Swimming in Japan in january 2025 Sea temperature by city in january

In january in Japan swimming conditions vary by city. Details below:

As for Okinawa, Nago, Naha, Aguni-jima, Higashi, Iheya-jima, Ishigaki-jima, Itoman, Izenajima, Miyagi Island, Yonaguni-jima and Yoron-jima, swimming is pleasant in january. The sea water is 73°F on average (min: 69°F/max: 76°F) so you can easily spend time in the water.

Swimming in january in Kochi, Kagoshima (Kyushu), Goto islands, Kumano Kodo, Muroto, Tanega-shima, Tosashimizu, Yakushima, Yokohama, Minamata, Miyazaki, Nichinan, Nobeoka, Saiki, Shibushi Bay, Tateyama and Uwajima is possible but the sea is generally cool. So though the sea temperature may sometimes reach 67°F, it can also go as low as 60°F. Note that the average is 64°F.

Swimming in january in Tokyo, Fukuoka, Hakone, Izumo, Nagasaki, Takamatsu, Tokushima, Ise, Izu, Kamakura, Kitakyushu, Asahi, Beppu/Ōita, Chiba, Fuji, Hamamatsu, Karatsu, Kimitsu, Matsuyama, Niihama, Sasebo, Shingu, Shizuoka, Tamano and Wakayama is possible... with a wetsuit! Indeed, the water is cold at this time of year with an average temperature of 60°F (min: 57°F/max: 64°F).

Forget about swimming in Hiroshima, Nagoya, Osaka, Sapporo (Hokkaido), Abashiri, Akita, Aomori, Hakodate, Kanazawa, Kobe, Okayama, Sendai (Honshu), Kure, Miyajima, Monbetsu, Niigata, Sado island, Shiretoko National Park, Tottori, Wajima, Hachinohe, Hamada, Hikari, Hitachi-Naka, Ishinomaki, Iwaki, Joetsu, Kamaishi, Kurayoshi, Kushiro, Maizuru, Masuda, Miyako, Muroran, Mutsu, Nagaoka, Nanao, Nemuro, Noshiro, Otaru, Sakata, Tomakomai, Toyama, Ube and Wakkanai in january! The water temperature is freezing, reaching as low as 55°F (and only 62°F at the best of times). Our advice: plan on sightseeing, and don't bring your beach towel!