyjar are June, July and August. On average, 110 mm (4.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Vestmannaeyjar. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)177 (7.0)212 (8.3)165 (6.5)161 (6.3)143 (5.6)105 (4.1)109 (4.3)117 (4.6)220 (8.7)152 (6.0)172 (6.8)189 (7.5)
Average precipitation days (≥ 1 mm)172221191916171422181719

Monthly sunshine hours in Vestmannaeyjar, Iceland

The sunniest months in Vestmannaeyjar are May, June and July, when the sun shines an average of 10 hours 0 minutes a day. Least sunny months in Vestmannaeyjar: January, November and December receive an average of 1 hours 44 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Vestmannaeyjar. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours43901822053033242932911981428135
Mean daily daylight hours5h 46m8h 40m11h 50m15h 4m18h 14m20h 20m19h 8m16h 5m12h 54m9h 43m6h 38m4h 40m

Solar UV radiation in Vestmannaeyjar, Iceland

Vestmannaeyjar experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 5 - 6, 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 Vestmannaeyjar UV Index data.

Average daily maximum UV levels by month for Vestmannaeyjar. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)112356643211