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 6(Sun)5:00
Today[Jul 6]
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 6 12:00
Sapporo
26.6
Aomori
27.4
Akita
25.6
Morioka
26.6
Sendai
26.4
Yamagata
26.5
Fukushima
28.0
Mito
31.0
Utsunomiya
31.4
Maebashi
30.7
Kumagaya
31.3
Tokyo
29.6
Choshi
29.7
Yokohama
31.9
Nagano
29.1
Kofu
30.8
Shizuoka
30.4
Nagoya
29.9
Gifu
28.3
Tsu
30.4
Niigata
28.4
Toyama
28.2
Kanazawa
28.7
Fukui
28.0
Hikone
30.1
Kyoto
30.6
Osaka
28.5
Kobe
29.4
Nara
30.8
Wakayama
29.6
Okayama
30.3
Hiroshima
28.3
Matsue
28.8
Tottori
30.0
Shimonoseki
29.0
Tokushima
31.3
Takamatsu
29.3
Matsuyama
28.9
Kochi
30.7
Fukuoka
30.4
Oita
30.6
Nagasaki
29.0
Saga
29.1
Kumamoto
30.1
Miyazaki
29.9
Kagoshima
31.3
Naha
26.8
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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