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Monthly climate in Heinaevesi, South Savo, Finland

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Heinaevesi features a subarctic climate (Dfc).Temperatures typically range between -7 °C (20 °F) and 17 °C (63 °F) through the year, but rarely can drop to -28 °C (-19 °F) or can rise to as high as 32 °C (90 °F).The average annual precipitation amounts to about 776 mm (30.6 inches) and receives 153 rainy days on the 1 mm (0.04 inches) threshold annually.Heinaevesi enjoys an average of 2970 hours of sunshine throughout the year, and daylight varies from 5 hours 7 minutes to 19 hours 44 minutes per day.

Monthly average temperatures in Heinaevesi, South Savo, Finland §

The warmest months in Heinaevesi are June, July and August, with daily mean temperatures ranging from 15 to 17 °C (60 - 63 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -7 to -4 °C (20 - 25 °F) throughout the day. On average each year, Heinaevesi experiences 9 days above 25 °C (77.0 °F) and 151 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Heinaevesi, South Savo, Finland.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 6°C
(43°F)		 5°C
(41°F)		 10°C
(51°F)		 19°C
(66°F)		 28°C
(82°F)		 32°C
(90°F)		 31°C
(88°F)		 30°C
(87°F)		 22°C
(73°F)		 18°C
(64°F)		 10°C
(50°F)		 3°C
(39°F)
Mean maximum 3°C
(38°F)		 3°C
(38°F)		 7°C
(45°F)		 12°C
(55°F)		 22°C
(72°F)		 26°C
(79°F)		 28°C
(83°F)		 25°C
(77°F)		 19°C
(66°F)		 13°C
(56°F)		 8°C
(46°F)		 2°C
(36°F)
Average high -4°C
(25°F)		 -4°C
(24°F)		 0°C
(33°F)		 5°C
(42°F)		 13°C
(55°F)		 19°C
(67°F)		 21°C
(69°F)		 19°C
(66°F)		 13°C
(55°F)		 7°C
(44°F)		 2°C
(36°F)		 -2°C
(28°F)
Daily mean -6°C
(21°F)		 -7°C
(20°F)		 -3°C
(27°F)		 2°C
(35°F)		 9°C
(48°F)		 16°C
(61°F)		 17°C
(63°F)		 15°C
(60°F)		 10°C
(50°F)		 5°C
(41°F)		 1°C
(33°F)		 -4°C
(25°F)
Average low -8°C
(17°F)		 -9°C
(15°F)		 -7°C
(20°F)		 -2°C
(29°F)		 5°C
(41°F)		 12°C
(53°F)		 13°C
(56°F)		 12°C
(54°F)		 8°C
(46°F)		 3°C
(38°F)		 -1°C
(31°F)		 -5°C
(22°F)
Mean minimum -23°C
(-10°F)		 -21°C
(-5°F)		 -18°C
(-0°F)		 -9°C
(16°F)		 -2°C
(28°F)		 6°C
(43°F)		 8°C
(47°F)		 8°C
(47°F)		 2°C
(36°F)		 -3°C
(26°F)		 -10°C
(15°F)		 -13°C
(9°F)
Minimum -28°C
(-19°F)		 -27°C
(-16°F)		 -26°C
(-14°F)		 -13°C
(9°F)		 -4°C
(25°F)		 2°C
(35°F)		 7°C
(45°F)		 7°C
(45°F)		 -0°C
(32°F)		 -6°C
(22°F)		 -15°C
(5°F)		 -23°C
(-9°F)

Compare climate in Heinaevesi with other places

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

Monthly average precipitation in Heinaevesi, South Savo, Finland §

Heinaevesi usually has the most precipitation in July, August and September, with an average of 13 rainy days and 84 mm (3.3 inches) of precipitation per month.The driest months in Heinaevesi are February, March and April. On average, 45 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Heinaevesi, South Savo, Finland.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 49 (1.9) 44 (1.7) 47 (1.8) 43 (1.7) 61 (2.4) 67 (2.6) 81 (3.2) 87 (3.4) 85 (3.4) 79 (3.1) 64 (2.5) 70 (2.7)
Average precipitation days (≥ 1 mm) 12 12 12 9 12 10 12 14 14 16 14 16

Monthly sunshine hours in Heinaevesi, South Savo, Finland §

The sunniest months in Heinaevesi are May, June and July, when the sun shines an average of 14 hours 54 minutes a day.Least sunny months in Heinaevesi: January, November and December receive an average of 1 hours 16 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Heinaevesi, South Savo, Finland.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 34 129 238 337 413 484 474 379 249 146 56 26
Mean daily daylight hours 6h 6m 8h 49m 11h 50m 14h 55m 17h 53m 19h 44m 18h 43m 15h 54m 12h 52m 9h 50m 6h 55m 5h 7m

Solar UV radiation in Heinaevesi, South Savo, Finland §

Heinaevesi 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 Heinaevesi UV Index data.

Average daily maximum UV levels by month for Heinaevesi, South Savo, Finland.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 1 1 3 4 5 6 6 5 3 2 1 1