Seasonal ranking
Warmest sea temperature in Japan in December
Where the sea is warmest across Japan during December, ranked by long-term monthly average water temperature. Nishihama Beach (Okinawa, Japan) tops the list at around 27°C. Open any spot for today's live water temperature and a 7-day swim forecast.
- 1Nishihama BeachOkinawa · Japan · Philippine SeaWarm — comfortable swimming27°CDecember average
- 2Sunayama BeachOkinawa · Japan · Philippine SeaWarm — comfortable swimming27°CDecember average
- 3Kondoi BeachOkinawa · Japan · East China SeaWarm — comfortable swimming25°CDecember average
- 4Kondoi Beach TaketomiOkinawa · Japan · East China SeaWarm — comfortable swimming25°CDecember average
- 5Yuigahama BeachKanagawa · Japan · Pacific OceanMild — fine for a swim, cool at first20°CDecember average
- 6Shirahama BeachWakayama · Japan · Pacific OceanMild — fine for a swim, cool at first20°CDecember average
- 7Zushi BeachKanagawa · Japan · Pacific OceanMild — fine for a swim, cool at first20°CDecember average
- 8Enoshima BeachKanagawa · Japan · Pacific OceanMild — fine for a swim, cool at first20°CDecember average
- 9Kabira BayOkinawa · Japan · Pacific OceanMild — fine for a swim, cool at first20°CDecember average
- 10Emerald Beach OkinawaOkinawa · Japan · East China SeaMild — fine for a swim, cool at first19°CDecember average
- 11Naminoue BeachOkinawa · Japan · East China SeaMild — fine for a swim, cool at first19°CDecember average
- 12Manza BeachOkinawa · Japan · East China SeaMild — fine for a swim, cool at first19°CDecember average
- 13Mibaru BeachOkinawa · Japan · Pacific OceanMild — fine for a swim, cool at first19°CDecember average
- 14Furuzamami BeachOkinawa · Japan · Pacific OceanMild — fine for a swim, cool at first19°CDecember average
- 15Katsurahama BeachKochi · Japan · Pacific OceanMild — fine for a swim, cool at first19°CDecember average
- 16Nigishima BeachMie · Japan · Pacific OceanMild — fine for a swim, cool at first19°CDecember average
- 17Ibusuki BeachKagoshima · Japan · Pacific OceanMild — fine for a swim, cool at first19°CDecember average
- 18Aoshima BeachMiyazaki · Japan · Pacific OceanMild — fine for a swim, cool at first19°CDecember average
- 19Suma BeachHyogo · Japan · Pacific OceanMild — fine for a swim, cool at first19°CDecember average
- 20Shirahama Beach IzuShizuoka · Japan · Pacific OceanMild — fine for a swim, cool at first19°CDecember average
- 21Kujukuri BeachChiba · Japan · Pacific OceanCold — wetsuit strongly recommended14°CDecember average
- 22Onjuku BeachChiba · Japan · Pacific OceanCold — wetsuit strongly recommended14°CDecember average
- 23Onjuku BeachChiba · Japan · Pacific OceanCold — wetsuit strongly recommended14°CDecember average
Warmest sea in December elsewhere
Japan in December — frequently asked questions
- Where is the sea warmest in Japan in December?
- Nishihama Beach in Japan has the warmest sea in Japan in December, averaging about 27.0 °C. Sunayama Beach (27.0 °C) and Kondoi Beach follow close behind.
- How many beaches in Japan are warm enough to swim in December?
- 4 of the top 23 ranked beaches in Japan average 22 °C or more in December, which most swimmers find comfortable without a wetsuit.
- How are these December sea temperatures calculated?
- Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical December rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.
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