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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 Apr 25 8:00
Sapporo
12.2
Sendai
19.5
Tokyo
20.4
Niigata
12.4
Nagoya
18.0
Osaka
16.1
Hiroshima
12.3
Kochi
17.9
Fukuoka
16.9
Kagoshima
16.7
Naha
20.0
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.
