# Manuel Antonio water temperature La temperatura del mar en Manuel Antonio es 30.3 °C (86.5 °F). - Location: Manuel Antonio, Costa Rica - Timezone: America/Costa_Rica - Source: Open-Meteo marine forecast (snapshot) - Generated at: 2026-09-26T22:10:54.685363-06:00 - Forecast page: https://snorkelforecast.com/es/costa-rica/manuel-antonio/ - HTML sea temperature: https://snorkelforecast.com/es/costa-rica/manuel-antonio/temperatura-del-mar/ - Temperature is not a safety rating or snorkel score. - Guidance: Agua muy cálida - What to wear: El bañador suele ser suficiente; una licra ayuda a protegerse del sol. ## Monthly baseline - January: 29.5 °C (85.1 °F) - February: 30.3 °C (86.5 °F) - March: 30.5 °C (86.9 °F) - April: 30.7 °C (87.3 °F) - May: 30.4 °C (86.7 °F) - June: 29.5 °C (85.1 °F) - July: 29.4 °C (84.9 °F) - August: 29.3 °C (84.7 °F) - September: 29.4 °C (84.9 °F) - October: 28.8 °C (83.8 °F) - November: 28.2 °C (82.8 °F) - December: 29.1 °C (84.4 °F)