Stay updated with real-time air quality in Weymouth, Dorset 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)
25
Good
Weymouth, Dorset
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.06 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.15 μg/m³
0
55
155
255
425
605+
26.95 ppb
0
55
71
86
201
201+
0.38 ppb
0
36
76
186
605
1005+
1.38 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Weymouth, Dorset
Weymouth, Dorset
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AQI 28
Good
4.93μg/m³
PM2.5
14.60μg/m³
PM10
30.00ppb
O3
0.38ppb
SO2
4.38ppb
NO2
0.07ppm
CO
AQI 28
Good
3.18μg/m³
PM2.5
9.33μg/m³
PM10
29.70ppb
O3
0.38ppb
SO2
3.91ppb
NO2
0.08ppm
CO
AQI 28
Good
5.09μg/m³
PM2.5
10.59μg/m³
PM10
29.98ppb
O3
0.39ppb
SO2
3.54ppb
NO2
0.07ppm
CO
AQI 29
Good
5.14μg/m³
PM2.5
12.16μg/m³
PM10
31.02ppb
O3
0.38ppb
SO2
3.21ppb
NO2
0.07ppm
CO
AQI 27
Good
3.09μg/m³
PM2.5
5.32μg/m³
PM10
28.64ppb
O3
0.38ppb
SO2
3.42ppb
NO2
0.07ppm
CO
AQI 26
Good
3.24μg/m³
PM2.5
6.21μg/m³
PM10
27.91ppb
O3
0.38ppb
SO2
2.92ppb
NO2
0.07ppm
CO
Air quality measurements for Dorset, UK meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Weymouth, Dorset is updated on an hourly basis.
The worst air quality in Weymouth, Dorset was recorded at 08:00:00 on 2025-09-16.
The best air quality in Weymouth, Dorset was recorded at 04:00:00 on 2025-09-17.
The real-time air quality index in Weymouth, Dorset is 28, currently categorized as Good.
The most common pollutant in Weymouth, Dorset is O3.
If the air quality in Weymouth, Dorset is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Weymouth, Dorset at present are 4.876 μg/m3.
The current PM10 levels in Weymouth, Dorset are 17.659 μg/m3.
The current carbon monoxide (CO) level in Weymouth, Dorset is 0.074 ppm.
The current sulfur dioxide (SO2) levels in Weymouth, Dorset are 0.382 ppb.
The current ozone (O3) levels at Weymouth, Dorset is 29.792 ppm.
The current nitrogen dioxide (NO2) levels at Weymouth, Dorset is 4.251 ppb.
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