# Kerama Islands water temperature

Sea temperature at Kerama Islands is 29.0 °C (84.2 °F).

- Location: Kerama Islands, Japan
- Timezone: Asia/Tokyo
- Source: Open-Meteo marine forecast (snapshot)
- Generated at: 2026-09-22T23:18:45.427069+09:00
- Forecast page: https://snorkelforecast.com/japan/kerama-islands/
- HTML sea temperature: https://snorkelforecast.com/japan/kerama-islands/sea-temperature/
- Temperature is not a safety rating or snorkel score.
- Guidance: Very warm water
- What to wear: Swimwear is usually enough; a rash guard adds sun protection.

## Monthly baseline

- January: 22.3 °C (72.1 °F)
- February: 21.9 °C (71.4 °F)
- March: 21.8 °C (71.2 °F)
- April: 22.9 °C (73.2 °F)
- May: 24.4 °C (75.9 °F)
- June: 27.1 °C (80.8 °F)
- July: 29.3 °C (84.7 °F)
- August: 29.5 °C (85.1 °F)
- September: 29.8 °C (85.6 °F)
- October: 28.6 °C (83.5 °F)
- November: 26.5 °C (79.7 °F)
- December: 24.2 °C (75.6 °F)