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Monthly climate in Ostroleka, Poland

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Ostroleka features a humid continental climate (Dfb). Temperatures typically range between -1 °C (30 °F) and 19 °C (67 °F) through the year, but rarely can drop to -26 °C (-15 °F) or can rise to as high as 35 °C (95 °F). The average annual precipitation amounts to about 705 mm (27.8 inches) and receives 127 rainy days on the 1 mm (0.04 inches) threshold annually. Ostroleka enjoys an average of 3264 hours of sunshine throughout the year, and daylight varies from 7 hours 37 minutes to 16 hours 50 minutes per day.

Monthly average temperatures in Ostroleka, Poland

The warmest months in Ostroleka are June, July and August, with daily mean temperatures ranging from 19 to 19 °C (67 - 67 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -1 to 1 °C (30 - 34 °F) throughout the day. On average each year, Ostroleka experiences 40 days above 25 °C (77.0 °F) and 88 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Ostroleka. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum10°C
(51°F)		15°C
(59°F)		17°C
(64°F)		27°C
(81°F)		30°C
(87°F)		35°C
(95°F)		34°C
(93°F)		34°C
(93°F)		30°C
(86°F)		23°C
(73°F)		18°C
(64°F)		11°C
(52°F)
Mean maximum8°C
(47°F)		11°C
(51°F)		16°C
(61°F)		23°C
(74°F)		26°C
(79°F)		29°C
(85°F)		31°C
(88°F)		32°C
(90°F)		28°C
(83°F)		21°C
(70°F)		15°C
(59°F)		9°C
(48°F)
Average high1°C
(34°F)		3°C
(37°F)		7°C
(45°F)		13°C
(56°F)		18°C
(65°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		19°C
(67°F)		14°C
(57°F)		7°C
(45°F)		3°C
(37°F)
Daily mean-1°C
(30°F)		-0°C
(32°F)		3°C
(38°F)		8°C
(47°F)		13°C
(56°F)		19°C
(67°F)		19°C
(67°F)		19°C
(67°F)		14°C
(58°F)		10°C
(50°F)		5°C
(41°F)		1°C
(34°F)
Average low-3°C
(26°F)		-3°C
(27°F)		-1°C
(31°F)		3°C
(37°F)		8°C
(46°F)		13°C
(56°F)		14°C
(58°F)		14°C
(57°F)		10°C
(50°F)		6°C
(43°F)		3°C
(37°F)		-1°C
(31°F)
Mean minimum-14°C
(7°F)		-10°C
(14°F)		-8°C
(18°F)		-3°C
(26°F)		1°C
(33°F)		6°C
(43°F)		10°C
(50°F)		8°C
(46°F)		3°C
(37°F)		0°C
(33°F)		-3°C
(26°F)		-8°C
(19°F)
Minimum-26°C
(-15°F)		-17°C
(1°F)		-16°C
(3°F)		-4°C
(24°F)		-3°C
(28°F)		5°C
(41°F)		8°C
(47°F)		7°C
(45°F)		2°C
(35°F)		-2°C
(29°F)		-6°C
(21°F)		-12°C
(11°F)

Compare climate in Ostroleka with other places

Compare temperature, precipitation, sunshine, UV index in Ostroleka, Poland with other places around the world.

Monthly average precipitation in Ostroleka, Poland

Ostroleka usually has the most precipitation in May, July and August, with an average of 11 rainy days and 83 mm (3.3 inches) of precipitation per month. The driest months in Ostroleka are March, April and November. On average, 38 mm (1.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Ostroleka. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)40 (1.6)43 (1.7)40 (1.6)39 (1.5)87 (3.4)68 (2.7)83 (3.3)79 (3.1)74 (2.9)65 (2.6)36 (1.4)52 (2.0)
Average precipitation days (≥ 1 mm)118109121012101212912

Monthly sunshine hours in Ostroleka, Poland

The sunniest months in Ostroleka are May, June and July, when the sun shines an average of 13 hours 32 minutes a day. Least sunny months in Ostroleka: January, November and December receive an average of 3 hours 50 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Ostroleka. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours91174255335393434418381294223143118
Mean daily daylight hours8h 10m9h 50m11h 54m14h 0m15h 51m16h 50m16h 19m14h 39m12h 37m10h 31m8h 38m7h 37m

Solar UV radiation in Ostroleka, Poland

Ostroleka 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 Ostroleka UV Index data.

Average daily maximum UV levels by month for Ostroleka. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)124567865321