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 Jul 3 11:00
Sapporo
27.3
Aomori
29.4
Akita
27.8
Morioka
27.9
Sendai
29.0
Yamagata
28.3
Fukushima
30.3
Mito
28.8
Utsunomiya
29.1
Maebashi
28.6
Kumagaya
30.5
Tokyo
31.5
Choshi
28.1
Yokohama
30.1
Nagano
28.1
Kofu
28.9
Shizuoka
29.0
Nagoya
30.0
Gifu
30.2
Tsu
29.8
Niigata
28.4
Toyama
30.6
Kanazawa
29.7
Fukui
30.2
Hikone
29.3
Kyoto
29.8
Osaka
30.2
Kobe
29.6
Nara
29.4
Wakayama
30.1
Okayama
30.9
Hiroshima
28.0
Matsue
30.0
Tottori
30.9
Shimonoseki
29.5
Tokushima
30.3
Takamatsu
30.1
Matsuyama
28.6
Kochi
29.6
Fukuoka
31.1
Oita
30.3
Nagasaki
29.2
Saga
30.3
Kumamoto
29.5
Miyazaki
29.4
Kagoshima
31.0
Naha
29.2
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.
