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Heat Stress Index: WBGT
Current WBGT and Forecast
Select the location
| (Blue) Almost safe | (Sky) Caution | (Yellow) Warning | (Orange) Severe Warning | (Red) Danger |
|---|---|---|---|---|
| < 21 appropriate water replenishment suggested |
21 - 25 water should be replenished often |
25 - 28 rests should be provided often |
28 - 31 heavy exercise prohibited |
≥ 31 exercise prohibited |
WBGT monitoring
As of Sep 21 9:00
Sapporo
21.2
Sendai
22.0
Tokyo
22.6
Niigata
21.0
Nagoya
23.8
Osaka
23.5
Hiroshima
21.5
Kochi
26.6
Fukuoka
25.5
Kagoshima
27.9
Naha
28.0
Note
WBGT index is one of the empirical indices representing the heat stress to which an individual is exposed. (ISO7243)
WBGT varies depending on environmental situation and condition.
