# Mnemba Atoll water temperature Sea temperature at Mnemba Atoll is 26.8 °C (80.2 °F). - Location: Mnemba Atoll, Tanzania - Timezone: Africa/Dar_es_Salaam - Source: Open-Meteo marine forecast (snapshot) - Generated at: 2026-09-24T16:56:23.069614+03:00 - Forecast page: https://snorkelforecast.com/tanzania/mnemba-atoll/ - HTML sea temperature: https://snorkelforecast.com/tanzania/mnemba-atoll/sea-temperature/ - Temperature is not a safety rating or snorkel score. - Guidance: Warm water - What to wear: Most people are comfortable in swimwear or a light rash guard. ## Monthly baseline - January: 28.8 °C (83.8 °F) - February: 29.2 °C (84.6 °F) - March: 29.6 °C (85.3 °F) - April: 29.3 °C (84.7 °F) - May: 28.6 °C (83.5 °F) - June: 27.7 °C (81.9 °F) - July: 26.5 °C (79.7 °F) - August: 26.0 °C (78.8 °F) - September: 26.3 °C (79.3 °F) - October: 27.0 °C (80.6 °F) - November: 28.3 °C (82.9 °F) - December: 29.1 °C (84.4 °F)