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Heat Stress Index: WBGT

(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 1 21:00
Sapporo
13.3
Sendai
17.7
Tokyo
19.8
Niigata
17.4
Nagoya
20.0
Osaka
20.6
Hiroshima
18.5
Kochi
19.1
Fukuoka
22.5
Kagoshima
21.8
Naha
25.2
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.

Heat Stroke Alert

  For Jun 2 (Updated at Jun 1 17:00)
地図(日本全域) 熱中症警戒アラート発表状況

No alerts have been issued.

クリッカブルマップ アラート発表状況詳細

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