Heat Illness Prevention Information

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Heat Stroke Alerts have been issued. [Map View]

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Special Heat Stroke Alert ・ Heat Stroke Alert

Updated at Sep 1(Mon)5:00
Today[Sep 1]
Map of Japan Alert Map(Today) Special Heat Stroke AlertsNot issued Heat Stroke AlertsIssued WBGT forecast: 31+Issued

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 Sep 1 5:00
Sapporo
21.3
Aomori
20.7
Akita
23.9
Morioka
23.2
Sendai
24.8
Yamagata
22.1
Fukushima
24.1
Mito
25.8
Utsunomiya
25.4
Maebashi
24.2
Kumagaya
25.9
Tokyo
25.4
Choshi
26.3
Yokohama
26.1
Nagano
23.1
Kofu
23.7
Shizuoka
25.1
Nagoya
24.7
Gifu
24.5
Tsu
26.4
Niigata
25.2
Toyama
24.0
Kanazawa
24.0
Fukui
24.6
Hikone
24.4
Kyoto
24.5
Osaka
25.2
Kobe
26.3
Nara
24.9
Wakayama
25.8
Okayama
25.1
Hiroshima
25.5
Matsue
24.3
Tottori
24.0
Shimonoseki
25.9
Tokushima
24.5
Takamatsu
25.7
Matsuyama
24.7
Kochi
25.2
Fukuoka
26.3
Oita
24.8
Nagasaki
25.8
Saga
26.4
Kumamoto
25.5
Miyazaki
24.8
Kagoshima
27.0
Naha
26.1
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.

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