Worst air pollution Worthing, today and tomorrow

Today (9 August): Air quality in Worthing is fair. O3 is fair; AQI and NO2 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 PM (NO2: 41.1/100).
Tomorrow (10 August 2026): Air quality in Worthing is fair. AQI worsens to fair; NO2 increases to fair; all other pollutants stay as today. Pollution peaks around 9:00 PM (NO2: 38.6/100). 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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Emissions along the A483 represent the town's main traffic-related pollution source. Worthing sits within West Sussex, and its air quality profile is driven mainly by road traffic and the density of the centre. The region's typical south-westerlies tend to disperse pollutants reasonably well, keeping readings close to typical UK small-town levels.

Today - 9 August | Pollution peaks at 20:00

AQI:

Medium

41.1/100

PM2.5 (fine particles):

Good

15.2/100

PM10 (coarse particles):

Good

5.3/100

NO2 (nitrogen dioxide):

Medium

41.1/100

O3 (ozone):

Fair

28.4/100

SO2 (sulfur dioxide):

Good

7.2/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

3.3/100

PM1 (ultrafine particles):

Good

13.3/100

Levels show the poorest local air quality during the day

Tomorrow - 10 August | Pollution peaks at 21:00

AQI:

Fair

38.6/100

PM2.5 (fine particles):

Good

8.9/100

PM10 (coarse particles):

Good

3.1/100

NO2 (nitrogen dioxide):

Fair

38.6/100

O3 (ozone):

Fair

25.0/100

SO2 (sulfur dioxide):

Good

3.9/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

3.2/100

PM1 (ultrafine particles):

Good

8.5/100

Pollen forecast in Worthing

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Frequently Asked Questions

Is air quality bad in Worthing right now?

On 9 August 2026, overall air quality in Worthing is fair. O3 is the main pollutant at 28.4/100. Pollution peaks around 8:00 PM (NO2: 41.1/100).

Will air quality be worse tomorrow in Worthing?

On 10 August 2026, air quality conditions in Worthing will be similar to today, with AQI forecast at fair at 38.6/100. Pollution peaks around 9:00 PM (NO2: 38.6/100).

When is air pollution at its worst in Worthing?

If you're tracking air quality in Worthing, 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. Winter tends to be worst, with wood burning, home heating, and still, cold air trapping traffic fumes from the A483 closer to ground level.

Are air quality levels in Worthing 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: 10 August 2026 at 02:34 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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