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: 08:53
July 23, thursday
0900

73°F
SW
5 mph
5 mph
1200

84°F
SE
2 mph
2 mph
1500

88°F
E
2 mph
2 mph
1800

81°F
NE
3 mph
3 mph
2100

61°F
SW
4 mph
4 mph
July 24, friday
0000

55°F
SW
5 mph
5 mph
0300

57°F
S
10 mph
10 mph
0600

54°F
SW
10 mph
10 mph

























