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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 19 18:00
Sapporo
11.0
Sendai
18.5
Tokyo
18.5
Niigata
15.5
Nagoya
16.3
Osaka
15.6
Hiroshima
16.2
Kochi
15.9
Fukuoka
19.5
Kagoshima
21.3
Naha
23.5
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.
