Worst air pollution Littlehampton, today and tomorrow
Today (16 July): Air quality in Littlehampton is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 PM (O3: 29.1/100).
Tomorrow (17 July 2026): Air quality in Littlehampton is fair. AQI improves to medium; NO2 decreases to medium; all other pollutants stay as today. Pollution peaks around 8:00 PM (NO2: 42.1/100). Airmine updates local air quality forecasts four times daily.
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Commuter traffic feeding onto the A96 adds a further, consistent contribution to local readings. The air quality picture in Littlehampton reflects a typical West Sussex town, with traffic emissions and local commercial activity as key contributors. Southwesterly winds offer a degree of natural ventilation, keeping pollution broadly in line with comparable UK towns.
Today - 16 July | Pollution peaks at 17:00
AQI:
Fair
29.1/100
PM2.5 (fine particles):
Good
9.8/100
PM10 (coarse particles):
Good
3.5/100
NO2 (nitrogen dioxide):
Fair
22.1/100
O3 (ozone):
Fair
29.1/100
SO2 (sulfur dioxide):
Good
2.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.2/100
PM1 (ultrafine particles):
Good
7.6/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 20:00
AQI:
Medium
42.1/100
PM2.5 (fine particles):
Good
14.2/100
PM10 (coarse particles):
Good
4.8/100
NO2 (nitrogen dioxide):
Medium
42.1/100
O3 (ozone):
Fair
23.0/100
SO2 (sulfur dioxide):
Good
3.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.5/100
PM1 (ultrafine particles):
Good
13.8/100
Pollen forecast in Littlehampton
View pollen forecastFrequently Asked Questions
Is air quality bad in Littlehampton right now?
On 16 July 2026, overall air quality in Littlehampton is fair. AQI is the main air quality indicator at 29.1/100. Pollution peaks around 5:00 PM (O3: 29.1/100).
Will air quality be worse tomorrow in Littlehampton?
On 17 July 2026, air quality conditions in Littlehampton will be similar to today, with O3 forecast at fair at 23.0/100. Pollution peaks around 8:00 PM (NO2: 42.1/100).
When is air pollution at its worst in Littlehampton?
Spring and autumn usually sit somewhere in between, so it's really the extremes of the year worth watching. In Littlehampton, pollution levels don't stay flat — winter and summer look pretty different. The coldest months usually bring the worst readings, as heating and temperature inversions keep A96 emissions from dispersing normally. In summer, ozone can build up on sunny afternoons, though windier, warmer weather usually helps clear traffic-related pollution faster than in winter.
Are air quality levels in Littlehampton 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