The rainy season was over Tokyo Japan.

The rainy season at beginning summer is called "Tuyu" in Japan.It has rainy and humid during the period.

2016year state of Tuyu.
Okinawa, Amami: begin 16 May, finish 18 June.
Kyushu, Shikoku, Chugoku, Kinki, Tokai: begin 4 June, finish 18 July.
Kanto: begin 5 June, finish ???
Hokuriku, Tohoku: begin 13 June, finish ???

Many Japanese don't really like Tuyu.