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 Sep 18 15:00
Sapporo
18.0
Aomori
20.3
Akita
20.0
Morioka
18.9
Sendai
21.6
Yamagata
20.4
Fukushima
21.5
Mito
23.2
Utsunomiya
26.3
Maebashi
25.1
Kumagaya
25.2
Tokyo
25.5
Choshi
28.6
Yokohama
28.4
Nagano
21.8
Kofu
25.3
Shizuoka
28.3
Nagoya
27.7
Gifu
26.3
Tsu
29.3
Niigata
21.6
Toyama
22.2
Kanazawa
23.4
Fukui
24.1
Hikone
27.3
Kyoto
27.1
Osaka
27.0
Kobe
27.1
Nara
26.4
Wakayama
27.9
Okayama
27.0
Hiroshima
24.8
Matsue
22.1
Tottori
23.1
Shimonoseki
24.4
Tokushima
28.1
Takamatsu
26.8
Matsuyama
27.0
Kochi
29.7
Fukuoka
28.8
Oita
26.8
Nagasaki
28.2
Saga
26.8
Kumamoto
26.6
Miyazaki
29.3
Kagoshima
30.5
Naha
30.1
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.
