Average monthly water temperature in Hachijo, Japan
On this page you find the mean water temperature over the year in Hachijo (), Japan. Understand how water temperatures vary throughout the year.
Water temperatures in Hachijo fluctuate across the seasons. The warmest month, August, averages 27°C (81°F).
The coldest water temperature month is March, averaging 17°C (63°F). Seasonal shifts offer opportunities to explore different activities depending on the time of year.
Hachijo Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Hachijo - and find the best time to visit.
Hachijo 3-Day Forecast
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Hachijo climate overview or explore weather in Japan.
Popular this month
Where to go in July - average daytime high across popular destinations.
Osaka
32°C (90°F) Tokyo30°C (86°F) Naha
30°C (86°F) Kyoto31°C (88°F) Hakone28°C (82°F) Hakuba26°C (79°F) Sapporo24°C (75°F) Niseko24°C (75°F) 
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