The Brunei resorts with the warmest sea water temperature in September are Bandar Seri Begawan, Kuala Belait and Seria.
Below you can see a list of all popular Brunei resorts and information about sea water temperature in September for the last two years.
| Resort Name | September 2025 | September 2024 | September 2023 |
|---|---|---|---|
| Bandar Seri Begawan | 89.2°F | 90.2°F | 90.2°F |
| Kuala Belait | 89.1°F | 90.1°F | 90.1°F |
| Seria | 89.1°F | 90.2°F | 90.1°F |
Please see following sea water temperature averages charts for the warmest Brunei resorts in September.
You can also get the same information for the every other month of the year when the average sea water temperature is greater then 70°F.
Sea Water
Temperature
Temperature
| Bandar Seri Begawan |
Sea Water
Temperature
Temperature
| Kuala Belait |
Sea Water
Temperature
Temperature
| Seria |
