Heatstroke Risk Information

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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

Danger

WBGT: 31 or more. Exercise prohibited

Severe Warning

WBGT: 28-31. Heavy exercise prohibited

Warning

WBGT: 25-28. Frequent rest needed

Caution

WBGT: 21-25. Frequent water replenishment needed

Almost safe

WBGT: 21 or less. Moderate water replenishment suggested

The heat stress index, or WBGT, 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.