The Tanzania resorts with the warmest sea water temperature in September are Tanga, Zanzibar and Mafia Island.
Below you can see a list of all popular Tanzania resorts and information about sea water temperature in September for the last two years.
| Resort Name | September 2025 | September 2024 | September 2023 |
|---|---|---|---|
| Tanga | 83.2°F | 83.9°F | 83.6°F |
| Zanzibar | 82.8°F | 83.5°F | 83.2°F |
| Mafia Island | 82.6°F | 83.5°F | 83.5°F |
| Tanganyika | 82.5°F | 83.1°F | 83.3°F |
| Dar es Salaam | 82.5°F | 82.7°F | 82.9°F |
| Nungwi | 82.1°F | 82.9°F | 82.7°F |
| Pemba | 82.0°F | 82.6°F | 82.6°F |
| Lake Manyara | 72.6°F | 73.6°F | 75.0°F |
| Ngorongoro | 72.4°F | 73.4°F | 74.8°F |
Please see following sea water temperature averages charts for the warmest Tanzania 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.
Tanzania Resorts:
NAME
F°
| Arusha |  |
+84 |
| Dar es Salaam |  |
+92 |
| Kilimanjaro |  |
+90 |
| Lake Manyara |  |
+88 |
| Mafia Island | |
+92 |
| Ngorongoro | |
+78 |
| Nungwi | |
+92 |
| Pemba | |
+90 |
| Ruaha | |
+102 |
| Selous | |
+100 |
| Serengeti | |
+94 |
| Tanga | |
+92 |
| Tanganyika | |
+74 |
| Tarangire | |
+88 |
| Zanzibar | |
+92 |
