Worst air pollution Sidmouth, today and tomorrow
Today (16 July): Air quality in Sidmouth is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 PM (O3: 29.1/100).
Tomorrow (17 July 2026): Air quality in Sidmouth is fair. NO2 increases to fair; all other pollutants stay as today. Pollution peaks around 8:00 PM (NO2: 36.6/100). 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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Air quality in Sidmouth is shaped by its location in Devon, where vehicle traffic and everyday urban activity dominate local sources. Shifting coastal winds offer a degree of natural ventilation, keeping pollution broadly in line with comparable UK towns. The A483 generates consistent traffic-related NO₂ and PM2.5, particularly during peak commuting hours.
Today - 16 July | Pollution peaks at 17:00
AQI:
Fair
29.1/100
PM2.5 (fine particles):
Good
9.2/100
PM10 (coarse particles):
Good
3.3/100
NO2 (nitrogen dioxide):
Good
18.0/100
O3 (ozone):
Fair
29.1/100
SO2 (sulfur dioxide):
Good
1.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.2/100
PM1 (ultrafine particles):
Good
7.1/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 20:00
AQI:
Fair
36.6/100
PM2.5 (fine particles):
Good
13.3/100
PM10 (coarse particles):
Good
4.5/100
NO2 (nitrogen dioxide):
Fair
36.6/100
O3 (ozone):
Fair
23.0/100
SO2 (sulfur dioxide):
Good
2.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.5/100
PM1 (ultrafine particles):
Good
12.9/100
Pollen forecast in Sidmouth
View pollen forecastFrequently Asked Questions
Is air quality bad in Sidmouth right now?
On 16 July 2026, overall air quality in Sidmouth is fair. AQI is the main air quality indicator at 29.1/100. Pollution peaks around 5:00 PM (O3: 29.1/100).
Will air quality be worse tomorrow in Sidmouth?
On 17 July 2026, air quality conditions in Sidmouth will be similar to today, with AQI forecast at fair at 36.6/100. Pollution peaks around 8:00 PM (NO2: 36.6/100).
When is air pollution at its worst in Sidmouth?
If you're tracking air quality in Sidmouth, expect it to move around quite a bit through the year. Summer brings a different issue — stronger sunlight can push up ozone levels on hot, sunny days, even though traffic pollution itself often disperses more easily. Through the colder months, readings near the A483 often rise, since chimney smoke and stagnant air stop pollutants clearing away. The shoulder seasons generally bring the mildest readings of the year.
Are air quality levels in Sidmouth 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