Heat Illness Prevention Information

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Heat Stroke Alerts have been issued. [Map View]

Heat Stress Index: WBGT

Current WBGT and Forecast

 

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(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 19 6:00
Sapporo
18.1
Aomori
21.5
Akita
21.4
Morioka
20.7
Sendai
24.5
Yamagata
22.5
Fukushima
23.3
Mito
23.9
Utsunomiya
23.9
Maebashi
24.5
Kumagaya
25.3
Tokyo
26.1
Choshi
25.4
Yokohama
25.6
Nagano
23.4
Kofu
24.0
Shizuoka
25.8
Nagoya
25.4
Gifu
24.1
Tsu
26.1
Niigata
24.6
Toyama
24.4
Kanazawa
23.0
Fukui
24.1
Hikone
24.3
Kyoto
24.3
Osaka
25.2
Kobe
27.0
Nara
24.7
Wakayama
24.5
Okayama
24.9
Hiroshima
24.1
Matsue
25.3
Tottori
24.3
Shimonoseki
26.1
Tokushima
24.1
Takamatsu
25.1
Matsuyama
24.8
Kochi
24.1
Fukuoka
25.8
Oita
24.4
Nagasaki
25.2
Saga
25.5
Kumamoto
24.9
Miyazaki
24.1
Kagoshima
26.1
Naha
24.5

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.