熱中症予防情報サイト

  1. Home  ▶
  2. WBGT (Wet Bulb Globe Temperature)

Heat Stroke Alerts have been issued. [Map View]

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 Jun 25 0:00
Sapporo
17.7
Sendai
21.0
Tokyo
23.5
Niigata
22.3
Nagoya
23.5
Osaka
23.0
Hiroshima
22.5
Kochi
22.7
Fukuoka
22.2
Kagoshima
24.2
Naha
27.2

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.