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Monthly climate in Kiseljak, Bosnia and Herzegovina

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Kiseljak features a oceanic climate (Cfb). Temperatures typically range between -1 °C (31 °F) and 21 °C (70 °F) through the year, but rarely can drop to -29 °C (-20 °F) or can rise to as high as 38 °C (100 °F). The average annual precipitation amounts to about 1020 mm (40.2 inches) and receives 148 rainy days on the 1 mm (0.04 inches) threshold annually. Kiseljak enjoys an average of 3670 hours of sunshine throughout the year, and daylight varies from 8 hours 55 minutes to 15 hours 25 minutes per day.

Monthly average temperatures in Kiseljak, Bosnia and Herzegovina

The warmest months in Kiseljak are June, July and August, with daily mean temperatures ranging from 18 to 21 °C (65 - 70 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -1 to 3 °C (31 - 38 °F) throughout the day. On average each year, Kiseljak experiences 54 days above 25 °C (77.0 °F) and 77 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Kiseljak. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum14°C
(57°F)		20°C
(69°F)		22°C
(72°F)		26°C
(79°F)		28°C
(82°F)		34°C
(93°F)		35°C
(95°F)		38°C
(100°F)		32°C
(89°F)		27°C
(80°F)		20°C
(69°F)		14°C
(58°F)
Mean maximum10°C
(50°F)		16°C
(61°F)		20°C
(68°F)		24°C
(75°F)		25°C
(78°F)		30°C
(86°F)		33°C
(91°F)		34°C
(93°F)		30°C
(86°F)		25°C
(77°F)		18°C
(65°F)		12°C
(54°F)
Average high3°C
(38°F)		8°C
(46°F)		10°C
(51°F)		15°C
(60°F)		19°C
(67°F)		24°C
(75°F)		26°C
(78°F)		27°C
(81°F)		22°C
(72°F)		17°C
(64°F)		11°C
(53°F)		6°C
(43°F)
Daily mean-1°C
(31°F)		3°C
(38°F)		5°C
(42°F)		10°C
(49°F)		14°C
(57°F)		18°C
(65°F)		20°C
(68°F)		21°C
(70°F)		16°C
(61°F)		11°C
(52°F)		7°C
(45°F)		2°C
(37°F)
Average low-4°C
(25°F)		-1°C
(31°F)		0°C
(33°F)		4°C
(40°F)		9°C
(48°F)		13°C
(55°F)		14°C
(58°F)		15°C
(60°F)		11°C
(52°F)		6°C
(43°F)		3°C
(38°F)		-1°C
(31°F)
Mean minimum-14°C
(7°F)		-9°C
(16°F)		-8°C
(18°F)		-3°C
(26°F)		4°C
(39°F)		8°C
(47°F)		10°C
(51°F)		10°C
(51°F)		4°C
(40°F)		2°C
(35°F)		-3°C
(27°F)		-8°C
(18°F)
Minimum-29°C
(-20°F)		-12°C
(10°F)		-12°C
(10°F)		-12°C
(10°F)		1°C
(35°F)		6°C
(44°F)		9°C
(48°F)		8°C
(47°F)		2°C
(35°F)		-0°C
(32°F)		-10°C
(14°F)		-12°C
(11°F)

Compare climate in Kiseljak with other places

Compare temperature, precipitation, sunshine, UV index in Kiseljak, Bosnia and Herzegovina with other places around the world.

Monthly average precipitation in Kiseljak, Bosnia and Herzegovina

Kiseljak usually has the most precipitation in March, May and December, with an average of 15 rainy days and 111 mm (4.4 inches) of precipitation per month. The driest months in Kiseljak are January, August and September. On average, 55 mm (2.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Kiseljak. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)74 (2.9)88 (3.5)92 (3.6)89 (3.5)98 (3.9)88 (3.5)88 (3.4)47 (1.9)44 (1.7)83 (3.3)87 (3.4)142 (5.6)
Average precipitation days (≥ 1 mm)121214131714139891116

Monthly sunshine hours in Kiseljak, Bosnia and Herzegovina

The sunniest months in Kiseljak are June, July and August, when the sun shines an average of 13 hours 8 minutes a day. Least sunny months in Kiseljak: January, November and December receive an average of 6 hours 27 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Kiseljak. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours172227301334373393425389336294218203
Mean daily daylight hours9h 17m10h 27m11h 56m13h 28m14h 45m15h 25m15h 4m13h 55m12h 27m10h 57m9h 37m8h 55m

Solar UV radiation in Kiseljak, Bosnia and Herzegovina

Kiseljak experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High category of sun exposure. January, November 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 Kiseljak UV Index data.

Average daily maximum UV levels by month for Kiseljak. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)24679101097532