Average monthly water temperature in Nagasaki, Japan

On this page you find the mean water temperature over the year in Nagasaki (Nagasaki), Japan. Understand how water temperatures vary throughout the year.

In Nagasaki, the water undergoes seasonal changes. The warmest month is August, with an average water temperature of 27°C (81°F).

The coldest water temperature month, February, has an average temperature of 14°C (57°F). It may not be the ideal time for a swim.

Nagasaki 3-Day Forecast

10-Day Forecast

More climate data for Nagasaki

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Nagasaki climate overview or explore weather in Japan.

Travel Inspiration

Chase the autumn leaves in Japan

Japan is one of these cases which turns into a gold, yellow and orange fairy tale starting from September. And we can honestly say: We cannot imagine a more beautiful season to visit Japan.

Walk the 88 temple circuit

We recommend walking the 88 temple circuit from April til October. Although June, July and August can be a bit wet, hot and humid.

The famous bamboo forests of Arashiyama

The famous bamboo forests of Arashiyama lie just outside the city center of Kyoto and is unique in the world. If you look at photos of this bamboo forest, it looks like you have landed in a fairy-tale world.

10 reasons why you should visit Japan in winter

Here are 10 reasons why you should plan a winter trip to Japan. During this period, popular sights are less busy and prices for flights and hotels much cheaper.

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