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 3(Thu)5:00
Today[Jul 3]
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 3 12:00
Sapporo
25.5
Aomori
29.3
Akita
28.1
Morioka
29.0
Sendai
28.8
Yamagata
29.6
Fukushima
29.7
Mito
30.9
Utsunomiya
29.4
Maebashi
28.5
Kumagaya
30.8
Tokyo
31.5
Choshi
27.5
Yokohama
30.2
Nagano
28.4
Kofu
29.1
Shizuoka
29.0
Nagoya
29.9
Gifu
28.1
Tsu
29.6
Niigata
29.7
Toyama
30.4
Kanazawa
30.5
Fukui
29.8
Hikone
30.3
Kyoto
29.4
Osaka
29.7
Kobe
29.4
Nara
30.8
Wakayama
30.6
Okayama
30.7
Hiroshima
29.3
Matsue
29.9
Tottori
30.1
Shimonoseki
29.3
Tokushima
30.2
Takamatsu
30.6
Matsuyama
30.8
Kochi
30.2
Fukuoka
30.7
Oita
30.8
Nagasaki
29.3
Saga
31.0
Kumamoto
30.3
Miyazaki
29.0
Kagoshima
32.3
Naha
30.4
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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