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 Aug 31 17:00
Sapporo
23.7
Aomori
26.3
Akita
25.3
Morioka
25.0
Sendai
25.4
Yamagata
27.6
Fukushima
26.3
Mito
29.0
Utsunomiya
28.2
Maebashi
27.1
Kumagaya
29.3
Tokyo
26.9
Choshi
28.2
Yokohama
28.6
Nagano
27.9
Kofu
27.3
Shizuoka
28.3
Nagoya
28.9
Gifu
29.0
Tsu
30.0
Niigata
29.3
Toyama
28.2
Kanazawa
28.4
Fukui
28.4
Hikone
29.7
Kyoto
29.7
Osaka
28.5
Kobe
27.6
Nara
29.3
Wakayama
29.3
Okayama
30.4
Hiroshima
28.2
Matsue
29.1
Tottori
27.2
Shimonoseki
28.2
Tokushima
28.0
Takamatsu
30.2
Matsuyama
29.2
Kochi
29.6
Fukuoka
28.5
Oita
26.4
Nagasaki
27.7
Saga
28.3
Kumamoto
27.5
Miyazaki
28.0
Kagoshima
29.6
Naha
30.0
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.
