Average sea water temperature in September:
+74.8°F
| Minimum sea water temperature in September: | 83.1°F |
| Maximum sea water temperature in September: | 69.1°F |
Daily sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 80.2°F. The highest and lowest sea temperatures during the month were 81.5°F and 77.7°F.
Monthly sea water temperature in Umag, °F
Which Croatia resorts have warmest sea in September?
| Place name | September 2026 | September 2025 |
|---|---|---|
| Plat | 81.4°F | 77.0°F |
| Mlini | 81.4°F | 77.0°F |
| Cavtat | 81.4°F | 77.0°F |
| Dubrovnik | 80.9°F | 76.7°F |
| Lastovo | 80.9°F | 76.8°F |
| Komiza | 80.6°F | 75.7°F |
| Novigrad | 80.3°F | 75.8°F |
| Tucepi | 80.3°F | 74.7°F |
| Makarska | 80.3°F | 74.7°F |
| Umag | 80.2°F | 75.7°F |
| Porec | 80.0°F | 75.8°F |
| Hvar | 80.0°F | 75.6°F |
| Rovinj | 80.0°F | 75.9°F |
| Korcula | 79.9°F | 75.9°F |
| Stari Grad | 79.9°F | 75.5°F |
| Pula | 79.8°F | 75.5°F |
| Vrsar | 79.8°F | 75.8°F |
| Brela | 79.7°F | 74.1°F |
| Baska Voda | 79.7°F | 74.1°F |
| Split | 79.6°F | 74.6°F |
Best time for vacation in Umag
Umag on a weather map
Places in Croatia:
Name
°F
24 Hours Forecast
Umag
Local time: 09:47
September 16, wednesday
1200
72°F
E
4 mph
4 mph
1500
73°F
E
3 mph
3 mph
1800
75°F
NE
3 mph
3 mph
2100
73°F
NW
6 mph
6 mph
September 17, thursday
0000
72°F
NW
10 mph
10 mph
0300
70°F
NW
9 mph
9 mph
0600
68°F
W
12 mph
12 mph
0900
72°F
NW
17 mph
17 mph
