Measurements:
°C
°F
World Resorts Japan

Japan Sea Water Temperature in October

The Japan resorts with the warmest sea water temperature in October are Okinawa, Nagasaki and Atami.

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

Resort Name October 2024 October 2023 October 2022
Okinawa 86.6°F 85.6°F 85.1°F
Nagasaki 81.6°F 80.3°F 78.3°F
Atami 79.4°F 77.2°F 77.3°F
Hiroshima 79.3°F 77.2°F 76.9°F
Nagoya 78.9°F 76.1°F 76.9°F
Kobe 78.7°F 77.3°F 76.3°F
Hakone 78.6°F 76.9°F 76.9°F
Osaka 78.4°F 76.5°F 76.5°F
Nara 77.7°F 75.9°F 75.5°F
Fukuoka 77.7°F 76.5°F 74.6°F
Kamakura 77.5°F 76.2°F 76.1°F
Kyoto 76.2°F 73.7°F 72.5°F
Tokyo 75.7°F 74.1°F 73.5°F
Yokohama 75.6°F 75.2°F 73.6°F
Noboribetsu 66.2°F 64.5°F 64.1°F
Sapporo 65.9°F 66.9°F 64.8°F

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

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.