Measurements:
°C
°F
Mostar
98°F
E 3 mph
Feels like: 98°F
Precip: 2%
World Resorts Bosnia Herzegovina Mostar Weather

Mostar Sea Water Temperature

Current Sea Water Temperature:
+77.4°F
Maximum Sea Water Temperature in June: 83.4°F
Minimum Sea Water Temperature in June: 66.6°F
Average water temperature in June: 74.7°F

Sea Water Temperature for the Last 10 Days:

June 21 77.4°F June 16 73.8°F
June 20 76.8°F June 15 73.0°F
June 19 75.4°F June 14 73.4°F
June 18 74.6°F June 13 73.8°F
June 17 74.0°F June 12 74.4°F

When is the Warmest Sea for Mostar?

According to our data for the last three years for Mostar the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Mostar was 79.0°F. The maximum and minimum values were 75.8°F and 82.4°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Mostar was 80.3°F. The maximum and minimum values were 77.4°F and 84.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Mostar was 76.7°F. The maximum and minimum values were 74.8°F and 77.8°F respectively.

Best Time to Visit Mostar
The most sunny months:
July 26 days
August 25 days
June 22 days
The most warm months:
August 91.9 °F
July 91.5 °F
June 84.4 °F
Warmest sea temperature:
August 81.1 °F
July 79.9 °F
September 77.2 °F
The most cold months:
January 42.0 °F
December 45.5 °F
February 46.7 °F
The most rainy months:
November 7 days
March 6 days
December 6 days
The most windy months:
March 6 mph
February 6 mph
January 6 mph

Mostar on the Weather Map

Bosnia Herzegovina Resorts:
NAME
Jahorina +84
Mostar +98
Neum +98
Sarajevo +84
24 Hours Weather Forecast
Mostar
Local time: 13:43
21 jun, sunday
1500 98°F
E
3 mph
1800 90°F
NW
3 mph
2100 68°F
SW
5 mph
22 jun, monday
0000 64°F
SW
6 mph
0300 62°F
SW
7 mph
0600 62°F
SW
6 mph
0900 86°F
S
5 mph
1200 94°F
S
6 mph