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Heat Stress Index: WBGT
Current WBGT and Forecast
Select the location
| (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 May 1 12:00
Sapporo
13.4
Sendai
15.4
Tokyo
21.4
Niigata
17.9
Nagoya
19.1
Osaka
19.1
Hiroshima
18.5
Kochi
18.1
Fukuoka
20.1
Kagoshima
22.2
Naha
23.3
Aomori
14.3
Akita
17.4
Morioka
15.9
Yamagata
16.9
Fukushima
19.5
Mito
20.5
Utsunomiya
17.9
Maebashi
19.1
Kumagaya
20.5
Choshi
20.6
Yokohama
19.2
Nagano
17.9
Kofu
20.1
Shizuoka
19.3
Gifu
19.6
Tsu
18.9
Toyama
17.2
Kanazawa
18.3
Fukui
16.7
Hikone
18.9
Kyoto
19.0
Kobe
17.5
Nara
19.0
Wakayama
17.8
Okayama
19.3
Matsue
19.4
Tottori
16.8
Shimonoseki
20.8
Tokushima
17.9
Takamatsu
20.3
Matsuyama
19.8
Oita
20.9
Nagasaki
19.8
Saga
19.8
Kumamoto
20.2
Miyazaki
20.0
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.
