nomadseason

Monthly climate in Hvolsvoellur, Iceland

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Hvolsvoellur features a subpolar climate (Cfc). Temperatures typically range between 1 °C (34 °F) and 12 °C (53 °F) through the year, but rarely can drop to -14 °C (7 °F) or can rise to as high as 22 °C (72 °F). The average annual precipitation amounts to about 1641 mm (64.6 inches) and receives 212 rainy days on the 1 mm (0.04 inches) threshold annually. Hvolsvoellur enjoys an average of 2190 hours of sunshine throughout the year, and daylight varies from 4 hours 31 minutes to 20 hours 32 minutes per day.

Monthly average temperatures in Hvolsvoellur, Iceland

The warmest months in Hvolsvoellur 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 1 to 1 °C (34 - 35 °F) throughout the day. On average each year, Hvolsvoellur experiences 0 days above 25 °C (77.0 °F) and 94 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Hvolsvoellur. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum10°C
(50°F)		10°C
(50°F)		10°C
(49°F)		13°C
(56°F)		16°C
(60°F)		20°C
(68°F)		22°C
(72°F)		18°C
(66°F)		16°C
(61°F)		13°C
(56°F)		11°C
(53°F)		10°C
(50°F)
Mean maximum8°C
(47°F)		8°C
(47°F)		8°C
(47°F)		11°C
(52°F)		14°C
(57°F)		16°C
(61°F)		20°C
(69°F)		17°C
(63°F)		15°C
(59°F)		12°C
(54°F)		9°C
(49°F)		9°C
(48°F)
Average high3°C
(38°F)		3°C
(38°F)		4°C
(39°F)		7°C
(44°F)		9°C
(49°F)		12°C
(54°F)		14°C
(58°F)		14°C
(57°F)		11°C
(52°F)		8°C
(46°F)		4°C
(39°F)		3°C
(37°F)
Daily mean1°C
(34°F)		1°C
(35°F)		2°C
(36°F)		4°C
(40°F)		7°C
(45°F)		10°C
(50°F)		12°C
(53°F)		11°C
(53°F)		9°C
(48°F)		5°C
(42°F)		2°C
(36°F)		1°C
(34°F)
Average low-1°C
(30°F)		-1°C
(31°F)		-1°C
(31°F)		2°C
(35°F)		4°C
(40°F)		7°C
(45°F)		9°C
(49°F)		9°C
(48°F)		6°C
(44°F)		3°C
(38°F)		-0°C
(32°F)		-1°C
(31°F)
Mean minimum-8°C
(18°F)		-8°C
(18°F)		-7°C
(19°F)		-6°C
(22°F)		-1°C
(31°F)		4°C
(40°F)		6°C
(43°F)		5°C
(42°F)		0°C
(33°F)		-3°C
(27°F)		-7°C
(20°F)		-8°C
(19°F)
Minimum-12°C
(10°F)		-14°C
(7°F)		-13°C
(10°F)		-12°C
(11°F)		-3°C
(26°F)		3°C
(37°F)		3°C
(38°F)		3°C
(38°F)		-2°C
(29°F)		-6°C
(21°F)		-10°C
(15°F)		-9°C
(16°F)

Compare climate in Hvolsvoellur with other places

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

Monthly average precipitation in Hvolsvoellur, Iceland

Hvolsvoellur usually has the most precipitation in February, September and December, with an average of 19 rainy days and 177 mm (7.0 inches) of precipitation per month. The driest months in Hvolsvoellur are June, July and August. On average, 97 mm (3.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Hvolsvoellur. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)153 (6.0)182 (7.2)138 (5.4)132 (5.2)126 (5.0)98 (3.9)92 (3.6)100 (3.9)194 (7.6)123 (4.9)149 (5.9)154 (6.1)
Average precipitation days (≥ 1 mm)151920181918171622161517

Monthly sunshine hours in Hvolsvoellur, Iceland

The sunniest months in Hvolsvoellur are May, June and July, when the sun shines an average of 10 hours 0 minutes a day. Least sunny months in Hvolsvoellur: 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 Hvolsvoellur. 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 39m8h 37m11h 50m15h 6m18h 21m20h 32m19h 17m16h 8m12h 54m9h 41m6h 32m4h 31m

Solar UV radiation in Hvolsvoellur, Iceland

Hvolsvoellur 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 Hvolsvoellur UV Index data.

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