Worst air pollution Lewes, today and tomorrow
Today (16 July): Air quality in Lewes is fair. PM2.5, PM10, and NO2 are fair; AQI and O3 are medium; SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 AM (O3: 48.6/100).
Tomorrow (17 July 2026): Air quality in Lewes is fair. PM10 decreases to good; all other pollutants stay as today. Pollution peaks around 8:00 AM (O3: 51.8/100). 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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Lewes experiences air quality conditions shaped chiefly by Atlantic and Bay breezes, and coastal exposure keeps air quality consistently favorable. Overall, Lewes sees air quality that tracks fairly closely with typical conditions for its wider region. Visitors and residents alike tend to notice the clearest air outside the warmest summer weeks.
Today - 16 July | Pollution peaks at 09:00
AQI:
Medium
48.6/100
PM2.5 (fine particles):
Fair
22.6/100
PM10 (coarse particles):
Fair
20.3/100
NO2 (nitrogen dioxide):
Fair
37.3/100
O3 (ozone):
Medium
48.6/100
SO2 (sulfur dioxide):
Good
8.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.4/100
PM1 (ultrafine particles):
Good
16.0/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 08:00
AQI:
Medium
51.8/100
PM2.5 (fine particles):
Fair
22.6/100
PM10 (coarse particles):
Good
14.1/100
NO2 (nitrogen dioxide):
Fair
38.9/100
O3 (ozone):
Medium
51.8/100
SO2 (sulfur dioxide):
Good
7.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
9.8/100
PM1 (ultrafine particles):
Good
15.1/100
Pollen forecast in Lewes
View pollen forecastFrequently Asked Questions
Is air quality bad in Lewes right now?
On 16 July 2026, overall air quality in Lewes is fair. NO2 is the main pollutant at 37.3/100. Pollution peaks around 9:00 AM (O3: 48.6/100).
Will air quality be worse tomorrow in Lewes?
On 17 July 2026, air quality conditions in Lewes will be similar to today, with NO2 forecast at fair at 38.9/100. Pollution peaks around 8:00 AM (O3: 51.8/100).
When is air pollution at its worst in Lewes?
Lewes's air quality follows a clear seasonal pattern. In short, once summer ozone season ends, winter typically offers the cleanest air, whereas the hottest, most humid summer weeks bring the year's highest ozone readings. Suburban and rural areas generally see less of the persistent traffic-driven pollution that affects the urban core.
Are air quality levels in Lewes 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