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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 29 19:00
Sapporo
16.1
Aomori
18.2
Akita
20.7
Morioka
19.2
Sendai
19.6
Yamagata
18.8
Fukushima
18.5
Mito
18.3
Utsunomiya
18.1
Maebashi
19.7
Kumagaya
19.7
Tokyo
19.7
Choshi
20.7
Yokohama
20.7
Nagano
20.3
Kofu
23.4
Shizuoka
26.4
Nagoya
26.6
Gifu
26.3
Tsu
27.0
Niigata
19.8
Toyama
22.0
Kanazawa
25.3
Fukui
25.3
Hikone
26.3
Kyoto
25.9
Osaka
27.8
Kobe
27.3
Nara
26.8
Wakayama
27.2
Okayama
26.9
Hiroshima
25.8
Matsue
26.5
Tottori
27.0
Shimonoseki
27.5
Tokushima
27.7
Takamatsu
27.1
Matsuyama
26.9
Kochi
27.5
Fukuoka
27.7
Oita
27.3
Nagasaki
26.7
Saga
27.4
Kumamoto
27.8
Miyazaki
27.3
Kagoshima
27.7
Naha
27.5
Daily Maximum WBGT and Forecast
| 08/29 | 08/30 | 08/31 | 08/29 21 | 08/29 24 | 08/30 03 | 08/30 06 | 08/30 09 | 08/30 12 | 08/30 15 | 08/30 18 | 08/30 21 | 08/30 24 | 08/31 03 | 08/31 06 | 08/31 09 | 08/31 12 | 08/31 15 | 08/31 18 | 08/31 21 | 08/31 24 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ogochi | 22 | 23 | 28 | 19 | 19 | 20 | 20 | 20 | 21 | 23 | 21 | 21 | 20 | 19 | 19 | 24 | 27 | 28 | 24 | 23 | 22 |
| Ome | 23 | 25 | 30 | 19 | 20 | 20 | 19 | 21 | 23 | 25 | 23 | 22 | 21 | 21 | 22 | 28 | 28 | 30 | 27 | 26 | 24 |
| Nerima | 22 | 25 | 30 | 20 | 20 | 20 | 20 | 22 | 23 | 25 | 23 | 23 | 22 | 22 | 23 | 27 | 29 | 30 | 26 | 25 | 23 |
| Hachioji | 23 | 25 | 30 | 19 | 20 | 20 | 20 | 21 | 23 | 25 | 23 | 22 | 21 | 21 | 22 | 27 | 28 | 30 | 27 | 26 | 24 |
| Fuchu | 23 | 25 | 30 | 20 | 20 | 21 | 21 | 22 | 24 | 25 | 24 | 23 | 22 | 22 | 23 | 27 | 29 | 30 | 26 | 26 | 24 |
| Tokyo | 22 | 25 | 30 | 20 | 20 | 21 | 21 | 22 | 23 | 25 | 23 | 22 | 22 | 22 | 23 | 28 | 29 | 30 | 26 | 25 | 23 |
| Edogawa-rinkai | 23 | 25 | 30 | 22 | 21 | 22 | 22 | 22 | 23 | 24 | 25 | 23 | 22 | 23 | 23 | 27 | 29 | 30 | 26 | 26 | 24 |
| Oshima | 29 | 29 | 31 | 23 | 22 | 23 | 23 | 25 | 28 | 29 | 26 | 25 | 24 | 24 | 25 | 29 | 31 | 31 | 27 | 25 | 25 |
| Miyakejima | 31 | 31 | 31 | 26 | 25 | 24 | 25 | 28 | 30 | 31 | 27 | 27 | 27 | 27 | 28 | 31 | 30 | 29 | 25 | 24 | 24 |
| Hachijojima | 32 | 31 | 31 | 26 | 25 | 25 | 25 | 29 | 31 | 31 | 26 | 25 | 25 | 25 | 26 | 30 | 31 | 29 | 26 | 25 | 24 |
| Chichijima | 31 | 31 | 31 | 26 | 25 | 25 | 25 | 29 | 30 | 31 | 26 | 25 | 25 | 25 | 26 | 29 | 30 | 31 | 27 | 26 | 26 |
| Minami-torishima |
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.
