Average sea water temperature in September:
+83.7°F
| Minimum sea water temperature in September: | 86.7°F |
| Maximum sea water temperature in September: | 81.5°F |
Daily sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 82.8°F. The highest and lowest sea temperatures during the month were 83.7°F and 82.0°F.
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| Surabaya |
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Monthly sea water temperature in Surabaya, °F
Which Indonesia resorts have warmest sea in September?
| Place name | September 2026 | September 2025 |
|---|---|---|
| Medan | 87.0°F | 85.6°F |
| Batam | 85.5°F | 84.8°F |
| Padang | 85.4°F | 84.7°F |
| Bintan | 85.4°F | 84.9°F |
| Jakarta | 84.1°F | 84.5°F |
| Bali | 83.0°F | 83.7°F |
| Surabaya | 82.8°F | 84.7°F |
| Trawangan | 81.3°F | 83.7°F |
| Gili | 81.1°F | 83.5°F |
| Sanur | 80.0°F | 81.4°F |
| Denpasar | 80.0°F | 81.4°F |
| Lombok | 79.8°F | 81.5°F |
| Nusa Dua | 79.4°F | 81.0°F |
| Tanjung Benoa | 79.4°F | 81.0°F |
| Kuta | 78.5°F | 80.7°F |
| Legian | 78.5°F | 80.7°F |
| Tuban | 78.5°F | 80.7°F |
| Jimbaran | 78.4°F | 80.7°F |
| Seminyak | 78.4°F | 80.7°F |
| Yogyakarta | 75.9°F | 80.8°F |
Best time for vacation in Surabaya
Surabaya on a weather map
Places in Indonesia:
Name
°F
24 Hours Forecast
Surabaya
Local time: 17:19
September 20, sunday
1800
82°F
W
12 mph
12 mph
2100
81°F
W
11 mph
11 mph
September 21, monday
0000
81°F
NW
8 mph
8 mph
0300
79°F
NW
4 mph
4 mph
0600
79°F
NE
2 mph
2 mph
0900
86°F
NW
6 mph
6 mph
1200
90°F
W
8 mph
8 mph
1500
88°F
W
9 mph
9 mph
