Worst air pollution Rieti, today and tomorrow
Today (16 July): Air quality in Rieti is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 AM (O3: 44.6/100).
Tomorrow (17 July 2026): Air quality in Rieti is medium. All pollutants stay as today. Pollution peaks around 11:00 AM (O3: 44.0/100). 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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Given its setting in the enclosed Rieti valley basin, Rieti's air quality is largely a function of vehicle traffic and residential wood-burning trapped by the basin, moderated by the broader Lazio weather patterns. Emissions tend to build during calm, high-pressure spells and clear more readily once winds or rain move through.
Today - 16 July | Pollution peaks at 11:00
AQI:
Medium
44.6/100
PM2.5 (fine particles):
Good
9.3/100
PM10 (coarse particles):
Good
7.4/100
NO2 (nitrogen dioxide):
Good
12.7/100
O3 (ozone):
Medium
44.6/100
SO2 (sulfur dioxide):
Good
0.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
14.3/100
PM1 (ultrafine particles):
Good
7.5/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 11:00
AQI:
Medium
44.0/100
PM2.5 (fine particles):
Good
11.2/100
PM10 (coarse particles):
Good
9.3/100
NO2 (nitrogen dioxide):
Good
12.4/100
O3 (ozone):
Medium
44.0/100
SO2 (sulfur dioxide):
Good
0.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
19.8/100
PM1 (ultrafine particles):
Good
8.4/100
Pollen forecast in Rieti
View pollen forecastFrequently Asked Questions
Is air quality bad in Rieti right now?
On 16 July 2026, overall air quality in Rieti is medium. AQI is the main air quality indicator at 44.6/100. Pollution peaks around 11:00 AM (O3: 44.6/100).
Will air quality be worse tomorrow in Rieti?
On 17 July 2026, air quality conditions in Rieti will be similar to today, with AQI forecast at medium at 44.0/100. Pollution peaks around 11:00 AM (O3: 44.0/100).
When is air pollution at its worst in Rieti?
People in Rieti tend to notice worse air when pine and oak pollen peaks, or because of vehicle traffic and residential wood-burning trapped by the basin; the remainder of the year in Lazio generally brings clearer, steadier conditions, especially on breezier days that help disperse local emissions across the surrounding countryside and built-up streets alike.
Are air quality levels in Rieti 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.
Want to see air quality forecasts for other cities in Italy?
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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