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Monthly climate in Boleslawiec, Poland

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Boleslawiec features a oceanic climate (Cfb). Temperatures typically range between 1 °C (34 °F) and 20 °C (68 °F) through the year, but rarely can drop to -17 °C (2 °F) or can rise to as high as 35 °C (96 °F). The average annual precipitation amounts to about 747 mm (29.4 inches) and receives 140 rainy days on the 1 mm (0.04 inches) threshold annually. Boleslawiec enjoys an average of 3413 hours of sunshine throughout the year, and daylight varies from 7 hours 56 minutes to 16 hours 29 minutes per day.

Monthly average temperatures in Boleslawiec, Poland

The warmest months in Boleslawiec are June, July and August, with daily mean temperatures ranging from 19 to 20 °C (67 - 68 °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 - 37 °F) throughout the day. On average each year, Boleslawiec experiences 40 days above 25 °C (77.0 °F) and 67 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Boleslawiec. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum13°C
(56°F)		18°C
(65°F)		21°C
(70°F)		26°C
(79°F)		30°C
(87°F)		35°C
(96°F)		35°C
(95°F)		34°C
(94°F)		30°C
(87°F)		24°C
(75°F)		18°C
(65°F)		12°C
(55°F)
Mean maximum10°C
(50°F)		13°C
(56°F)		19°C
(66°F)		23°C
(74°F)		27°C
(80°F)		30°C
(86°F)		32°C
(90°F)		32°C
(89°F)		29°C
(84°F)		23°C
(74°F)		16°C
(61°F)		11°C
(52°F)
Average high3°C
(38°F)		5°C
(41°F)		9°C
(48°F)		14°C
(57°F)		18°C
(65°F)		24°C
(75°F)		24°C
(76°F)		25°C
(77°F)		20°C
(68°F)		15°C
(59°F)		8°C
(47°F)		4°C
(40°F)
Daily mean1°C
(34°F)		2°C
(36°F)		5°C
(40°F)		9°C
(49°F)		13°C
(56°F)		19°C
(67°F)		19°C
(67°F)		20°C
(68°F)		15°C
(59°F)		11°C
(52°F)		6°C
(43°F)		2°C
(37°F)
Average low-1°C
(30°F)		-1°C
(30°F)		1°C
(33°F)		4°C
(40°F)		8°C
(47°F)		13°C
(56°F)		14°C
(58°F)		14°C
(58°F)		11°C
(51°F)		7°C
(45°F)		3°C
(38°F)		0°C
(33°F)
Mean minimum-9°C
(16°F)		-10°C
(15°F)		-6°C
(22°F)		-2°C
(28°F)		2°C
(36°F)		6°C
(44°F)		9°C
(48°F)		8°C
(47°F)		4°C
(40°F)		0°C
(33°F)		-4°C
(26°F)		-6°C
(21°F)
Minimum-14°C
(8°F)		-17°C
(2°F)		-13°C
(9°F)		-6°C
(22°F)		-1°C
(31°F)		3°C
(38°F)		7°C
(45°F)		6°C
(44°F)		2°C
(35°F)		-2°C
(28°F)		-6°C
(22°F)		-13°C
(10°F)

Compare climate in Boleslawiec with other places

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

Monthly average precipitation in Boleslawiec, Poland

Boleslawiec usually has the most precipitation in May, August and October, with an average of 12 rainy days and 75 mm (3.0 inches) of precipitation per month. The driest months in Boleslawiec are March, April and November. On average, 46 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Boleslawiec. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)57 (2.2)55 (2.2)55 (2.2)42 (1.6)75 (3.0)63 (2.5)72 (2.8)75 (3.0)72 (2.8)76 (3.0)40 (1.6)65 (2.6)
Average precipitation days (≥ 1 mm)13101210131113101113915

Monthly sunshine hours in Boleslawiec, Poland

The sunniest months in Boleslawiec are May, June and July, when the sun shines an average of 13 hours 13 minutes a day. Least sunny months in Boleslawiec: January, November and December receive an average of 4 hours 48 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Boleslawiec. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours116198274333384409422381311254183141
Mean daily daylight hours8h 26m9h 59m11h 54m13h 52m15h 35m16h 29m16h 0m14h 28m12h 34m10h 37m8h 52m7h 56m

Solar UV radiation in Boleslawiec, Poland

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

Average daily maximum UV levels by month for Boleslawiec. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)124678876321