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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 May 20 10:00
Sapporo
17.2
Sendai
15.8
Tokyo
15.8
Niigata
16.0
Nagoya
21.6
Osaka
18.6
Hiroshima
19.2
Kochi
24.2
Fukuoka
19.8
Kagoshima
23.1
Naha
26.2
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.
