Heat Illness Prevention Information

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Special Heat Stroke Alert ・ Heat Stroke Alert

Updated at Oct 13(Tue)17:00
Today[Oct 13]
Map of Japan Alert Map(Today) Special Heat Stroke AlertsNot issued Heat Stroke AlertsNot issued WBGT forecast: 31+Not 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 Oct 13 23:00
Sapporo
16.6
Aomori
14.3
Akita
16.9
Morioka
16.5
Sendai
18.9
Yamagata
15.4
Fukushima
17.5
Mito
17.7
Utsunomiya
18.9
Maebashi
18.4
Kumagaya
19.3
Tokyo
18.0
Choshi
20.3
Yokohama
19.0
Nagano
16.8
Kofu
16.9
Shizuoka
18.2
Nagoya
18.7
Gifu
19.1
Tsu
19.6
Niigata
17.2
Toyama
19.1
Kanazawa
18.3
Fukui
19.6
Hikone
19.7
Kyoto
20.4
Osaka
19.8
Kobe
22.3
Nara
18.6
Wakayama
21.8
Okayama
19.9
Hiroshima
22.0
Matsue
19.9
Tottori
21.5
Shimonoseki
21.0
Tokushima
21.9
Takamatsu
20.4
Matsuyama
22.5
Kochi
22.2
Fukuoka
20.9
Oita
22.1
Nagasaki
20.3
Saga
20.8
Kumamoto
22.0
Miyazaki
21.2
Kagoshima
22.2
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.

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