In September warmest sea in Tanzania is usually observed in the following locations: Tanga, Zanzibar, Mafia Island.
Table below shows the average sea water temperature for marine resorts of Tanzania in September for the last three years.
| Place name | September 2025 | September 2024 | September 2023 |
|---|---|---|---|
| Tanga | 79.9°F | 80.5°F | 80.3°F |
| Zanzibar | 79.5°F | 80.1°F | 79.9°F |
| Mafia Island | 79.3°F | 80.1°F | 80.1°F |
| Tanganyika | 79.3°F | 79.8°F | 80.0°F |
| Dar es Salaam | 79.2°F | 79.5°F | 79.7°F |
| Nungwi | 78.9°F | 79.6°F | 79.4°F |
| Pemba | 78.8°F | 79.4°F | 79.3°F |
| Lake Manyara | 70.3°F | 71.3°F | 72.5°F |
| Ngorongoro | 70.2°F | 71.1°F | 72.4°F |
Charts below show average sea water temperature for Tanzania resorts with the warmest sea in September.
You can also check other months of the year to see sea temperature of Tanzania resorts at that time.
Places in Tanzania:
Name
°F
