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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 Oct 3 8:00
Sapporo
14.3
Sendai
18.8
Tokyo
18.3
Niigata
19.4
Nagoya
16.9
Osaka
17.2
Hiroshima
14.8
Kochi
18.4
Fukuoka
17.8
Kagoshima
22.4
Naha
27.5
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.
