Best time to swim in Joetsu in Japan Sea temperature by month
Do you want to swim in the sea in Joetsu in Japan? But when is the best time to go to be sure to have pleasant water for swimming in Joetsu and be able to swim without catching cold? This month, or a different one? The answer is on this page, with the sea water temperature by month in Joetsu, based on the average temperatures recorded in previous years.
Best time to swim in Joetsu: the water temperature by month
Do you feel like swimming in Joetsu in Japan? Discover the average sea temperature for each month of the year (based on previous years' records) and our opinion on swimming in the table below.
| Month | Average Sea temperature | Our opinion |
|---|---|---|
| January | 55°F (min: 51°F/max: 58°F) | freezing swimming |
| February | 51°F (min: 48°F/max: 54°F) | freezing swimming |
| March | 51°F (min: 49°F/max: 53°F) | freezing swimming |
| April | 53°F (min: 50°F/max: 57°F) | freezing swimming |
| May | 59°F (min: 52°F/max: 65°F) | freezing swimming |
| June | 68°F (min: 61°F/max: 76°F) | cool swimming |
| July | 76°F (min: 71°F/max: 81°F) | pleasant swimming |
| August | 81°F (min: 78°F/max: 83°F) | ideal swimming |
| September | 78°F (min: 74°F/max: 82°F) | pleasant swimming |
| October | 71°F (min: 67°F/max: 75°F) | pleasant swimming |
| November | 64°F (min: 60°F/max: 69°F) | cool swimming |
| December | 58°F (min: 53°F/max: 63°F) | freezing swimming |