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Monthly climate in Rauma, Finland

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Rauma features a humid continental climate (Dfb). Temperatures typically range between -2 °C (28 °F) and 17 °C (63 °F) through the year, but rarely can drop to -17 °C (1 °F) or can rise to as high as 26 °C (79 °F). The average annual precipitation amounts to about 738 mm (29.1 inches) and receives 135 rainy days on the 1 mm (0.04 inches) threshold annually. Rauma enjoys an average of 3374 hours of sunshine throughout the year, and daylight varies from 5 hours 37 minutes to 19 hours 8 minutes per day.

Monthly average temperatures in Rauma, Finland

The warmest months in Rauma are June, July and August, with daily mean temperatures ranging from 14 to 17 °C (57 - 63 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from -2 to 0 °C (28 - 32 °F) throughout the day. On average each year, Rauma experiences 0 days above 25 °C (77.0 °F) and 76 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Rauma. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum6°C
(44°F)		6°C
(43°F)		7°C
(46°F)		16°C
(61°F)		19°C
(66°F)		25°C
(78°F)		26°C
(79°F)		25°C
(77°F)		22°C
(71°F)		15°C
(60°F)		12°C
(54°F)		6°C
(44°F)
Mean maximum5°C
(41°F)		4°C
(39°F)		6°C
(43°F)		10°C
(51°F)		16°C
(61°F)		20°C
(68°F)		24°C
(75°F)		22°C
(71°F)		19°C
(66°F)		13°C
(56°F)		10°C
(50°F)		6°C
(43°F)
Average high1°C
(34°F)		-1°C
(31°F)		1°C
(35°F)		5°C
(41°F)		9°C
(49°F)		16°C
(60°F)		18°C
(65°F)		18°C
(65°F)		14°C
(58°F)		9°C
(49°F)		6°C
(42°F)		2°C
(36°F)
Daily mean-1°C
(31°F)		-2°C
(28°F)		-0°C
(32°F)		3°C
(38°F)		8°C
(46°F)		14°C
(57°F)		17°C
(63°F)		17°C
(62°F)		13°C
(55°F)		8°C
(47°F)		5°C
(41°F)		1°C
(34°F)
Average low-2°C
(29°F)		-4°C
(25°F)		-2°C
(29°F)		2°C
(35°F)		6°C
(43°F)		12°C
(54°F)		15°C
(60°F)		15°C
(60°F)		11°C
(53°F)		7°C
(45°F)		3°C
(38°F)		-0°C
(32°F)
Mean minimum-10°C
(14°F)		-12°C
(10°F)		-9°C
(16°F)		-2°C
(28°F)		1°C
(34°F)		8°C
(48°F)		12°C
(53°F)		11°C
(52°F)		7°C
(45°F)		1°C
(34°F)		-2°C
(28°F)		-6°C
(22°F)
Minimum-15°C
(5°F)		-15°C
(5°F)		-17°C
(1°F)		-3°C
(26°F)		0°C
(32°F)		6°C
(42°F)		10°C
(51°F)		10°C
(49°F)		5°C
(41°F)		-1°C
(31°F)		-6°C
(22°F)		-14°C
(8°F)

Compare climate in Rauma with other places

Compare temperature, precipitation, sunshine, UV index in Rauma, Finland with other places around the world.

Monthly average precipitation in Rauma, Finland

Rauma usually has the most precipitation in August, September and October, with an average of 14 rainy days and 88 mm (3.5 inches) of precipitation per month. The driest months in Rauma are February, April and May. On average, 39 mm (1.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Rauma. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)46 (1.8)42 (1.7)43 (1.7)36 (1.4)39 (1.5)42 (1.7)77 (3.0)83 (3.3)81 (3.2)101 (4.0)73 (2.9)76 (3.0)
Average precipitation days (≥ 1 mm)11910777101413171416

Monthly sunshine hours in Rauma, Finland

The sunniest months in Rauma are May, June and July, when the sun shines an average of 15 hours 39 minutes a day. Least sunny months in Rauma: January, November and December receive an average of 2 hours 30 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Rauma. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours5615826635945349449242030019711163
Mean daily daylight hours6h 30m9h 0m11h 51m14h 45m17h 29m19h 8m18h 14m15h 40m12h 49m9h 57m7h 14m5h 37m

Solar UV radiation in Rauma, Finland

Rauma experiences the highest level of ultraviolet (UV) radiation in June, July and August, 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 Rauma UV Index data.

Average daily maximum UV levels by month for Rauma. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)113456653211