Air Quality in Swansea, United Kingdom

Partly Cloudy
14.5°C · 50.9% humidity
14.5°
Feels 14.5°
18
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
37 1am
37
37
18 4am
23
27
30 7am
32
33
34 10am
35
36
36 1pm
36
37
37 4pm
37
37
37 7pm
37
37
37 10pm
37
37
Station readings
42
38
38
30
CAMS model adj +12
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
AD 728×90

Air Quality Index Trend

5h · 1 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.

50.9%
Humidity
37.2 km/h
Wind NE
1013.3 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
18
4.17 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Swansea?

Temperature & Precipitation

PM2.5 Trend

5h · 1 station
PM2.54.17 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (5 stations within 25 km)
4.17
Median
6.72
Average
4.1
Low
9.1
High
PM2.5 µg/m³ · Model: 6.0 · Bias: +1.8

What is the 7-day forecast for Swansea?

07-22
20.1° 14.5°
4.31 mm
07-23
18.4° 12.5°
2.44 mm
07-24
18.3° 13.8°
8.06 mm
07-25
19.7° 8.2°
0.69 mm
07-26
21.7° 11.1°
0.69 mm
07-27
18.6° 13.8°
7.06 mm
07-28
23.8° 13.7°
0.13 mm
Both models agree Avg diff: 2.9°C

Where are air quality stations near Swansea?

–
Swansea Morfa Road NOX
0.7 km
46
Swansea Port Tennant Roadside
1.1 km PM2.5: 11.0 µg/m³
20
Swansea Roadside, United Kingdom
1.4 km PM2.5: 4.8 µg/m³
55
Swansea Roadside, United Kingdom
1.4 km PM2.5: 14.0 µg/m³
89
Swansea Roadside, United Kingdom
1.4 km PM2.5: 30.2 µg/m³
154
Swansea Roadside, United Kingdom
1.4 km PM2.5: 61.3 µg/m³
27
Swansea Morriston Roadside, United Kingdom
4.8 km PM2.5: 6.5 µg/m³
28
Swansea Morriston Roadside, United Kingdom
4.8 km PM2.5: 6.7 µg/m³
26
Swansea Morriston Roadside, United Kingdom
4.8 km PM2.5: 6.2 µg/m³
107
Port Talbot Little Warren, United Kingdom
10.6 km PM2.5: 37.9 µg/m³

What cities are near Swansea?

22 Clydach 31 Briton Ferry 20 Gorseinon 29 Neath 17 Llanelli 17 Ammanford 33 Maesteg 32 Porthcawl 35 Bridgend 35 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 2026-07-22T03:24 UTC.