Best time to swim in Japan Sea temperature by month
Do you want to go to the seaside in Japan? But when should you go to be sure to enjoy good sea water temperature and be able to swim for a long time? Now or another month during the year? On this page, find the sea temperature by month in Japan.
Swimming in Japan by month
Discover swimming conditions in detail in Japan by month below. Click on the links for each month to see details about the sea temperature in the cities of: Tokyo, Fukuoka, Hiroshima, Kochi and Nagoya.
| Month | Average Sea temperature | Our opinion |
|---|---|---|
| January | 32°F to 76°F | pleasant swimming* |
| February | 30°F to 75°F | pleasant swimming* |
| March | 30°F to 75°F | pleasant swimming* |
| April | 35°F to 79°F | pleasant swimming* |
| May | 41°F to 82°F | ideal swimming* |
| June | 50°F to 83°F | ideal swimming* |
| July | 58°F to 84°F | ideal swimming* |
| August | 63°F to 85°F | ideal swimming* |
| September | 63°F to 84°F | ideal swimming* |
| October | 56°F to 83°F | ideal swimming* |
| November | 45°F to 81°F | ideal swimming* |
| December | 38°F to 77°F | pleasant swimming* |
* in at least part of the area.
Where and when should you swim in Japan?
Best time to swim in Tokyo
The best months for swimming in Tokyo are july, august, september et october.
Best time to swim in Fukuoka
The best months for swimming in Fukuoka are june, july, august, september, october et november.
Best time to swim in Hiroshima
The best months for swimming in Hiroshima are june, july, august, september et october.
Best time to swim in Kochi
The best months for swimming in Kochi are june, july, august, september, october et november.
Best time to swim in Nagoya
The best months for swimming in Nagoya are june, july, august, september et october.
Other cities and places in Japan:
Water temperatures in Japan over the entire year
On this chart, we show you the variation of the average sea water temperature in Japan for the cities of: Tokyo, Fukuoka, Hiroshima, Kochi and Nagoya.