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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 15 12:00
Sapporo
25.6
Aomori
28.8
Akita
29.7
Morioka
24.7
Sendai
27.4
Yamagata
28.3
Fukushima
27.2
Mito
28.6
Utsunomiya
26.7
Maebashi
27.9
Kumagaya
27.0
Tokyo
25.8
Choshi
27.2
Yokohama
25.9
Nagano
25.9
Kofu
26.2
Shizuoka
28.2
Nagoya
27.4
Gifu
30.0
Tsu
27.3
Niigata
28.2
Toyama
29.4
Kanazawa
30.6
Fukui
31.0
Hikone
29.5
Kyoto
29.0
Osaka
27.6
Kobe
29.5
Nara
28.6
Wakayama
28.3
Okayama
30.0
Hiroshima
26.9
Matsue
29.7
Tottori
29.1
Shimonoseki
28.6
Tokushima
29.1
Takamatsu
29.9
Matsuyama
30.2
Kochi
28.9
Fukuoka
30.0
Oita
28.7
Nagasaki
27.6
Saga
30.0
Kumamoto
28.7
Miyazaki
28.6
Kagoshima
28.9
Naha
30.0
Daily Maximum WBGT and Forecast
| 08/15 | 08/16 | 08/17 | 08/15 15 | 08/15 18 | 08/15 21 | 08/15 24 | 08/16 03 | 08/16 06 | 08/16 09 | 08/16 12 | 08/16 15 | 08/16 18 | 08/16 21 | 08/16 24 | 08/17 03 | 08/17 06 | 08/17 09 | 08/17 12 | 08/17 15 | 08/17 18 | 08/17 21 | 08/17 24 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Taiza | 30 | 27 | 30 | 29 | 27 | 25 | 24 | 24 | 24 | 26 | 26 | 27 | 24 | 23 | 22 | 24 | 25 | 28 | 29 | 30 | 26 | 26 | 25 |
| Miyazu | 31 | 28 | 30 | 29 | 27 | 24 | 22 | 22 | 22 | 27 | 27 | 28 | 25 | 22 | 21 | 21 | 23 | 28 | 30 | 29 | 26 | 25 | 25 |
| Maizuru | 32 | 28 | 31 | 30 | 27 | 25 | 24 | 24 | 23 | 27 | 28 | 27 | 25 | 23 | 22 | 22 | 23 | 28 | 31 | 29 | 26 | 25 | 24 |
| Fukuchiyama | 32 | 28 | 31 | 31 | 27 | 25 | 24 | 24 | 23 | 27 | 28 | 28 | 25 | 24 | 22 | 22 | 23 | 27 | 29 | 31 | 27 | 26 | 25 |
| Miyama | 29 | 26 | 28 | 29 | 27 | 22 | 23 | 22 | 22 | 25 | 26 | 26 | 24 | 22 | 22 | 21 | 21 | 26 | 28 | 27 | 25 | 23 | 22 |
| Sonobe | 31 | 27 | 30 | 31 | 27 | 23 | 23 | 23 | 23 | 26 | 27 | 25 | 24 | 23 | 22 | 21 | 22 | 26 | 30 | 29 | 26 | 24 | 23 |
| Kyoto | 31 | 26 | 29 | 31 | 27 | 25 | 24 | 24 | 25 | 26 | 26 | 25 | 25 | 24 | 24 | 24 | 24 | 27 | 29 | 29 | 27 | 25 | 25 |
| Kyotanabe | 29 | 26 | 28 | 29 | 26 | 24 | 24 | 24 | 24 | 25 | 26 | 25 | 24 | 23 | 23 | 22 | 23 | 27 | 28 | 28 | 26 | 24 | 24 |
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.
