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Monthly climate in Marstal, Denmark

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Marstal features a oceanic climate (Cfb). Temperatures typically range between 3 °C (38 °F) and 18 °C (65 °F) through the year, but rarely can drop to -8 °C (17 °F) or can rise to as high as 26 °C (78 °F). The average annual precipitation amounts to about 849 mm (33.4 inches) and receives 154 rainy days on the 1 mm (0.04 inches) threshold annually. Marstal enjoys an average of 3455 hours of sunshine throughout the year, and daylight varies from 7 hours 17 minutes to 17 hours 13 minutes per day.

Monthly average temperatures in Marstal, Denmark

The warmest months in Marstal are June, July and August, with daily mean temperatures ranging from 16 to 18 °C (62 - 65 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 3 to 4 °C (38 - 40 °F) throughout the day. On average each year, Marstal experiences 0 days above 25 °C (77.0 °F) and 16 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Marstal. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum10°C
(51°F)		11°C
(52°F)		11°C
(51°F)		14°C
(58°F)		18°C
(66°F)		23°C
(74°F)		26°C
(78°F)		26°C
(78°F)		23°C
(75°F)		18°C
(65°F)		16°C
(62°F)		10°C
(50°F)
Mean maximum8°C
(47°F)		8°C
(47°F)		9°C
(49°F)		12°C
(54°F)		17°C
(62°F)		20°C
(69°F)		23°C
(74°F)		23°C
(73°F)		21°C
(69°F)		17°C
(63°F)		14°C
(57°F)		9°C
(48°F)
Average high4°C
(40°F)		4°C
(40°F)		5°C
(42°F)		8°C
(47°F)		13°C
(55°F)		18°C
(65°F)		19°C
(67°F)		20°C
(68°F)		17°C
(63°F)		13°C
(57°F)		9°C
(49°F)		6°C
(43°F)
Daily mean3°C
(38°F)		3°C
(38°F)		4°C
(40°F)		7°C
(45°F)		11°C
(53°F)		16°C
(62°F)		18°C
(64°F)		18°C
(65°F)		16°C
(61°F)		12°C
(55°F)		8°C
(47°F)		5°C
(41°F)
Average low2°C
(36°F)		2°C
(36°F)		3°C
(37°F)		6°C
(43°F)		10°C
(50°F)		15°C
(59°F)		16°C
(62°F)		17°C
(63°F)		15°C
(58°F)		11°C
(53°F)		7°C
(46°F)		4°C
(40°F)
Mean minimum-2°C
(29°F)		-2°C
(29°F)		-1°C
(31°F)		2°C
(36°F)		6°C
(43°F)		11°C
(53°F)		14°C
(57°F)		14°C
(57°F)		12°C
(53°F)		8°C
(46°F)		3°C
(38°F)		1°C
(34°F)
Minimum-8°C
(17°F)		-6°C
(22°F)		-6°C
(22°F)		1°C
(34°F)		5°C
(41°F)		10°C
(51°F)		13°C
(55°F)		13°C
(56°F)		10°C
(51°F)		5°C
(42°F)		2°C
(36°F)		-1°C
(30°F)

Compare climate in Marstal with other places

Compare temperature, precipitation, sunshine, UV index in Marstal, Denmark with other places around the world.

Monthly average precipitation in Marstal, Denmark

Marstal usually has the most precipitation in August, October and December, with an average of 16 rainy days and 92 mm (3.6 inches) of precipitation per month. The driest months in Marstal are April, May and June. On average, 50 mm (2.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Marstal. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)73 (2.9)67 (2.6)69 (2.7)36 (1.4)59 (2.3)55 (2.2)72 (2.8)83 (3.3)72 (2.8)108 (4.2)72 (2.8)84 (3.3)
Average precipitation days (≥ 1 mm)1413128910131412171517

Monthly sunshine hours in Marstal, Denmark

The sunniest months in Marstal are May, June and July, when the sun shines an average of 14 hours 3 minutes a day. Least sunny months in Marstal: January, November and December receive an average of 4 hours 6 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Marstal. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours101186256366419433440403320249159117
Mean daily daylight hours7h 52m9h 41m11h 53m14h 8m16h 8m17h 13m16h 38m14h 50m12h 39m10h 25m8h 23m7h 17m

Solar UV radiation in Marstal, Denmark

Marstal experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 6 - 8, which corresponds to the High / Very High category of sun exposure. January, February and December are in the Low exposure category. In these months, the maximum values of the UV index do not exceed 2. For more detailed information, check out our hourly Marstal UV Index data.

Average daily maximum UV levels by month for Marstal. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)123568765321