Japan is warmer in June, but it rains frequently occasionally, so the temperature also changes.

So, to go to Japan in June, the clothes to be prepared are:

1.

Long sleeve shirt,

2.

Short sleeve shirt,

3.

T-shirts,

4.

Jeans,

5.

Casual shoes,

6.

Wear a sun hat.

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note:

In public places in Japan, no matter how hot the weather is, you can't wear a shirt instead of a vest.

Because, sweat soaked the shirt, you will accidentally rub it on others on the bus, which will be very annoying.

Therefore, Japanese people usually consciously wear a T-shirt under their shirts.