Worst air pollution Weston-super-Mare, today and tomorrow
Today (9 August): Air quality in Weston-super-Mare is fair. PM2.5 and PM1 are fair; AQI, NO2, and O3 are medium; PM10, SO2, CO, and HCHO are good. Pollution peaks around 3:00 PM (O3: 56.2/100).
Tomorrow (10 August 2026): Air quality in Weston-super-Mare is fair. AQI worsens to fair; PM2.5 decreases to good; NO2 decreases to good; O3 increases to fair; PM1 decreases to good; all other pollutants stay as today. Pollution peaks around 5:00 PM (O3: 33.3/100). Airmine updates local air quality forecasts four times daily.
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Like much of North Somerset, Weston-super-Mare's air quality is shaped less by industry these days and more by everyday road traffic. Thanks to the prevailing Atlantic airflow, pollution rarely lingers for long, which keeps average readings fairly unremarkable by UK standards. The A55 sees the heaviest traffic, and that shows up clearly in local roadside monitoring.
Today - 9 August | Pollution peaks at 15:00
AQI:
Medium
56.2/100
PM2.5 (fine particles):
Fair
21.7/100
PM10 (coarse particles):
Good
5.8/100
NO2 (nitrogen dioxide):
Medium
45.4/100
O3 (ozone):
Medium
56.2/100
SO2 (sulfur dioxide):
Good
11.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.8/100
PM1 (ultrafine particles):
Fair
27.6/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 17:00
AQI:
Fair
33.3/100
PM2.5 (fine particles):
Good
7.2/100
PM10 (coarse particles):
Good
2.6/100
NO2 (nitrogen dioxide):
Good
15.3/100
O3 (ozone):
Fair
33.3/100
SO2 (sulfur dioxide):
Good
3.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.6/100
PM1 (ultrafine particles):
Good
6.4/100
Pollen forecast in Weston-super-Mare
View pollen forecastFrequently Asked Questions
Is air quality bad in Weston-super-Mare right now?
On 9 August 2026, overall air quality in Weston-super-Mare is fair. PM1 is the main pollutant at 27.6/100. Pollution peaks around 3:00 PM (O3: 56.2/100).
Will air quality be worse tomorrow in Weston-super-Mare?
On 10 August 2026, air quality conditions in Weston-super-Mare will be similar to today, with AQI forecast at fair at 33.3/100. Pollution peaks around 5:00 PM (O3: 33.3/100).
When is air pollution at its worst in Weston-super-Mare?
In Weston-super-Mare, pollution levels don't stay flat — winter and summer look pretty different. 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 A55 often rise, since chimney smoke and stagnant air stop pollutants clearing away. Spring and autumn usually sit somewhere in between, so it's really the extremes of the year worth watching.
Are air quality levels in Weston-super-Mare 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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 9 August 2026 at 20:27 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
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