Climate averages 1991–2020

Weather in Bosnia and Herzegovina.

ClimaNote covers 7 cities in Bosnia and Herzegovina, starting with Sarajevo, Banja Luka and Zenica. Open a city for charts and a table of all 12 months, or open a month for a side-by-side comparison of cities in the atlas.

Across these cities the yearly average high ranges from 15.3°C in Sarajevo (tied with Ilidža) to 18.5°C in Mostar, and yearly rainfall from 1,013 mm in Banja Luka to 1,561 mm in Mostar. The hottest city-month is August in Mostar, with an average high of 30.2°C, and the coolest is January in Sarajevo, at 4.5°C. By single month, the most rain falls in November in Mostar, with 222 mm, and the least in July in Mostar, with 45 mm.

August is the warmest month in every city; January is the coolest in every city. May is the wettest month in 2 cities, November in 2 and June in 1 (in 2 other cities two or more months tie); January is the driest in 2 cities, July in 2 and August in 2 (in 1 other city two or more months tie). None of these cities has a month with an average high below 2.0°C, a month with under 1 mm of rain or a month with more than 300 mm of rain.