In December warmest sea in Tanzania is usually observed in the following locations: Mafia Island, Dar es Salaam, Zanzibar.
Table below shows the average sea water temperature for marine resorts of Tanzania in December for the last three years.
| Place name | December 2025 | December 2024 | December 2023 |
|---|---|---|---|
| Mafia Island | 84.4°F | 84.7°F | 85.1°F |
| Dar es Salaam | 84.3°F | 84.0°F | 84.7°F |
| Zanzibar | 84.2°F | 84.4°F | 84.9°F |
| Tanga | 83.8°F | 83.8°F | 84.3°F |
| Nungwi | 83.3°F | 83.9°F | 84.4°F |
| Pemba | 83.1°F | 83.5°F | 84.3°F |
| Tanganyika | 80.5°F | 80.6°F | 80.9°F |
| Ngorongoro | 74.7°F | 78.8°F | 79.1°F |
| Lake Manyara | 74.7°F | 78.8°F | 79.1°F |
Charts below show average sea water temperature for Tanzania resorts with the warmest sea in December.
You can also check other months of the year to see sea temperature of Tanzania resorts at that time.
Places in Tanzania:
Name
°F
