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Monthly climate in Raisio, Finland

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Raisio features a humid continental climate (Dfb). Temperatures typically range between -3 °C (26 °F) and 18 °C (64 °F) through the year, but rarely can drop to -25 °C (-13 °F) or can rise to as high as 33 °C (91 °F). The average annual precipitation amounts to about 719 mm (28.3 inches) and receives 128 rainy days on the 1 mm (0.04 inches) threshold annually. Raisio enjoys an average of 3444 hours of sunshine throughout the year, and daylight varies from 5 hours 52 minutes to 18 hours 50 minutes per day.

Monthly average temperatures in Raisio, Finland

The warmest months in Raisio are June, July and August, with daily mean temperatures ranging from 16 to 18 °C (61 - 64 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -3 to 0 °C (26 - 31 °F) throughout the day. On average each year, Raisio experiences 13 days above 25 °C (77.0 °F) and 121 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Raisio. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum8°C
(47°F)		7°C
(45°F)		13°C
(55°F)		21°C
(71°F)		28°C
(83°F)		30°C
(86°F)		33°C
(91°F)		29°C
(84°F)		23°C
(74°F)		17°C
(63°F)		13°C
(56°F)		7°C
(45°F)
Mean maximum5°C
(41°F)		5°C
(42°F)		10°C
(51°F)		16°C
(62°F)		24°C
(75°F)		25°C
(77°F)		29°C
(85°F)		25°C
(77°F)		21°C
(71°F)		15°C
(60°F)		11°C
(51°F)		6°C
(43°F)
Average high-0°C
(32°F)		-1°C
(31°F)		3°C
(38°F)		9°C
(48°F)		14°C
(58°F)		21°C
(69°F)		22°C
(72°F)		20°C
(69°F)		15°C
(60°F)		9°C
(49°F)		5°C
(42°F)		1°C
(34°F)
Daily mean-2°C
(28°F)		-3°C
(26°F)		-0°C
(31°F)		4°C
(40°F)		10°C
(50°F)		16°C
(61°F)		18°C
(64°F)		16°C
(62°F)		12°C
(54°F)		7°C
(45°F)		3°C
(38°F)		-0°C
(31°F)
Average low-5°C
(24°F)		-7°C
(20°F)		-4°C
(24°F)		-0°C
(32°F)		4°C
(40°F)		10°C
(51°F)		13°C
(55°F)		12°C
(54°F)		8°C
(47°F)		4°C
(40°F)		1°C
(35°F)		-2°C
(28°F)
Mean minimum-18°C
(1°F)		-18°C
(-0°F)		-15°C
(5°F)		-8°C
(18°F)		-3°C
(26°F)		5°C
(42°F)		7°C
(44°F)		6°C
(43°F)		0°C
(33°F)		-4°C
(24°F)		-6°C
(21°F)		-10°C
(14°F)
Minimum-25°C
(-13°F)		-24°C
(-11°F)		-25°C
(-12°F)		-12°C
(10°F)		-5°C
(24°F)		2°C
(36°F)		5°C
(40°F)		4°C
(40°F)		-3°C
(28°F)		-6°C
(21°F)		-9°C
(15°F)		-21°C
(-5°F)

Compare climate in Raisio with other places

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

Monthly average precipitation in Raisio, Finland

Raisio usually has the most precipitation in July, August and October, with an average of 13 rainy days and 86 mm (3.4 inches) of precipitation per month. The driest months in Raisio are February, March and April. On average, 40 mm (1.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Raisio. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)48 (1.9)42 (1.7)45 (1.8)34 (1.3)48 (1.9)45 (1.8)85 (3.4)95 (3.7)69 (2.7)78 (3.1)54 (2.1)74 (2.9)
Average precipitation days (≥ 1 mm)98109107111312151014

Monthly sunshine hours in Raisio, Finland

The sunniest months in Raisio are May, June and July, when the sun shines an average of 15 hours 39 minutes a day. Least sunny months in Raisio: January, November and December receive an average of 2 hours 46 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Raisio. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours6215827437245749448842131220812666
Mean daily daylight hours6h 41m9h 5m11h 51m14h 40m17h 18m18h 50m18h 0m15h 33m12h 48m10h 1m7h 24m5h 52m

Solar UV radiation in Raisio, Finland

Raisio experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 5 - 7, which corresponds to the Moderate / High category of sun exposure. January, November 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 Raisio UV Index data.

Average daily maximum UV levels by month for Raisio. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)123457754211