Seasonal ranking
Coldest sea temperature in Japan in August
Where the sea is coolest across Japan during August, ranked by long-term monthly average water temperature. Kabira Bay (Okinawa, Japan) is the coolest at around 23°C. Open any spot for today's live water temperature and a 7-day swim forecast.
- 1Kabira BayOkinawa · Japan · Pacific OceanPleasant — swimmable without a wetsuit23°CAugust average
- 2Kondoi BeachOkinawa · Japan · Pacific OceanPleasant — swimmable without a wetsuit23°CAugust average
- 3Sunayama BeachOkinawa · Japan · Pacific OceanPleasant — swimmable without a wetsuit23°CAugust average
- 4Yuigahama BeachKanagawa · Japan · Pacific OceanWarm — comfortable swimming24°CAugust average
- 5Zushi BeachKanagawa · Japan · Pacific OceanWarm — comfortable swimming24°CAugust average
- 6Enoshima BeachKanagawa · Japan · Pacific OceanWarm — comfortable swimming24°CAugust average
- 7Kujukuri BeachChiba · Japan · Pacific OceanWarm — comfortable swimming24°CAugust average
- 8Onjuku BeachChiba · Japan · Pacific OceanWarm — comfortable swimming24°CAugust average
- 9Kujukuri BeachChiba · Japan · Pacific OceanWarm — comfortable swimming24°CAugust average
- 10Naminoue BeachOkinawa · Japan · East China SeaWarm — comfortable swimming28°CAugust average
- 11Emerald BeachOkinawa · Japan · Pacific OceanWarm — comfortable swimming28°CAugust average
- 12Manza BeachOkinawa · Japan · East China SeaWarm — comfortable swimming28°CAugust average
- 13Mibaru BeachOkinawa · Japan · Pacific OceanWarm — comfortable swimming28°CAugust average
- 14Nishihama BeachOkinawa · Japan · Pacific OceanWarm — comfortable swimming28°CAugust average
- 15Furuzamami BeachOkinawa · Japan · Pacific OceanWarm — comfortable swimming28°CAugust average
- 16Shirahama BeachWakayama · Japan · Pacific OceanWarm — comfortable swimming28°CAugust average
- 17Katsurahama BeachKochi · Japan · Pacific OceanWarm — comfortable swimming28°CAugust average
- 18Nigishima BeachMie · Japan · Pacific OceanWarm — comfortable swimming28°CAugust average
- 19Ibusuki BeachKagoshima · Japan · Pacific OceanWarm — comfortable swimming28°CAugust average
- 20Aoshima BeachMiyazaki · Japan · Pacific OceanWarm — comfortable swimming28°CAugust average
- 21Suma BeachHyogo · Japan · Pacific OceanWarm — comfortable swimming28°CAugust average
- 22Sunset Beach ChatanOkinawa · Japan · East China SeaWarm — comfortable swimming28°CAugust average
- 23Shirahama Beach IzuShizuoka · Japan · Pacific OceanWarm — comfortable swimming28°CAugust average
Coldest sea in August elsewhere
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Japan in August — frequently asked questions
- Where is the sea coldest in Japan in August?
- Kabira Bay in Japan has the coldest sea in Japan in August, averaging about 23.0 °C. Kondoi Beach (23.0 °C) and Sunayama Beach are the next coolest.
- How many beaches in Japan are warm enough to swim in August?
- 23 of the top 23 ranked beaches in Japan average 22 °C or more in August, which most swimmers find comfortable without a wetsuit.
- How are these August sea temperatures calculated?
- Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical August rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.
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