Worst air pollution Owerri, today and tomorrow
Today (16 July): Air quality in Owerri is fair. NO2 and HCHO are fair; AQI, PM2.5, and PM1 are medium; PM10, O3, SO2, and CO are good. Pollution peaks around 9:00 PM (PM1: 46.6/100).
Tomorrow (17 July 2026): Air quality in Owerri is fair. PM2.5 increases to fair; all other pollutants stay as today. Pollution peaks around 12:00 AM (PM1: 42.7/100). 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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Owerri's air quality reflects the flat southeastern Nigeria Imo River forest zone at 91 metres, with vehicle traffic on surrounding roads and the vehicle density, informal industrial, and government corridor generating elevated PM2.5 and black carbon. The tropical wet season's convective rain provides periodic cleansing, while dry season Harmattan dust and agricultural burning elevate PM10 and Owerri generally maintains moderate to elevated southeastern Nigerian state capital readings throughout most of the year.
Today - 16 July | Pollution peaks at 21:00
AQI:
Medium
46.6/100
PM2.5 (fine particles):
Medium
42.7/100
PM10 (coarse particles):
Good
14.8/100
NO2 (nitrogen dioxide):
Fair
28.5/100
O3 (ozone):
Good
18.2/100
SO2 (sulfur dioxide):
Good
11.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
27.1/100
PM1 (ultrafine particles):
Medium
46.6/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 00:00
AQI:
Medium
42.7/100
PM2.5 (fine particles):
Fair
39.9/100
PM10 (coarse particles):
Good
11.4/100
NO2 (nitrogen dioxide):
Fair
24.8/100
O3 (ozone):
Good
14.2/100
SO2 (sulfur dioxide):
Good
9.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
25.7/100
PM1 (ultrafine particles):
Medium
42.7/100
Frequently Asked Questions
Is air quality bad in Owerri right now?
On 16 July 2026, overall air quality in Owerri is fair. NO2 is the main pollutant at 28.5/100. Pollution peaks around 9:00 PM (PM1: 46.6/100).
Will air quality be worse tomorrow in Owerri?
On 17 July 2026, air quality conditions in Owerri will be similar to today, with PM2.5 forecast at fair at 39.9/100. Pollution peaks around 12:00 AM (PM1: 42.7/100).
When is air pollution at its worst in Owerri?
Pollution in Owerri typically rises when vehicle traffic and agricultural activity combine, especially once dry, windy weather picks up. Dust carried on these winds adds substantially to particulate levels. Such events are most common in the drier shoulder seasons.
Are air quality levels in Owerri 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