In October warmest sea in Sumatra is usually observed in the following locations: Pangkor, Batu Feringgi, Penang.
Table below shows the average sea water temperature for marine resorts of Sumatra in October for the last three years.
| Place name | October 2025 | October 2024 | October 2023 |
|---|---|---|---|
| Pangkor | 85.8°F | 86.0°F | 86.5°F |
| Batu Feringgi | 85.8°F | 86.4°F | 86.2°F |
| Penang | 85.8°F | 86.4°F | 86.2°F |
| George Town | 85.7°F | 86.1°F | 86.2°F |
| Kuala Lumpur | 85.6°F | 86.2°F | 86.2°F |
| Malacca | 85.5°F | 86.0°F | 86.4°F |
| Redang | 85.5°F | 85.9°F | 86.5°F |
| Kuala Terengganu | 85.5°F | 85.8°F | 86.4°F |
| Perhentian Islands | 85.5°F | 86.2°F | 86.5°F |
| Bintan | 85.4°F | 85.6°F | 86.0°F |
| Tioman | 85.3°F | 85.6°F | 85.7°F |
| Sentosa | 85.2°F | 85.8°F | 86.0°F |
| Singapore | 85.2°F | 85.6°F | 86.2°F |
| Batam | 85.0°F | 85.6°F | 85.8°F |
| Medan | 85.0°F | 85.3°F | 85.1°F |
| Johor Bahrul | 84.9°F | 85.3°F | 85.9°F |
Charts below show average sea water temperature for Sumatra resorts with the warmest sea in October.
You can also check other months of the year to see sea temperature of Sumatra resorts at that time.
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