Heat Illness Prevention Information

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Special Heat Stroke Alert ・ Heat Stroke Alert

Updated at Jun 6(Sat)5:00
Today[Jun 6]
Map of Japan Alert Map(Today) Special Heat Stroke AlertsNot issued Heat Stroke AlertsNot issued 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 Jun 6 7:00
Sapporo
11.5
Aomori
11.1
Akita
12.9
Morioka
11.4
Sendai
12.4
Yamagata
13.7
Fukushima
13.8
Mito
15.3
Utsunomiya
14.8
Maebashi
15.1
Kumagaya
15.3
Tokyo
15.2
Choshi
15.0
Yokohama
15.3
Nagano
16.1
Kofu
17.4
Shizuoka
17.4
Nagoya
18.1
Gifu
17.9
Tsu
19.7
Niigata
15.6
Toyama
19.8
Kanazawa
19.1
Fukui
17.7
Hikone
18.5
Kyoto
20.1
Osaka
18.8
Kobe
19.6
Nara
19.4
Wakayama
19.1
Okayama
20.4
Hiroshima
21.1
Matsue
22.6
Tottori
20.8
Shimonoseki
19.4
Tokushima
20.3
Takamatsu
20.6
Matsuyama
20.5
Kochi
20.9
Fukuoka
20.3
Oita
21.6
Nagasaki
17.7
Saga
19.1
Kumamoto
20.8
Miyazaki
22.1
Kagoshima
22.4
Naha
26.0
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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