Measurements:
°C
°F
Mostar
56°F
SW 6 mph
Feels like: 56°F
Precip: 4%
World Resorts Bosnia Herzegovina Mostar Weather

Mostar Sea Water Temperature

Current Sea Water Temperature:
+72.0°F
Maximum Sea Water Temperature in September: 84.6°F
Minimum Sea Water Temperature in September: 71.8°F
Average water temperature in September: 77.3°F

Sea Water Temperature for the Last 10 Days:

September 28 72.0°F September 23 75.8°F
September 27 72.8°F September 22 76.0°F
September 26 73.4°F September 21 77.2°F
September 25 74.8°F September 20 76.0°F
September 24 74.4°F September 19 78.4°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Mostar was 83.5°F. The maximum and minimum values were 81.0°F and 85.8°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Mostar was 80.7°F. The maximum and minimum values were 77.2°F and 84.2°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Mostar was 79.3°F. The maximum and minimum values were 72.0°F and 84.6°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 92.4 °F
July 91.5 °F
June 84.6 °F
Warmest sea temperature:
August 81.2 °F
July 79.9 °F
September 77.3 °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
F°
Jahorina +50
Mostar +56
Neum +58
Sarajevo +50
24 Hours Weather Forecast
Mostar
Local time: 02:01
29 sep, tuesday
0300 56°F
SW
6 mph
0600 56°F
SW
6 mph
0900 66°F
SW
4 mph
1200 80°F
NW
1 mph
1500 82°F
NW
2 mph
1800 72°F
NE
3 mph
2100 62°F
SW
4 mph
30 sep, wednesday
0000 60°F
SW
6 mph