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Foreign Language Top Page > ニュース > Administrative Info > Staying Safe During Heavy Rains and Typhoons

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Staying Safe During Heavy Rains and Typhoons

Summers in Japan are hot and humid, and it rains a lot. Typhoons in particular are common from July through September, and water-related disasters, such as floods, frequently occur during this period.
Water-related disasters often happen suddenly, and water may enter your home very quickly.

This page explains what you should know when heavy rains occur or a typhoon is approaching. Please read it carefully to avoid injury and other problems.

Knowing the following five terms is essential, so please remember them.
● Saigai (disaster): An event such as an earthquake, heavy rains or a typhoon that disrupts daily life and puts lives in danger
● Kozui (flood): When heavy rains cause a river to rise and overflow its banks
● Dosha saigai (landslide disaster): When soil or rocks fall from a mountain and disrupt daily life and put lives in danger
● Hinan (evacuation): Going to a safe place
● Hinanjo (evacuation site): A safe place to go when your home is not safe

It is vital to prepare ahead of time so that you can act without panicking. Please check the websites below to learn how to prepare for heavy rains and typhoons:

“Preparations Before Heavy Rains/Typhoons” (Tokyo Intercultural Portal Site)

“Heavy Rainfall and Typhoons” (Tokyo Intercultural Portal Site)

“Typhoon/Concentrated Heavy Rain” (Shinjuku City foreign-language website)

July 25, 2026