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Monthly climate in Ostrowiec, Poland

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Ostrowiec features a oceanic climate (Cfb). Temperatures typically range between 1 °C (34 °F) and 18 °C (65 °F) through the year, but rarely can drop to -17 °C (2 °F) or can rise to as high as 34 °C (94 °F). The average annual precipitation amounts to about 800 mm (31.5 inches) and receives 151 rainy days on the 1 mm (0.04 inches) threshold annually. Ostrowiec enjoys an average of 3446 hours of sunshine throughout the year, and daylight varies from 7 hours 24 minutes to 17 hours 5 minutes per day.

Monthly average temperatures in Ostrowiec, Poland

The warmest months in Ostrowiec are June, July and August, with daily mean temperatures ranging from 17 to 18 °C (64 - 65 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 1 to 2 °C (34 - 36 °F) throughout the day. On average each year, Ostrowiec experiences 20 days above 25 °C (77.0 °F) and 70 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Ostrowiec. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum12°C
(54°F)		18°C
(64°F)		17°C
(63°F)		26°C
(79°F)		29°C
(84°F)		33°C
(91°F)		34°C
(94°F)		33°C
(91°F)		31°C
(87°F)		22°C
(72°F)		16°C
(61°F)		10°C
(51°F)
Mean maximum10°C
(50°F)		12°C
(54°F)		15°C
(60°F)		21°C
(70°F)		26°C
(79°F)		27°C
(81°F)		30°C
(85°F)		30°C
(87°F)		28°C
(83°F)		20°C
(68°F)		14°C
(58°F)		9°C
(49°F)
Average high3°C
(37°F)		4°C
(39°F)		7°C
(45°F)		12°C
(53°F)		16°C
(61°F)		22°C
(72°F)		22°C
(71°F)		23°C
(73°F)		18°C
(65°F)		14°C
(57°F)		8°C
(46°F)		4°C
(39°F)
Daily mean1°C
(34°F)		1°C
(34°F)		3°C
(38°F)		7°C
(45°F)		12°C
(54°F)		17°C
(64°F)		18°C
(65°F)		18°C
(65°F)		14°C
(58°F)		10°C
(51°F)		6°C
(43°F)		2°C
(36°F)
Average low-1°C
(30°F)		-1°C
(30°F)		-0°C
(32°F)		3°C
(37°F)		7°C
(45°F)		12°C
(54°F)		14°C
(57°F)		13°C
(57°F)		11°C
(52°F)		7°C
(46°F)		4°C
(39°F)		0°C
(33°F)
Mean minimum-10°C
(15°F)		-9°C
(17°F)		-7°C
(19°F)		-3°C
(26°F)		-0°C
(32°F)		5°C
(42°F)		9°C
(48°F)		7°C
(46°F)		5°C
(41°F)		1°C
(35°F)		-2°C
(29°F)		-5°C
(24°F)
Minimum-16°C
(3°F)		-15°C
(5°F)		-17°C
(2°F)		-6°C
(22°F)		-1°C
(30°F)		3°C
(38°F)		7°C
(45°F)		5°C
(42°F)		4°C
(39°F)		-1°C
(30°F)		-6°C
(22°F)		-10°C
(14°F)

Compare climate in Ostrowiec with other places

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

Monthly average precipitation in Ostrowiec, Poland

Ostrowiec usually has the most precipitation in July, September and October, with an average of 15 rainy days and 96 mm (3.8 inches) of precipitation per month. The driest months in Ostrowiec are February, April and November. On average, 49 mm (1.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Ostrowiec. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)62 (2.4)52 (2.0)59 (2.3)42 (1.6)62 (2.4)56 (2.2)120 (4.7)68 (2.7)82 (3.2)86 (3.4)53 (2.1)60 (2.4)
Average precipitation days (≥ 1 mm)13111381310161214151214

Monthly sunshine hours in Ostrowiec, Poland

The sunniest months in Ostrowiec are May, June and July, when the sun shines an average of 14 hours 9 minutes a day. Least sunny months in Ostrowiec: January, November and December receive an average of 4 hours 7 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Ostrowiec. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours99195266363423439438397302239161118
Mean daily daylight hours7h 58m9h 44m11h 53m14h 6m16h 3m17h 5m16h 32m14h 46m12h 38m10h 27m8h 28m7h 24m

Solar UV radiation in Ostrowiec, Poland

Ostrowiec experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 6 - 7, which corresponds to the 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 Ostrowiec UV Index data.

Average daily maximum UV levels by month for Ostrowiec. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)124567765311