The Japan resorts with the warmest sea water temperature in January are Okinawa, Kamakura and Atami.
Below you can see a list of all popular Japan resorts and information about sea water temperature in January for the last two years.
| Resort Name | January 2024 | January 2023 | January 2022 |
|---|---|---|---|
| Okinawa | 75.3°F | 74.3°F | 74.0°F |
| Kamakura | 63.4°F | 61.7°F | 59.3°F |
| Atami | 63.4°F | 62.0°F | 60.4°F |
| Hakone | 63.3°F | 61.9°F | 60.0°F |
| Nagasaki | 61.7°F | 63.0°F | 61.5°F |
| Fukuoka | 58.7°F | 57.3°F | 57.8°F |
| Hiroshima | 57.8°F | 56.6°F | 56.5°F |
| Nagoya | 56.4°F | 55.7°F | 53.8°F |
| Yokohama | 55.9°F | 56.1°F | 53.4°F |
| Tokyo | 54.4°F | 53.4°F | 51.5°F |
| Kobe | 54.2°F | 53.0°F | 52.9°F |
| Osaka | 54.1°F | 51.8°F | 52.1°F |
| Nara | 53.9°F | 51.9°F | 52.8°F |
| Kyoto | 53.3°F | 51.9°F | 54.5°F |
| Sapporo | 42.6°F | 28.1°F | 28.4°F |
| Noboribetsu | 41.4°F | 41.3°F | 39.3°F |
Please see following sea water temperature averages charts for the warmest Japan resorts in January.
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.
