Is the air quality good in southern Japan?
As of July 22, 2026, poor air quality and haze is impacting several cities in southern Japan, including Kobe and Osaka.

"Moderate" to "unhealthy for sensitive groups" level air quality in southern Japan on the morning of July 22, 2026. Source: IQAir.
Why is there an air quality alert in southern Japan?
Extreme heat has impacted Japan this week, as temperatures soared over 40 degrees Celsius (104 degrees Fahrenheit) (1). Smog has been trapped in the region due to the heat wave.
Authorities are advising people to turn on their air conditioners, drink water, consume salt, and avoid prolonged outdoor activity.
Where is poor air quality impacting southern Japan?
In addition to Kobe and Osaka, numerous cities are being impacted by the heat and poor air quality, including:
How can I protect myself from poor air quality?
- Get a free air quality app for real-time air quality alerts and forecasts.
- Shut doors and windows and set the HVAC to recirculate mode.
- Contribute to your community’s outdoor air quality data.
- Stay indoors when air quality is poor; if you do need to go outdoors, wear a KN95/FFP2 mask.
- Run a high-performance air purifier to filter particles, gases, and other pollutants.












