Average sea water temperature in September:
+74.5°F
| Minimum sea water temperature in September: | 79.9°F |
| Maximum sea water temperature in September: | 69.6°F |
Daily sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 74.1°F. The highest and lowest sea temperatures during the month were 75.0°F and 72.3°F.
Monthly sea water temperature in Mostar, °F
Which Bosnia Herzegovina resorts have warmest sea in September?
Best time for vacation in Mostar
Mostar on a weather map
24 Hours Forecast
Mostar
Local time: 21:58
May 02, saturday
0000

36°F
SW
7 mph
7 mph
0300

34°F
SW
7 mph
7 mph
0600

34°F
SW
7 mph
7 mph
0900

55°F
S
8 mph
8 mph
1200

61°F
S
9 mph
9 mph
1500

63°F
SW
9 mph
9 mph
1800

61°F
SW
7 mph
7 mph
2100

41°F
SW
7 mph
7 mph



























