Heatstroke Risk Information

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Go to NHK NEWS WEB(Japanese)
Go to NHK NEWS WEB(Japanese)

Exercise prohibited Heavy exercise prohibited Frequent rest needed Frequent water replenishment needed Moderate water replenishment suggested

Exercise prohibited Heavy exercise prohibited Frequent rest needed Frequent water replenishment needed Moderate water replenishment suggested

Heat stress index map

Click on the icons for more information on each location.

About the index

The heat stress index, or WGBT, measures how harmful the temperature is to the human body. The Ministry of the Environment releases an actual and predictive value every three hours.
For more information: All about WBGT
Source: Ministry of the Environment
The geographical classifications are those used by the Ministry of the Environment.