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)
52
Moderate
Weymouth, Dorset
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
10.20 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.86 μg/m³
0
55
155
255
425
605+
22.35 ppb
0
55
71
86
201
201+
0.52 ppb
0
36
76
186
605
1005+
15.54 ppb
0
54
101
361
1250
2050+
0.72 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Weymouth, Dorset
Weymouth, Dorset
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AQI 52
Moderate
10.05μg/m³
PM2.5
12.60μg/m³
PM10
21.75ppb
O3
0.52ppb
SO2
13.18ppb
NO2
0.76ppm
CO
AQI 52
Moderate
9.97μg/m³
PM2.5
11.95μg/m³
PM10
20.96ppb
O3
0.45ppb
SO2
13.29ppb
NO2
0.76ppm
CO
AQI 52
Moderate
10.30μg/m³
PM2.5
12.47μg/m³
PM10
21.48ppb
O3
0.48ppb
SO2
15.41ppb
NO2
0.76ppm
CO
AQI 52
Moderate
10.23μg/m³
PM2.5
33.32μg/m³
PM10
22.33ppb
O3
0.49ppb
SO2
13.84ppb
NO2
0.76ppm
CO
AQI 52
Moderate
9.51μg/m³
PM2.5
12.07μg/m³
PM10
21.88ppb
O3
0.55ppb
SO2
11.78ppb
NO2
0.76ppm
CO
AQI 52
Moderate
9.92μg/m³
PM2.5
12.13μg/m³
PM10
21.77ppb
O3
0.56ppb
SO2
16.86ppb
NO2
0.76ppm
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 10:00:00 on 2026-11-12.
The best air quality in Weymouth, Dorset was recorded at 07:00:00 on 2026-11-12.
The real-time air quality index in Weymouth, Dorset is 52, currently categorized as Moderate.
The most common pollutant in Weymouth, Dorset is PM2.5.
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 10.097 μg/m3.
The current PM10 levels in Weymouth, Dorset are 12.275 μg/m3.
The current carbon monoxide (CO) level in Weymouth, Dorset is 0.76 ppm.
The current sulfur dioxide (SO2) levels in Weymouth, Dorset are 0.487 ppb.
The current ozone (O3) levels at Weymouth, Dorset is 20.784 ppm.
The current nitrogen dioxide (NO2) levels at Weymouth, Dorset is 14.216 ppb.
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