Stay updated with real-time air quality in Lewes, East Sussex featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
49
Good
Lewes, East Sussex
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.10 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
41.72 μg/m³
0
55
155
255
425
605+
14.54 ppb
0
55
71
86
201
201+
0.35 ppb
0
36
76
186
605
1005+
8.95 ppb
0
54
101
361
1250
2050+
0.05 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Lewes, East Sussex
Lewes, East Sussex
Scroll To Air Quality MapLoading...
AQI 96
Moderate
33.30μg/m³
PM2.5
67.18μg/m³
PM10
14.23ppb
O3
0.33ppb
SO2
8.20ppb
NO2
0.05ppm
CO
AQI 117
Unhealthy for sensitive groups
42.18μg/m³
PM2.5
51.46μg/m³
PM10
14.95ppb
O3
0.32ppb
SO2
7.81ppb
NO2
0.05ppm
CO
AQI 102
Unhealthy for sensitive groups
35.64μg/m³
PM2.5
42.19μg/m³
PM10
11.90ppb
O3
0.34ppb
SO2
7.92ppb
NO2
0.05ppm
CO
AQI 110
Unhealthy for sensitive groups
38.86μg/m³
PM2.5
64.46μg/m³
PM10
15.78ppb
O3
0.36ppb
SO2
9.18ppb
NO2
0.05ppm
CO
AQI 96
Moderate
32.97μg/m³
PM2.5
36.41μg/m³
PM10
14.05ppb
O3
0.30ppb
SO2
7.13ppb
NO2
0.06ppm
CO
AQI 105
Unhealthy for sensitive groups
36.70μg/m³
PM2.5
44.90μg/m³
PM10
14.86ppb
O3
0.36ppb
SO2
9.20ppb
NO2
0.04ppm
CO
The air quality data for East Sussex, UK is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Lewes, East Sussex are available every hour.
Lewes, East Sussex experienced its worst air quality at 09:00:00, 2026-03-09.
The best air quality in Lewes, East Sussex was observed at 01:00:00 on 2026-03-08.
The air quality in Lewes, East Sussex right now is Moderate, with an AQI of 96.
In Lewes, East Sussex, PM2.5 is the most frequently found pollutant.
When air quality in Lewes, East Sussex is compromised, staying indoors and wearing a mask can reduce health risks.
Lewes, East Sussex currently has a PM2.5 concentration of 33.305 μg/m3.
Lewes, East Sussex currently has a PM10 concentration of 67.184 μg/m3.
The current carbon monoxide (CO) level in Lewes, East Sussex is 0.052 ppm.
The current sulfur dioxide (SO2) concentration in Lewes, East Sussex is 0.332 ppb.
Lewes, East Sussex currently has an ozone (O3) concentration of 14.228 ppm.
The current level of nitrogen dioxide (NO2) in Lewes, East Sussex is 8.2 ppb.
All Rights Reserved © Ambee Inc. 2025