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Monthly climate in Loimaa, Finland

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Loimaa features a humid continental climate (Dfb). Temperatures typically range between -4 °C (25 °F) and 18 °C (64 °F) through the year, but rarely can drop to -26 °C (-15 °F) or can rise to as high as 32 °C (90 °F). The average annual precipitation amounts to about 711 mm (28.0 inches) and receives 131 rainy days on the 1 mm (0.04 inches) threshold annually. Loimaa enjoys an average of 3352 hours of sunshine throughout the year, and daylight varies from 5 hours 43 minutes to 19 hours 1 minutes per day.

Monthly average temperatures in Loimaa, Finland

The warmest months in Loimaa 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 -4 to -1 °C (25 - 30 °F) throughout the day. On average each year, Loimaa experiences 15 days above 25 °C (77.0 °F) and 136 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Loimaa. 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
(70°F)		27°C
(81°F)		32°C
(89°F)		32°C
(90°F)		30°C
(87°F)		24°C
(75°F)		18°C
(64°F)		13°C
(56°F)		6°C
(43°F)
Mean maximum4°C
(40°F)		5°C
(41°F)		11°C
(52°F)		16°C
(62°F)		24°C
(75°F)		26°C
(79°F)		29°C
(84°F)		26°C
(79°F)		21°C
(71°F)		15°C
(59°F)		11°C
(51°F)		5°C
(42°F)
Average high-1°C
(31°F)		-1°C
(30°F)		3°C
(38°F)		8°C
(47°F)		15°C
(59°F)		21°C
(70°F)		22°C
(72°F)		20°C
(69°F)		15°C
(59°F)		9°C
(48°F)		4°C
(40°F)		0°C
(33°F)
Daily mean-3°C
(27°F)		-4°C
(25°F)		-1°C
(31°F)		4°C
(39°F)		10°C
(50°F)		16°C
(61°F)		18°C
(64°F)		16°C
(61°F)		11°C
(52°F)		6°C
(43°F)		3°C
(37°F)		-1°C
(30°F)
Average low-5°C
(23°F)		-7°C
(19°F)		-5°C
(24°F)		-1°C
(30°F)		4°C
(39°F)		10°C
(51°F)		12°C
(54°F)		11°C
(53°F)		8°C
(46°F)		4°C
(39°F)		0°C
(33°F)		-3°C
(27°F)
Mean minimum-17°C
(1°F)		-19°C
(-2°F)		-16°C
(3°F)		-9°C
(17°F)		-4°C
(26°F)		4°C
(40°F)		6°C
(44°F)		5°C
(41°F)		-0°C
(32°F)		-5°C
(23°F)		-7°C
(20°F)		-10°C
(14°F)
Minimum-26°C
(-14°F)		-25°C
(-12°F)		-26°C
(-15°F)		-13°C
(9°F)		-5°C
(23°F)		2°C
(35°F)		4°C
(39°F)		4°C
(40°F)		-3°C
(26°F)		-7°C
(19°F)		-10°C
(15°F)		-20°C
(-4°F)

Compare climate in Loimaa with other places

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

Monthly average precipitation in Loimaa, Finland

Loimaa usually has the most precipitation in July, August and October, with an average of 13 rainy days and 82 mm (3.2 inches) of precipitation per month. The driest months in Loimaa are February, March and April. On average, 42 mm (1.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Loimaa. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)48 (1.9)43 (1.7)45 (1.8)39 (1.5)55 (2.2)56 (2.2)81 (3.2)88 (3.4)61 (2.4)76 (3.0)52 (2.1)67 (2.6)
Average precipitation days (≥ 1 mm)1081110108111312151013

Monthly sunshine hours in Loimaa, Finland

The sunniest months in Loimaa are May, June and July, when the sun shines an average of 15 hours 32 minutes a day. Least sunny months in Loimaa: 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 Loimaa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours5615626635845349248341629919311360
Mean daily daylight hours6h 34m9h 2m11h 51m14h 43m17h 25m19h 1m18h 8m15h 37m12h 49m9h 59m7h 18m5h 43m

Solar UV radiation in Loimaa, Finland

Loimaa 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, 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 Loimaa UV Index data.

Average daily maximum UV levels by month for Loimaa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)113457754211