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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 Aug 25 6:00
Sapporo
21.8
Aomori
26.6
Akita
26.4
Morioka
23.9
Sendai
23.9
Yamagata
22.3
Fukushima
23.7
Mito
24.0
Utsunomiya
24.2
Maebashi
23.6
Kumagaya
24.6
Tokyo
25.2
Choshi
25.8
Yokohama
25.7
Nagano
23.3
Kofu
24.3
Shizuoka
24.5
Nagoya
26.1
Gifu
24.5
Tsu
25.8
Niigata
25.6
Toyama
25.1
Kanazawa
24.4
Fukui
25.3
Hikone
25.8
Kyoto
24.9
Osaka
26.5
Kobe
27.0
Nara
25.0
Wakayama
25.1
Okayama
24.7
Hiroshima
23.8
Matsue
25.5
Tottori
24.4
Shimonoseki
25.9
Tokushima
24.7
Takamatsu
25.5
Matsuyama
23.8
Kochi
24.2
Fukuoka
24.0
Oita
22.9
Nagasaki
24.4
Saga
24.2
Kumamoto
22.6
Miyazaki
23.6
Kagoshima
25.4
Naha
26.6
Daily Maximum WBGT and Forecast
| 08/25 | 08/26 | 08/27 | 08/25 09 | 08/25 12 | 08/25 15 | 08/25 18 | 08/25 21 | 08/25 24 | 08/26 03 | 08/26 06 | 08/26 09 | 08/26 12 | 08/26 15 | 08/26 18 | 08/26 21 | 08/26 24 | 08/27 03 | 08/27 06 | 08/27 09 | 08/27 12 | 08/27 15 | 08/27 18 | 08/27 21 | 08/27 24 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hikone | 35 | 34 | 30 | 31 | 34 | 35 | 30 | 28 | 26 | 25 | 26 | 31 | 34 | 33 | 31 | 29 | 28 | 27 | 27 | 30 | 28 | 28 | 27 | 28 | 28 |
| Maizuru | 35 | 34 | 30 | 32 | 35 | 33 | 30 | 28 | 25 | 25 | 25 | 32 | 34 | 32 | 29 | 28 | 27 | 26 | 26 | 29 | 30 | 28 | 28 | 27 | 26 |
| Kyoto | 33 | 34 | 30 | 29 | 33 | 33 | 28 | 27 | 26 | 26 | 26 | 31 | 33 | 34 | 30 | 27 | 27 | 26 | 26 | 29 | 29 | 30 | 28 | 27 | 27 |
| Osaka | 34 | 34 | 30 | 30 | 34 | 33 | 29 | 29 | 28 | 27 | 26 | 31 | 34 | 34 | 30 | 28 | 27 | 26 | 26 | 30 | 29 | 29 | 27 | 27 | 27 |
| Toyo-oka | 35 | 33 | 31 | 31 | 35 | 33 | 29 | 28 | 26 | 25 | 24 | 31 | 33 | 31 | 29 | 27 | 26 | 25 | 24 | 27 | 31 | 29 | 29 | 27 | 26 |
| Kobe | 33 | 34 | 30 | 30 | 33 | 33 | 29 | 29 | 28 | 28 | 28 | 31 | 33 | 34 | 29 | 28 | 27 | 27 | 27 | 29 | 29 | 30 | 27 | 27 | 27 |
| Nara | 35 | 35 | 31 | 29 | 33 | 35 | 29 | 28 | 26 | 25 | 24 | 29 | 33 | 35 | 30 | 28 | 27 | 26 | 25 | 30 | 30 | 31 | 28 | 27 | 26 |
| Wakayama | 32 | 33 | 29 | 30 | 31 | 32 | 29 | 28 | 28 | 27 | 27 | 31 | 32 | 33 | 29 | 28 | 26 | 26 | 26 | 29 | 29 | 29 | 28 | 28 | 27 |
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.
