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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 Jun 14 12:00
Sapporo
23.0
Aomori
21.8
Akita
22.2
Morioka
21.2
Sendai
23.1
Yamagata
23.9
Fukushima
24.3
Mito
25.6
Utsunomiya
24.7
Maebashi
24.4
Kumagaya
24.7
Tokyo
25.2
Choshi
24.3
Yokohama
24.4
Nagano
23.0
Kofu
24.1
Shizuoka
23.6
Nagoya
22.6
Gifu
22.9
Tsu
23.0
Niigata
23.8
Toyama
24.5
Kanazawa
24.3
Fukui
23.7
Hikone
22.7
Kyoto
22.1
Osaka
22.4
Kobe
23.0
Nara
22.3
Wakayama
23.9
Okayama
23.4
Hiroshima
21.6
Matsue
22.8
Tottori
23.4
Shimonoseki
22.3
Tokushima
23.1
Takamatsu
23.6
Matsuyama
22.6
Kochi
22.9
Fukuoka
22.1
Oita
20.0
Nagasaki
21.2
Saga
22.1
Kumamoto
21.7
Miyazaki
22.0
Kagoshima
19.2
Naha
28.7
Daily Maximum WBGT and Forecast
| 06/14 | 06/15 | 06/16 | 06/14 15 | 06/14 18 | 06/14 21 | 06/14 24 | 06/15 03 | 06/15 06 | 06/15 09 | 06/15 12 | 06/15 15 | 06/15 18 | 06/15 21 | 06/15 24 | 06/16 03 | 06/16 06 | 06/16 09 | 06/16 12 | 06/16 15 | 06/16 18 | 06/16 21 | 06/16 24 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Izena | 29 | 28 | 28 | 29 | 25 | 25 | 24 | 23 | 22 | 25 | 26 | 28 | 26 | 25 | 24 | 23 | 23 | 25 | 26 | 28 | 24 | 23 | 23 |
| Oku | 29 | 27 | 27 | 26 | 23 | 24 | 23 | 23 | 23 | 25 | 27 | 25 | 24 | 24 | 24 | 23 | 22 | 22 | 25 | 27 | 24 | 22 | 21 |
| Nago | 30 | 28 | 27 | 26 | 26 | 25 | 24 | 24 | 25 | 26 | 28 | 27 | 27 | 26 | 25 | 24 | 24 | 24 | 26 | 27 | 26 | 24 | 23 |
| Kumejima | 31 | 28 | 28 | 28 | 26 | 25 | 24 | 25 | 26 | 27 | 28 | 28 | 27 | 26 | 25 | 24 | 24 | 26 | 28 | 27 | 25 | 23 | 22 |
| Miyagijima | 28 | 27 | 25 | 26 | 25 | 24 | 24 | 24 | 24 | 26 | 26 | 26 | 27 | 24 | 23 | 23 | 23 | 23 | 24 | 25 | 24 | 22 | 22 |
| Tokashiki | 28 | 26 | 24 | 25 | 24 | 23 | 23 | 23 | 24 | 25 | 25 | 26 | 26 | 23 | 23 | 22 | 22 | 23 | 24 | 24 | 23 | 21 | 21 |
| Naha | 29 | 28 | 27 | 27 | 26 | 25 | 24 | 25 | 26 | 27 | 27 | 28 | 27 | 26 | 25 | 24 | 24 | 24 | 25 | 27 | 25 | 24 | 23 |
| Itokazu | 27 | 26 | 24 | 25 | 24 | 23 | 23 | 24 | 24 | 25 | 25 | 26 | 25 | 24 | 24 | 23 | 22 | 22 | 24 | 23 | 23 | 22 | 21 |
| Minami-daito | 30 | 28 | 28 | 29 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 28 | 25 | 26 | 26 | 24 | 24 | 26 | 28 | 28 | 26 | 24 | 23 |
| Miyakojima | 32 | 28 | 27 | 30 | 27 | 26 | 26 | 26 | 26 | 28 | 28 | 28 | 26 | 26 | 26 | 24 | 24 | 26 | 27 | 27 | 26 | 25 | 24 |
| Ibaruma | 32 | 29 | 28 | 32 | 28 | 26 | 26 | 26 | 26 | 28 | 29 | 28 | 27 | 26 | 26 | 25 | 25 | 27 | 28 | 27 | 27 | 25 | 25 |
| Yonagunijima | 30 | 30 | 29 | 28 | 28 | 27 | 27 | 27 | 26 | 28 | 29 | 30 | 27 | 27 | 26 | 26 | 26 | 27 | 29 | 27 | 26 | 25 | 25 |
| Iriomotejima | 31 | 29 | 29 | 29 | 28 | 27 | 27 | 27 | 27 | 28 | 29 | 28 | 27 | 26 | 26 | 25 | 25 | 27 | 29 | 28 | 27 | 25 | 25 |
| Ishigakijima | 31 | 30 | 29 | 31 | 28 | 27 | 27 | 27 | 27 | 28 | 30 | 29 | 28 | 26 | 26 | 25 | 25 | 26 | 28 | 29 | 27 | 26 | 25 |
| Ohara | 31 | 29 | 30 | 30 | 27 | 26 | 26 | 26 | 26 | 28 | 29 | 28 | 27 | 26 | 25 | 25 | 26 | 27 | 29 | 30 | 27 | 25 | 25 |
| Hateruma | 32 | 29 | 30 | 29 | 26 | 25 | 25 | 25 | 25 | 27 | 29 | 28 | 26 | 25 | 25 | 25 | 26 | 27 | 29 | 30 | 27 | 25 | 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.
