Air Quality in Swansea, United Kingdom

Partly Cloudy
13.8°C · 66.9% humidity
13.8°
Feels 13.8°
34
Good
Air quality is satisfactory. Enjoy outdoor activities.
8 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
40 5pm
37
30
34 8pm
35
36
37 11pm
38
38
38 2am
39
39
39 5am
39
32
32 8am
39
39
39 11am
39
39
39 2pm
39
39
Station readings
40
37
30
30
CAMS model adj +5
34
34
34
34
34
34
34
34
34
34
34
34
34
34
27
27
34
34
34
34
34
34
34
34
AD 728×90

Air Quality Index Trend

47h · 3 stn

Swansea's air quality is shaped by traffic emissions and residential heating. Pollution levels tend to peak during winter months when cold air traps emissions close to ground level.

66.9%
Humidity
35.2 km/h
Wind WNW
1029.6 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
34
8.18 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Swansea?

Temperature & Precipitation

PM2.5 Trend

47h · 3 stations
PM2.58.18 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (8 stations within 25 km)
8.18
Median
7.33
Average
6.0
Low
9.5
High
PM2.5 µg/m³ · Model: 7.1 · Bias: -1.1

What is the 7-day forecast for Swansea?

09-05
13.8° 8.6°
0.75 mm
09-06
18.0° 10.0°
0.75 mm
09-07
14.3° 11.2°
16.5 mm
09-08
22.0° 7.0°
0.06 mm
09-09
18.9° 8.0°
1.81 mm
09-10
16.9° 12.8°
1.81 mm
09-11
15.5° 10.7°
0.38 mm
Both models agree Avg diff: 3.5°C

Where are air quality stations near Swansea?

–
Swansea Morfa Road NOX
0.7 km
38
Swansea Port Tennant Roadside
1.1 km PM2.5: 9.0 µg/m³
30
Swansea Roadside, United Kingdom
1.4 km PM2.5: 7.2 µg/m³
31
Swansea Roadside, United Kingdom
1.4 km PM2.5: 7.4 µg/m³
15
Swansea Morriston Roadside, United Kingdom
4.8 km PM2.5: 3.6 µg/m³
34
Swansea Morriston Roadside, United Kingdom
4.8 km PM2.5: 8.2 µg/m³
25
Port Talbot Little Warren, United Kingdom
10.6 km PM2.5: 6.0 µg/m³
25
Port Talbot Little Warren, United Kingdom
10.6 km PM2.5: 6.0 µg/m³
30
Port Talbot Margam, United Kingdom
12.6 km PM2.5: 7.2 µg/m³
38
Port Talbot Dyffryn School, United Kingdom
14.3 km PM2.5: 9.1 µg/m³

What cities are near Swansea?

28 Clydach 29 Briton Ferry 31 Gorseinon 30 Neath 31 Llanelli 31 Ammanford 30 Maesteg 31 Porthcawl 28 Bridgend 28 Coity
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-09-05T19:31 UTC.