Worst air pollution Southend, today and tomorrow
Today (16 July): Air quality in Southend is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 AM (NO2: 36.8/100).
Tomorrow (17 July 2026): Air quality in Southend is fair. PM2.5 increases to fair; all other pollutants stay as today. Pollution peaks around 2:00 PM (O3: 35.5/100). 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 Southend-on-Sea, Southend sees an air quality profile that's largely down to traffic and general town-centre activity. Moist Atlantic fronts tend to disperse pollutants reasonably well, keeping readings close to typical UK small-town levels. Emissions along the A26 represent the town's main traffic-related pollution source.
Today - 16 July | Pollution peaks at 05:00
AQI:
Fair
36.8/100
PM2.5 (fine particles):
Good
18.7/100
PM10 (coarse particles):
Good
6.6/100
NO2 (nitrogen dioxide):
Fair
36.8/100
O3 (ozone):
Fair
31.3/100
SO2 (sulfur dioxide):
Good
5.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.8/100
PM1 (ultrafine particles):
Good
15.5/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 14:00
AQI:
Fair
35.5/100
PM2.5 (fine particles):
Fair
20.9/100
PM10 (coarse particles):
Good
7.4/100
NO2 (nitrogen dioxide):
Fair
32.4/100
O3 (ozone):
Fair
35.5/100
SO2 (sulfur dioxide):
Good
5.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.7/100
PM1 (ultrafine particles):
Good
17.2/100
Pollen forecast in Southend
View pollen forecastFrequently Asked Questions
Is air quality bad in Southend right now?
On 16 July 2026, overall air quality in Southend is fair. AQI is the main air quality indicator at 36.8/100. Pollution peaks around 5:00 AM (NO2: 36.8/100).
Will air quality be worse tomorrow in Southend?
On 17 July 2026, air quality conditions in Southend will be similar to today, with AQI forecast at fair at 35.5/100. Pollution peaks around 2:00 PM (O3: 35.5/100).
When is air pollution at its worst in Southend?
Southend's air quality follows a familiar seasonal pattern most UK towns share. The coldest months usually bring the worst readings, as heating and temperature inversions keep A26 emissions from dispersing normally. Come summer, it's ozone rather than particulates that's the bigger concern, especially on still, sunny days. Most of spring and autumn stays fairly steady, right in the middle of those two extremes.
Are air quality levels in Southend 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