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)
52
Moderate
Lewes, East Sussex
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.74 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.94 μg/m³
0
55
155
255
425
605+
35.73 ppb
0
55
71
86
201
201+
1.06 ppb
0
36
76
186
605
1005+
4.32 ppb
0
54
101
361
1250
2050+
0.80 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 52
Moderate
9.91μg/m³
PM2.5
22.48μg/m³
PM10
35.95ppb
O3
0.92ppb
SO2
4.06ppb
NO2
1.01ppm
CO
AQI 52
Moderate
9.52μg/m³
PM2.5
20.13μg/m³
PM10
35.59ppb
O3
0.89ppb
SO2
3.07ppb
NO2
1.01ppm
CO
AQI 49
Good
8.94μg/m³
PM2.5
20.83μg/m³
PM10
26.86ppb
O3
0.94ppb
SO2
3.78ppb
NO2
1.01ppm
CO
AQI 52
Moderate
10.45μg/m³
PM2.5
20.47μg/m³
PM10
33.12ppb
O3
0.93ppb
SO2
4.01ppb
NO2
1.01ppm
CO
AQI 44
Good
8.44μg/m³
PM2.5
14.48μg/m³
PM10
40.78ppb
O3
0.81ppb
SO2
2.54ppb
NO2
1.01ppm
CO
AQI 52
Moderate
9.52μg/m³
PM2.5
19.14μg/m³
PM10
28.29ppb
O3
0.95ppb
SO2
8.58ppb
NO2
1.01ppm
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, 2026-02-11.
The best air quality in Lewes, East Sussex was observed at 02:00:00 on 2026-02-11.
The air quality in Lewes, East Sussex right now is Moderate, with an AQI of 52.
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 9.739 μg/m3.
Lewes, East Sussex currently has a PM10 concentration of 19.936 μg/m3.
The current carbon monoxide (CO) level in Lewes, East Sussex is 0.803 ppm.
The current sulfur dioxide (SO2) concentration in Lewes, East Sussex is 1.059 ppb.
Lewes, East Sussex currently has an ozone (O3) concentration of 35.733 ppm.
The current level of nitrogen dioxide (NO2) in Lewes, East Sussex is 4.32 ppb.
All Rights Reserved © Ambee Inc. 2025