Worst air pollution Havant, today and tomorrow
Today (9 August): Air quality in Havant 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: 56.2/100).
Tomorrow (10 August 2026): Air quality in Havant is fair. All pollutants stay as today. Pollution peaks around 9:00 PM (NO2: 52.9/100). 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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The air quality picture in Havant reflects a typical Hampshire town, with traffic emissions and local commercial activity as key contributors. Emissions along the A40 represent the town's main traffic-related pollution source. Inland breezes from the surrounding countryside offer a degree of natural ventilation, keeping pollution broadly in line with comparable UK towns.
Today - 9 August | Pollution peaks at 20:00
AQI:
Medium
56.2/100
PM2.5 (fine particles):
Good
19.2/100
PM10 (coarse particles):
Good
6.8/100
NO2 (nitrogen dioxide):
Medium
56.2/100
O3 (ozone):
Fair
28.4/100
SO2 (sulfur dioxide):
Good
14.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.3/100
PM1 (ultrafine particles):
Good
16.8/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 21:00
AQI:
Medium
52.9/100
PM2.5 (fine particles):
Good
11.3/100
PM10 (coarse particles):
Good
3.9/100
NO2 (nitrogen dioxide):
Medium
52.9/100
O3 (ozone):
Fair
25.0/100
SO2 (sulfur dioxide):
Good
7.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.2/100
PM1 (ultrafine particles):
Good
10.8/100
Pollen forecast in Havant
View pollen forecastFrequently Asked Questions
Is air quality bad in Havant right now?
On 9 August 2026, overall air quality in Havant is fair. O3 is the main pollutant at 28.4/100. Pollution peaks around 8:00 PM (NO2: 56.2/100).
Will air quality be worse tomorrow in Havant?
On 10 August 2026, air quality conditions in Havant will be similar to today, with O3 forecast at fair at 25.0/100. Pollution peaks around 9:00 PM (NO2: 52.9/100).
When is air pollution at its worst in Havant?
In Havant, pollution levels don't stay flat — winter and summer look pretty different. Winter mornings can be the trickiest, with cold, still conditions trapping A40 traffic fumes and smoke from home fires close to the ground. Warmer months swap one problem for another — less smoke and heating pollution, but more ozone on the sunniest days. Spring and autumn usually sit somewhere in between, so it's really the extremes of the year worth watching.
Are air quality levels in Havant 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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