With a population of around 8,500, Kiseljak sits in Federation of B&H, Bosnia and Herzegovina. The city operates in the Europe/Sarajevo time zone.
In 2025, Kiseljak recorded an average annual temperature of 53°F. The hottest temperatures reached 97°F in July; the coolest were 11°F in January. Total precipitation for the year was 28 inches, with the wettest month being March. Snowfall for the year totaled approximately 6 inches.
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