Air Quality in Swansea, United Kingdom

Windy
18.9°C · 70.3% humidity
18.9°
Feels 18.9°
42
Good
Air quality is satisfactory. Enjoy outdoor activities.
9 stations

Nearby Monitoring Stations

AQI Forecast
27 4pm
27
27
42 7pm
38
35
33 10pm
31
37
36 1am
35
55
55 4am
55
54
54 7am
34
34
34 10am
34
34
34 1pm
34
34
AD 728×90

Air Quality Index Trend

48h · 4 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.

70.3%
Humidity
46.6 km/h
Wind NE
1023.1 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
42
10.13 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Swansea?

Temperature & Precipitation

PM2.5 Trend

48h · 4 stations
PM2.510.13 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (9 stations within 25 km)
10.13
Median
9.76
Average
7.2
Low
15.0
High
PM2.5 µg/m³ · Model: 6.25 · Bias: -3.9

What is the 7-day forecast for Swansea?

05-29
18.9° 12.0°
5.5 mm
05-30
20.3° 13.0°
0.19 mm
05-31
15.7° 10.9°
1.12 mm
06-01
19.6° 10.1°
1.13 mm
06-02
17.0° 10.2°
12.38 mm
06-03
18.4° 10.9°
1.19 mm
06-04
17.8° 7.8°
8.0 mm
Both models agree Avg diff: 2.7°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
59
Swansea Roadside, United Kingdom
1.4 km PM2.5: 15.9 µg/m³
35
Swansea Roadside, United Kingdom
1.4 km PM2.5: 8.4 µg/m³
47
Swansea Roadside, United Kingdom
1.4 km PM2.5: 11.3 µg/m³
14
Swansea Roadside, United Kingdom
1.4 km PM2.5: 3.4 µg/m³
35
Swansea Morriston Roadside, United Kingdom
4.8 km PM2.5: 8.4 µg/m³
147
Swansea Morriston Roadside, United Kingdom
4.8 km PM2.5: 54.2 µg/m³
10
Swansea Morriston Roadside, United Kingdom
4.8 km PM2.5: 2.4 µg/m³
15
Port Talbot Little Warren, United Kingdom
10.6 km PM2.5: 3.6 µg/m³

What cities are near Swansea?

39 Clydach 40 Briton Ferry 42 Gorseinon 40 Neath 42 Llanelli 41 Ammanford 40 Maesteg 40 Porthcawl 40 Bridgend 33 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 2026-05-29T18:44 UTC.