Climate
The climate of Bosnia and Herzegovina is continental, with hot summers and cold, snowy winters. This resembles the continental European climate rather than the Mediterranean climate of neighboring countries such as Italy or Greece. The only part of the nation with a Mediterranean climate is the southwest. Bosnia and Herzegovina shares a mild maritime environment with the Adriatic Sea.
Although summers in Bosnia and Herzegovina are known to be scorching, we had to contend with a -not so hot- temperature of 10 degrees Celsius when we visited Sarajevo in mid-August. Even in the summer, bring a few extra layers of clothing just in case.
The country's coastline is just around 7 kilometers (4 miles) long; the remainder of the time, the boundary is only a few kilometers from the sea, and the shoreline belongs to Croatia. In all seasons except summer, the maritime area has a Mediterranean climate, which is pleasant yet wet.
The Adriatic Sea in Neum is hottest in July and August, when the water temperature is 24/25 °C (75/77 °F), but still pleasant in September, when the water temperature is 23 °C (73 °F), and cold in June, when the water temperature is 21 °C (70 °F).