Worst air pollution Miyakonojō, today and tomorrow
Today (16 July): Air quality in Miyakonojō is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 PM (O3: 29.3/100).
Tomorrow (17 July 2026): Air quality in Miyakonojō is fair. NO2 increases to fair; HCHO increases to fair; all other pollutants stay as today. Pollution peaks around 1:00 PM (O3: 34.0/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Use our Strava plugin to check your own exposure.
Miyakonojō's air quality reflects the Miyazaki Prefecture Kirishima Yaku volcanic highland position at 218 metres, with vehicle traffic on surrounding roads and the shochu distilling, agricultural, and manufacturing corridor contributing local sources. The surrounding Kirishima and Makise volcanic ranges create topographic variation, while consistent Pacific coastal maritime breezes provide background ventilation and Miyakonojo generally maintains moderate to good conditions for a major Japanese southern Kyushu highland agricultural city throughout most of the year.
Today - 16 July | Pollution peaks at 16:00
AQI:
Fair
29.3/100
PM2.5 (fine particles):
Good
7.2/100
PM10 (coarse particles):
Good
2.5/100
NO2 (nitrogen dioxide):
Good
9.8/100
O3 (ozone):
Fair
29.3/100
SO2 (sulfur dioxide):
Good
13.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.3/100
PM1 (ultrafine particles):
Good
6.5/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 13:00
AQI:
Fair
34.0/100
PM2.5 (fine particles):
Good
12.5/100
PM10 (coarse particles):
Good
3.7/100
NO2 (nitrogen dioxide):
Fair
23.4/100
O3 (ozone):
Fair
34.0/100
SO2 (sulfur dioxide):
Good
15.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
20.2/100
PM1 (ultrafine particles):
Good
15.1/100
Frequently Asked Questions
Is air quality bad in Miyakonojō right now?
On 16 July 2026, overall air quality in Miyakonojō is fair. AQI is the main air quality indicator at 29.3/100. Pollution peaks around 4:00 PM (O3: 29.3/100).
Will air quality be worse tomorrow in Miyakonojō?
On 17 July 2026, air quality conditions in Miyakonojō will be similar to today, with AQI forecast at fair at 34.0/100. Pollution peaks around 1:00 PM (O3: 34.0/100).
When is air pollution at its worst in Miyakonojō?
Pollution in Miyakonojō typically rises when traffic on the surrounding roads, manufacturing and food processing, as well as agricultural burning combine, especially once maritime winds die down. Maritime airflow normally ventilates the area well, though calmer spells let levels rise. Areas further inland without this ventilation tend to fare worse.
Are air quality levels in Miyakonojō based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
Check air quality in other popular cities:
Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app