Worst air pollution Sakai, today and tomorrow
Today (16 July): Air quality in Sakai is very poor. AQI and O3 are very poor; PM2.5, NO2, SO2, and PM1 are fair; PM10, CO, and HCHO are good. Pollution peaks around 4:00 PM (O3: 84.6/100).
Tomorrow (17 July 2026): Air quality in Sakai is very poor. NO2 decreases to medium; SO2 decreases to medium; all other pollutants stay as today. Pollution peaks around 1:00 PM (O3: 100/100). 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
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Sakai's air quality reflects the Osaka Bay coastal industrial position in the Kinki metropolitan area, with vehicle traffic on surrounding expressways and the industrial corridor generating elevated emissions alongside the Osaka Bay industrial waterfront. Osaka Bay breezes provide coastal ventilation, while the extraordinary Kinki metropolitan industrial background and summer photochemical ozone from the vast metropolitan corridor are the primary ongoing concerns and Sakai generally maintains moderate to elevated Osaka metropolitan southern industrial readings throughout most of the year.
Today - 16 July | Pollution peaks at 16:00
AQI:
Very poor
84.6/100
PM2.5 (fine particles):
Fair
20.8/100
PM10 (coarse particles):
Good
6.1/100
NO2 (nitrogen dioxide):
Fair
38.9/100
O3 (ozone):
Very poor
84.6/100
SO2 (sulfur dioxide):
Fair
33.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
10.3/100
PM1 (ultrafine particles):
Fair
25.3/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 13:00
AQI:
Very poor
100/100
PM2.5 (fine particles):
Fair
25.3/100
PM10 (coarse particles):
Good
7.3/100
NO2 (nitrogen dioxide):
Medium
40.9/100
O3 (ozone):
Very poor
100/100
SO2 (sulfur dioxide):
Medium
44.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
12.6/100
PM1 (ultrafine particles):
Fair
30.6/100
Frequently Asked Questions
Is air quality bad in Sakai right now?
On 16 July 2026, overall air quality in Sakai is very poor. AQI is the main air quality indicator at 84.6/100. Pollution peaks around 4:00 PM (O3: 84.6/100).
Will air quality be worse tomorrow in Sakai?
On 17 July 2026, air quality conditions in Sakai will be similar to today, with AQI forecast at very poor at 100/100. Pollution peaks around 1:00 PM (O3: 100/100).
When is air pollution at its worst in Sakai?
Air quality in Sakai tends to be worse when vehicle traffic as well as heavy industry such as steel, cement, or petrochemical processing build up and dry, windy weather picks up. Dust carried on these winds adds substantially to particulate levels. Photochemical reactions in the heat push ozone levels higher.
Are air quality levels in Sakai 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