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Monthly climate in Osijek, Croatia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Osijek features a oceanic climate (Cfb). Temperatures typically range between 1 °C (34 °F) and 24 °C (75 °F) through the year, but rarely can drop to -18 °C (0 °F) or can rise to as high as 38 °C (102 °F). The average annual precipitation amounts to about 671 mm (26.4 inches) and receives 107 rainy days on the 1 mm (0.04 inches) threshold annually. Osijek enjoys an average of 3679 hours of sunshine throughout the year, and daylight varies from 8 hours 44 minutes to 15 hours 37 minutes per day.

Monthly average temperatures in Osijek, Croatia

The warmest months in Osijek are June, July and August, with daily mean temperatures ranging from 22 to 24 °C (72 - 75 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 1 to 5 °C (34 - 40 °F) throughout the day. On average each year, Osijek experiences 89 days above 25 °C (77.0 °F) and 55 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Osijek. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum16°C
(61°F)		20°C
(69°F)		25°C
(77°F)		31°C
(88°F)		32°C
(89°F)		38°C
(102°F)		38°C
(101°F)		38°C
(101°F)		34°C
(93°F)		30°C
(86°F)		23°C
(74°F)		18°C
(64°F)
Mean maximum13°C
(56°F)		18°C
(64°F)		22°C
(73°F)		27°C
(80°F)		29°C
(84°F)		33°C
(92°F)		35°C
(96°F)		36°C
(98°F)		32°C
(90°F)		27°C
(81°F)		21°C
(70°F)		15°C
(59°F)
Average high4°C
(40°F)		9°C
(49°F)		13°C
(55°F)		18°C
(65°F)		22°C
(73°F)		28°C
(82°F)		29°C
(85°F)		30°C
(87°F)		25°C
(77°F)		19°C
(67°F)		12°C
(54°F)		7°C
(44°F)
Daily mean1°C
(34°F)		5°C
(40°F)		7°C
(45°F)		12°C
(55°F)		17°C
(63°F)		22°C
(72°F)		24°C
(75°F)		24°C
(75°F)		18°C
(65°F)		13°C
(56°F)		8°C
(47°F)		4°C
(39°F)
Average low-2°C
(28°F)		0°C
(33°F)		2°C
(36°F)		7°C
(44°F)		12°C
(54°F)		17°C
(62°F)		18°C
(64°F)		18°C
(65°F)		13°C
(56°F)		8°C
(47°F)		5°C
(41°F)		1°C
(34°F)
Mean minimum-8°C
(17°F)		-8°C
(18°F)		-6°C
(22°F)		1°C
(33°F)		6°C
(43°F)		11°C
(51°F)		12°C
(54°F)		12°C
(55°F)		7°C
(44°F)		3°C
(38°F)		-2°C
(30°F)		-5°C
(23°F)
Minimum-17°C
(2°F)		-12°C
(10°F)		-18°C
(0°F)		-3°C
(27°F)		3°C
(38°F)		7°C
(46°F)		11°C
(52°F)		10°C
(51°F)		4°C
(39°F)		0°C
(32°F)		-4°C
(25°F)		-10°C
(15°F)

Compare climate in Osijek with other places

Compare temperature, precipitation, sunshine, UV index in Osijek, Croatia with other places around the world.

Monthly average precipitation in Osijek, Croatia

Osijek usually has the most precipitation in May, June and July, with an average of 10 rainy days and 70 mm (2.8 inches) of precipitation per month. The driest months in Osijek are January, September and November. On average, 43 mm (1.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Osijek. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)40 (1.6)55 (2.2)54 (2.1)51 (2.0)77 (3.0)66 (2.6)68 (2.7)54 (2.1)39 (1.5)54 (2.1)50 (2.0)63 (2.5)
Average precipitation days (≥ 1 mm)8910912108768911

Monthly sunshine hours in Osijek, Croatia

The sunniest months in Osijek are June, July and August, when the sun shines an average of 13 hours 20 minutes a day. Least sunny months in Osijek: January, November and December receive an average of 6 hours 16 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Osijek. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours169225306338383403428395336284210197
Mean daily daylight hours9h 8m10h 22m11h 56m13h 32m14h 55m15h 37m15h 14m14h 1m12h 29m10h 53m9h 28m8h 44m

Solar UV radiation in Osijek, Croatia

Osijek experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 8 - 9, which corresponds to the Very High category of sun exposure. January, February and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Osijek UV Index data.

Average daily maximum UV levels by month for Osijek. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235689987532