Measurements:
°C
°F
World Resorts Japan

Japan Sea Water Temperature in September

The Japan resorts with the warmest sea water temperature in September are Okinawa, Kyoto and Nagoya.

Below you can see a list of all popular Japan resorts and information about sea water temperature in September for the last two years.

Resort Name September 2024 September 2023 September 2022
Okinawa 89.2°F 88.5°F 87.5°F
Kyoto 87.8°F 85.5°F 83.9°F
Nagoya 87.7°F 87.5°F 85.0°F
Nagasaki 87.6°F 86.2°F 84.2°F
Nara 87.3°F 85.7°F 83.9°F
Osaka 87.2°F 85.8°F 83.9°F
Kobe 86.4°F 85.6°F 84.0°F
Fukuoka 86.2°F 84.5°F 82.1°F
Hiroshima 85.8°F 83.5°F 82.3°F
Tokyo 85.5°F 85.0°F 81.8°F
Yokohama 85.1°F 84.6°F 81.3°F
Atami 84.6°F 84.0°F 82.2°F
Hakone 84.5°F 83.9°F 81.5°F
Kamakura 84.4°F 83.9°F 80.9°F
Sapporo 74.7°F 77.0°F 72.6°F
Noboribetsu 73.9°F 76.0°F 70.9°F

Please see following sea water temperature averages charts for the warmest Japan resorts in September.

You can also get the same information for the every other month of the year when the average sea water temperature is greater then 70°F.