Gacko is a city of approximately 3,400 people in Srpska, Bosnia and Herzegovina. Located in the Europe/Sarajevo time zone at 43.2°N latitude.
In 2025, Gacko recorded an average annual temperature of 50°F. The hottest temperatures reached 92°F in July; the coolest were 6°F in February. Total precipitation for the year was 51 inches, with the wettest month being March. Snowfall for the year totaled approximately 10 inches.
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