Japan’s Rainy Season (Tsuyu)

In early summer, most parts of Japan get visited by the so called Tsuyu, a rainy season.

According to the Japan Meteorological Agency (JMA), the rainy season is caused by the collision of cold northerly and warm southerly air masses, which results in a relatively stable bad weather front over the Japanese archipelago for several weeks. In Tokyo the 2020 rainy season is estimated to last from June 8 through July 20.

Fortunately it does not rain every day in Tokyo and the JMA provides some interesting probability data. The chance of rain on any given day is 45% while the probability of sunny weather is 27%. On the rainy days, half see only light rain, while the other half see more substantial amounts of precipitation.

The rainy season is generally not considered the most ideal time to tour Japan. However, with the smaller crowds and fewer tourists it does have its advantages. In particular many of the temples, parks and gardens are very attractive in the rain. So, as a resident it is a great opportunity to grab your umbrella and go explore the city!

Of my many wonderful memories of early visits to Japan, one involved my first experience at an open air hit spring, called an onsen, on a rainy day. For me, there is nothing more relaxing than sitting in an onsen and listening to the patter of the light rain.

Obviously, the Covid-19 pandemic may limit some rainy season enjoyment. But, overall, I am grateful for the opportunity to be living in Tokyo!

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Hi, I’m Paul Myer. Thank you for visiting my website. I hope you enjoy my writing and photography. If you want to stay connected, please subscribe to receive posts via email.

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