# Fernando de Noronha water temperature Sea temperature at Fernando de Noronha is 26.8 °C (80.2 °F). - Location: Fernando de Noronha, Brazil - Timezone: America/Noronha - Source: Open-Meteo marine forecast (snapshot) - Generated at: 2026-09-22T09:19:50.898202-02:00 - Forecast page: https://snorkelforecast.com/brazil/fernando-de-noronha/ - HTML sea temperature: https://snorkelforecast.com/brazil/fernando-de-noronha/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: 28.1 °C (82.6 °F) - February: 28.6 °C (83.5 °F) - March: 29.1 °C (84.4 °F) - April: 29.5 °C (85.1 °F) - May: 28.9 °C (84.0 °F) - June: 28.2 °C (82.8 °F) - July: 27.4 °C (81.3 °F) - August: 27.0 °C (80.6 °F) - September: 26.8 °C (80.2 °F) - October: 27.1 °C (80.8 °F) - November: 27.4 °C (81.3 °F) - December: 27.6 °C (81.7 °F)