Worst air pollution Bath, today and tomorrow
Today (16 July): Air quality in Bath is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 PM (O3: 35.5/100).
Tomorrow (17 July 2026): Air quality in Bath is fair. AQI improves to medium; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 4:00 PM (O3: 48.7/100). 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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Being part of Bath and North East Somerset, Bath sees an air quality profile that's largely down to traffic and general town-centre activity. Thanks to the dominant maritime airflow, pollution rarely lingers for long, which keeps average readings fairly unremarkable by UK standards. The M74 sees the heaviest traffic, and that shows up clearly in local roadside monitoring.
Today - 16 July | Pollution peaks at 14:00
AQI:
Fair
35.5/100
PM2.5 (fine particles):
Good
10.7/100
PM10 (coarse particles):
Good
3.8/100
NO2 (nitrogen dioxide):
Fair
21.4/100
O3 (ozone):
Fair
35.5/100
SO2 (sulfur dioxide):
Good
3.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.3/100
PM1 (ultrafine particles):
Good
9.6/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 16:00
AQI:
Medium
48.7/100
PM2.5 (fine particles):
Good
17.0/100
PM10 (coarse particles):
Good
5.5/100
NO2 (nitrogen dioxide):
Fair
28.2/100
O3 (ozone):
Medium
48.7/100
SO2 (sulfur dioxide):
Good
5.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.7/100
PM1 (ultrafine particles):
Good
17.3/100
Pollen forecast in Bath
View pollen forecastFrequently Asked Questions
Is air quality bad in Bath right now?
On 16 July 2026, overall air quality in Bath is fair. AQI is the main air quality indicator at 35.5/100. Pollution peaks around 2:00 PM (O3: 35.5/100).
Will air quality be worse tomorrow in Bath?
On 17 July 2026, air quality conditions in Bath will be similar to today, with NO2 forecast at fair at 28.2/100. Pollution peaks around 4:00 PM (O3: 48.7/100).
When is air pollution at its worst in Bath?
There's a clear yearly cycle to air quality in Bath if you look closely. Summer's more of a mixed bag: ozone can spike in strong sun, but overall dispersion tends to be better than the depths of winter. In deep winter, a lack of wind lets M74 traffic fumes and woodsmoke settle instead of blowing through. Spring and autumn usually sit somewhere in between, so it's really the extremes of the year worth watching.
Are air quality levels in Bath 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