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 Jul 1(Wed)17:00
Today[Jul 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 Jul 1 17:00
Sapporo
20.9
Aomori
22.5
Akita
21.9
Morioka
23.6
Sendai
22.2
Yamagata
23.2
Fukushima
23.0
Mito
22.4
Utsunomiya
24.7
Maebashi
24.0
Kumagaya
23.5
Tokyo
23.7
Choshi
21.6
Yokohama
23.1
Nagano
22.9
Kofu
23.0
Shizuoka
23.2
Nagoya
22.6
Gifu
22.9
Tsu
21.6
Niigata
21.8
Toyama
21.9
Kanazawa
23.0
Fukui
23.7
Hikone
22.4
Kyoto
22.2
Osaka
22.9
Kobe
21.7
Nara
22.1
Wakayama
21.8
Okayama
21.3
Hiroshima
22.1
Matsue
21.4
Tottori
22.1
Shimonoseki
24.4
Tokushima
22.6
Takamatsu
21.9
Matsuyama
23.3
Kochi
22.9
Fukuoka
24.7
Oita
24.7
Nagasaki
23.0
Saga
24.6
Kumamoto
25.6
Miyazaki
26.6
Kagoshima
28.8
Naha
29.3
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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