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, Kobe and Kochi.
| Month | Averagesea temperature | Our opinion | Details |
|---|---|---|---|
| January | 32°F to 76°F | pleasant swimming* | Sea temperature in Japan in january |
| February | 30°F to 75°F | pleasant swimming* | Sea temperature in Japan in february |
| March | 30°F to 75°F | pleasant swimming* | Sea temperature in Japan in march |
| April | 35°F to 79°F | pleasant swimming* | Sea temperature in Japan in april |
| May | 41°F to 82°F | ideal swimming* | Sea temperature in Japan in may |
| June | 50°F to 83°F | ideal swimming* | Sea temperature in Japan in june |
| July | 58°F to 84°F | ideal swimming* | Sea temperature in Japan in july |
| August | 63°F to 85°F | ideal swimming* | Sea temperature in Japan in august |
| September | 63°F to 84°F | ideal swimming* | Sea temperature in Japan in september |
| October | 56°F to 83°F | ideal swimming* | Sea temperature in Japan in october |
| November | 45°F to 81°F | ideal swimming* | Sea temperature in Japan in november |
| December | 38°F to 77°F | pleasant swimming* | Sea temperature in Japan in december |
* in at least part of the area.
Where and when should you swim in Japan?
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, Kobe and Kochi.