When to swim in Japan Sea temperature by month

Do you want to go to the seaside in Japan? But when should you go to be sure to enjoy good sea water temperature and be able to swim for a long time? Now or another month during the year? On this page, find the sea temperature by month in Japan.

Swimming in Japan by month

Discover swimming conditions in detail in Japan by month below. Click on the links for each month to see details about the sea temperature in the cities of: Tokyo, Kobe, Osaka, Sapporo (Hokkaido) and Naha (Okinawa).

Month sea temperature Details
34°F to 76°F Sea temperature
in Japan in january
31°F to 75°F Sea temperature
in Japan in february
31°F to 75°F Sea temperature
in Japan in march
36°F to 79°F Sea temperature
in Japan in april
41°F to 81°F Sea temperature
in Japan in may
51°F to 83°F Sea temperature
in Japan in june
58°F to 84°F Sea temperature
in Japan in july
63°F to 85°F Sea temperature
in Japan in august
63°F to 84°F Sea temperature
in Japan in september
57°F to 83°F Sea temperature
in Japan in october
48°F to 81°F Sea temperature
in Japan in november
40°F to 77°F Sea temperature
in Japan in december

* in at least part of the area.

Where and when should you swim in Japan?

Tokyo

When should you swim in Tokyo?

The best months for swimming in Tokyo are %MONTHS.

see
Kobe

When should you swim in Kobe?

The best months for swimming in Kobe are %MONTHS.

see
Osaka

When should you swim in Osaka?

The best months for swimming in Osaka are %MONTHS.

see
Sapporo (Hokkaido)

When should you swim in Sapporo (Hokkaido)?

The best month for swimming in Sapporo (Hokkaido) is august .

see
Naha (Okinawa)

When should you swim in Naha (Okinawa)?

The best months for swimming in Naha (Okinawa) are %MONTHS.

see

Other cities and places in Japan:

Water temperatures in Japan over the entire year

On this chart, we show you the variation of the average sea water temperature in Japan for the cities of: Tokyo, Kobe, Osaka, Sapporo (Hokkaido) and Naha (Okinawa).

Change units