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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 8 13:00
Sapporo
17.2
Sendai
17.9
Tokyo
19.5
Niigata
17.1
Nagoya
22.7
Osaka
22.0
Hiroshima
18.4
Kochi
26.3
Fukuoka
21.8
Kagoshima
27.0
Naha
24.6
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.
