In September warmest sea in Kalimantan is usually observed in the following locations: Sandakan, Buntulu, Kota Kinabalu.
Table below shows the average sea water temperature for marine resorts of Kalimantan in September for the last three years.
| Place name | September 2025 | September 2024 | September 2023 |
|---|---|---|---|
| Sandakan | 85.7°F | 86.4°F | 86.9°F |
| Buntulu | 85.4°F | 86.2°F | 86.0°F |
| Kota Kinabalu | 85.3°F | 86.0°F | 86.4°F |
| Bandar Seri Begawan | 85.3°F | 86.2°F | 86.2°F |
| Kuala Belait | 85.2°F | 86.1°F | 86.0°F |
| Seria | 85.2°F | 86.2°F | 86.1°F |
| Kuching | 85.0°F | 85.9°F | 86.6°F |
Charts below show average sea water temperature for Kalimantan resorts with the warmest sea in September.
You can also check other months of the year to see sea temperature of Kalimantan resorts at that time.
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