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Heat Stroke Alerts have been issued.
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 Aug 13 5:00
Sapporo
19.6
Sendai
24.5
Tokyo
24.2
Niigata
25.7
Nagoya
24.4
Osaka
25.2
Hiroshima
25.9
Kochi
25.2
Fukuoka
26.3
Kagoshima
25.9
Naha
27.0
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.
