Heat Stress Index: WBGT
Current WBGT and Forecast
| Hokkaido | Tohoku | Kanto | Koshin |
| Tokai | Hokuriku | Kinki | Chugoku |
| Shikoku | Kyushu | Okinawa |
| (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 16 3:00
Sapporo
15.8
Aomori
19.5
Akita
18.9
Morioka
19.7
Sendai
19.6
Yamagata
19.5
Fukushima
20.4
Mito
22.2
Utsunomiya
22.2
Maebashi
20.4
Kumagaya
23.8
Tokyo
24.1
Choshi
20.4
Yokohama
23.3
Nagano
19.0
Kofu
22.2
Shizuoka
23.5
Nagoya
20.4
Gifu
19.7
Tsu
22.1
Niigata
20.2
Toyama
19.3
Kanazawa
19.1
Fukui
18.9
Hikone
19.3
Kyoto
22.0
Osaka
22.2
Kobe
23.7
Nara
21.7
Wakayama
22.9
Okayama
23.5
Hiroshima
23.0
Matsue
22.5
Tottori
23.9
Shimonoseki
24.5
Tokushima
23.0
Takamatsu
24.1
Matsuyama
24.7
Kochi
24.6
Fukuoka
25.4
Oita
24.9
Nagasaki
25.0
Saga
25.1
Kumamoto
24.9
Miyazaki
25.3
Kagoshima
25.8
Naha
27.0
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.
