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 24 6:00
Sapporo
22.1
Aomori
22.9
Akita
23.5
Morioka
22.6
Sendai
23.1
Yamagata
22.2
Fukushima
23.0
Mito
22.9
Utsunomiya
24.3
Maebashi
24.1
Kumagaya
24.3
Tokyo
24.6
Choshi
25.1
Yokohama
25.4
Nagano
22.5
Kofu
22.8
Shizuoka
24.3
Nagoya
24.5
Gifu
25.0
Tsu
26.0
Niigata
24.5
Toyama
25.2
Kanazawa
24.3
Fukui
25.0
Hikone
25.8
Kyoto
25.4
Osaka
26.5
Kobe
26.8
Nara
24.6
Wakayama
25.6
Okayama
25.0
Hiroshima
23.9
Matsue
25.5
Tottori
24.6
Shimonoseki
26.0
Tokushima
25.0
Takamatsu
26.1
Matsuyama
24.4
Kochi
24.8
Fukuoka
26.3
Oita
23.2
Nagasaki
26.0
Saga
25.3
Kumamoto
25.0
Miyazaki
24.1
Kagoshima
25.6
Naha
25.5
Daily Maximum WBGT and Forecast
| 08/24 | 08/25 | 08/26 | 08/24 09 | 08/24 12 | 08/24 15 | 08/24 18 | 08/24 21 | 08/24 24 | 08/25 03 | 08/25 06 | 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Taiza | 33 | 33 | 30 | 30 | 33 | 32 | 28 | 27 | 26 | 25 | 26 | 33 | 32 | 31 | 29 | 28 | 27 | 27 | 26 | 29 | 30 | 29 | 28 | 27 | 27 |
| Miyazu | 35 | 35 | 31 | 31 | 35 | 32 | 28 | 26 | 25 | 24 | 25 | 32 | 35 | 31 | 29 | 28 | 26 | 25 | 25 | 29 | 31 | 29 | 28 | 26 | 26 |
| Maizuru | 34 | 34 | 33 | 31 | 34 | 33 | 29 | 27 | 26 | 25 | 25 | 31 | 34 | 32 | 30 | 29 | 27 | 26 | 25 | 28 | 33 | 30 | 28 | 27 | 27 |
| Fukuchiyama | 34 | 34 | 31 | 30 | 33 | 34 | 29 | 27 | 26 | 24 | 25 | 30 | 33 | 34 | 29 | 28 | 27 | 26 | 25 | 28 | 31 | 30 | 28 | 27 | 27 |
| Miyama | 34 | 33 | 29 | 29 | 33 | 34 | 29 | 26 | 24 | 22 | 23 | 30 | 32 | 33 | 28 | 26 | 25 | 23 | 22 | 27 | 29 | 28 | 27 | 25 | 24 |
| Sonobe | 33 | 33 | 31 | 29 | 33 | 33 | 29 | 26 | 24 | 23 | 23 | 30 | 32 | 33 | 29 | 26 | 24 | 23 | 23 | 29 | 31 | 31 | 27 | 25 | 24 |
| Kyoto | 34 | 33 | 32 | 30 | 33 | 34 | 30 | 28 | 27 | 26 | 26 | 30 | 33 | 32 | 30 | 28 | 27 | 26 | 26 | 29 | 31 | 32 | 29 | 27 | 27 |
| Kyotanabe | 34 | 33 | 31 | 30 | 33 | 34 | 29 | 27 | 26 | 25 | 25 | 29 | 32 | 33 | 29 | 27 | 25 | 24 | 25 | 29 | 30 | 31 | 28 | 26 | 25 |
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.

