Worst air pollution Miyazaki, today and tomorrow
Today (16 July): Air quality in Miyazaki is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 45.0/100).
Tomorrow (17 July 2026): Air quality in Miyazaki is poor. AQI worsens to poor; O3 increases to poor; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 3:00 PM (O3: 74.5/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Miyazaki's air quality benefits from its exceptional Pacific Ocean and Hyuga Sea coastal position in Kyushu, with consistent Pacific and Hyuga maritime breezes providing reliable ventilation. Vehicle traffic on surrounding roads and the tourism, food processing, and sports corridor contribute modest local sources, while the outstanding Pacific coastal exposure and the Kirishima Mountains rising inland create topographic variation and Miyazaki generally maintains good to moderate conditions for a major Japanese Pacific coastal city throughout most of the year.
Today - 16 July | Pollution peaks at 15:00
AQI:
Medium
45.0/100
PM2.5 (fine particles):
Good
10.9/100
PM10 (coarse particles):
Good
3.6/100
NO2 (nitrogen dioxide):
Good
13.1/100
O3 (ozone):
Medium
45.0/100
SO2 (sulfur dioxide):
Good
2.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.0/100
PM1 (ultrafine particles):
Good
10.7/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 15:00
AQI:
Poor
74.5/100
PM2.5 (fine particles):
Good
19.5/100
PM10 (coarse particles):
Good
6.1/100
NO2 (nitrogen dioxide):
Good
12.9/100
O3 (ozone):
Poor
74.5/100
SO2 (sulfur dioxide):
Good
4.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
13.0/100
PM1 (ultrafine particles):
Fair
22.6/100
Frequently Asked Questions
Is air quality bad in Miyazaki right now?
On 16 July 2026, overall air quality in Miyazaki is medium. AQI is the main air quality indicator at 45.0/100. Pollution peaks around 3:00 PM (O3: 45.0/100).
Will air quality be worse tomorrow in Miyazaki?
On 17 July 2026, air quality conditions in Miyazaki will be worse than today, with AQI forecast at poor at 74.5/100. Pollution peaks around 3:00 PM (O3: 74.5/100).
When is air pollution at its worst in Miyazaki?
In Miyazaki, vehicle traffic, manufacturing and food processing, as well as seasonal tourism traffic are the main local sources, with conditions worsening when the sea breeze weakens. Sea breezes typically keep conditions in check, except during still weather. This natural ventilation is one reason coastal areas often see better readings than inland cities.
Are air quality levels in Miyazaki 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.
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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