Typhoon/Concentrated Heavy Rain

• Daily Life
• Disaster Preparedness, Crime Prevention and Emergency
• Disaster Prevention
• Evacuation Sites
• Weather Information

The number of typhoons and concentrated heavy rain that exceed the capacity of sewerage systems has been increasing in Japan. In Shinjuku City, basements and streets may have been flooded, while sand and earth have entered some buildings because of typhoons and heavy rain.

・Typhoons
Typhoons are concentrated between July and September in Japan, causing landslides and floods.

・Concentrated Heavy Rain
Concentrated heavy rain refers to a heavy downpour that falls on a limited area for a limited time. This type of rain has been increasing in Tokyo in recent years. Since it typically occurs suddenly in a limited area, it is difficult to predict when and where such a downpour will occur.
Sewerage systems and small rivers may overflow and cause severe damage.

For information about typhoons and concentrated heavy rain, click here.
“Heavy Rainfall and Typhoons” Tokyo Intercultural Portal Site

Note: The website also introduces preparations that can be made before typhoons and concentrated heavy rain, so check and prepare accordingly.
“Preparations Before a Typhoon/Heavy Rains”

Evacuating during a Typhoon or Concentrated Heavy Rain

Preparation is vital to avoiding storm and flood damage. It is a good idea to check the hazard map and confirm any potentially high-risk locations. It is also important to listen carefully to the information that public institutions provide, and to take appropriate action for evacuating to a safer place depending on the weather conditions and your own location.

・For information about hazard maps, click here.

・For weather information for Shinjuku City, click here.

Note: You can also receive disaster preparedness weather information via e-mail.
Shinjuku City disaster preparedness weather information e-mail system

・For information about preparing for heavy rainfall, click here.

・For information about evacuating during wind and storm disasters, click here.

Note: Evacuation information is available in multiple languages on thehe Cabinet Office website.
Cabinet Office website: