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Monthly climate in Slupsk, Poland

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Slupsk features a oceanic climate (Cfb). Temperatures typically range between 2 °C (35 °F) and 19 °C (66 °F) through the year, but rarely can drop to -14 °C (6 °F) or can rise to as high as 30 °C (87 °F). The average annual precipitation amounts to about 845 mm (33.3 inches) and receives 159 rainy days on the 1 mm (0.04 inches) threshold annually. Slupsk enjoys an average of 3446 hours of sunshine throughout the year, and daylight varies from 7 hours 22 minutes to 17 hours 7 minutes per day.

Monthly average temperatures in Slupsk, Poland

The warmest months in Slupsk are June, July and August, with daily mean temperatures ranging from 17 to 19 °C (63 - 66 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 2 to 3 °C (35 - 37 °F) throughout the day. On average each year, Slupsk experiences 10 days above 25 °C (77.0 °F) and 44 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Slupsk. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum11°C
(52°F)		13°C
(56°F)		13°C
(56°F)		21°C
(69°F)		24°C
(76°F)		30°C
(86°F)		30°C
(86°F)		30°C
(87°F)		28°C
(83°F)		21°C
(69°F)		16°C
(61°F)		10°C
(50°F)
Mean maximum9°C
(49°F)		10°C
(51°F)		12°C
(54°F)		17°C
(63°F)		23°C
(73°F)		24°C
(76°F)		27°C
(81°F)		28°C
(82°F)		26°C
(79°F)		19°C
(66°F)		14°C
(57°F)		9°C
(48°F)
Average high3°C
(38°F)		3°C
(39°F)		6°C
(43°F)		10°C
(50°F)		14°C
(58°F)		20°C
(68°F)		21°C
(69°F)		21°C
(71°F)		18°C
(64°F)		13°C
(56°F)		8°C
(47°F)		4°C
(40°F)
Daily mean2°C
(35°F)		2°C
(35°F)		3°C
(38°F)		7°C
(44°F)		11°C
(52°F)		17°C
(63°F)		18°C
(65°F)		19°C
(66°F)		15°C
(60°F)		11°C
(52°F)		7°C
(44°F)		3°C
(37°F)
Average low0°C
(33°F)		-0°C
(32°F)		1°C
(34°F)		4°C
(39°F)		8°C
(46°F)		13°C
(56°F)		15°C
(60°F)		15°C
(60°F)		13°C
(55°F)		9°C
(49°F)		5°C
(42°F)		1°C
(35°F)
Mean minimum-7°C
(19°F)		-7°C
(20°F)		-5°C
(24°F)		-1°C
(30°F)		2°C
(36°F)		8°C
(46°F)		12°C
(53°F)		11°C
(53°F)		8°C
(47°F)		4°C
(40°F)		0°C
(33°F)		-3°C
(27°F)
Minimum-13°C
(10°F)		-12°C
(10°F)		-14°C
(6°F)		-3°C
(26°F)		1°C
(34°F)		6°C
(44°F)		10°C
(50°F)		10°C
(50°F)		7°C
(45°F)		3°C
(38°F)		-3°C
(28°F)		-7°C
(19°F)

Compare climate in Slupsk with other places

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

Monthly average precipitation in Slupsk, Poland

Slupsk usually has the most precipitation in July, September and October, with an average of 16 rainy days and 104 mm (4.1 inches) of precipitation per month. The driest months in Slupsk are April, May and June. On average, 46 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Slupsk. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)66 (2.6)56 (2.2)59 (2.3)36 (1.4)55 (2.2)47 (1.8)106 (4.2)70 (2.8)91 (3.6)114 (4.5)76 (3.0)70 (2.8)
Average precipitation days (≥ 1 mm)1412138128151316181515

Monthly sunshine hours in Slupsk, Poland

The sunniest months in Slupsk are May, June and July, when the sun shines an average of 14 hours 9 minutes a day. Least sunny months in Slupsk: 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 Slupsk. 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 56m9h 43m11h 53m14h 6m16h 4m17h 7m16h 34m14h 47m12h 38m10h 27m8h 27m7h 22m

Solar UV radiation in Slupsk, Poland

Slupsk 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 Slupsk UV Index data.

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