What is the air quality in Swansea today?

The current Air Quality Index (AQI) in Swansea is 18 (Good). PM2.5 concentration is 4.21 µg/m³.

What is the temperature in Swansea right now?

The current temperature in Swansea is 15.7°C (feels like 15.7°C). Humidity is 42.3% and wind speed is 45.3 km/h.

Is it safe to go outside in Swansea?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.7 (Low).

Air Quality in Swansea, United Kingdom

Windy

15.7°C · 42.3% humidity

15.7°

Feels 15.7°

Good

Air quality is satisfactory. Enjoy outdoor activities.

3 stations

Nearby Monitoring Stations

AQI Forecast Calibrated

39 12am

18 3am

31 6am

36 9am

38 12pm

39 3pm

39 6pm

39 9pm

Station readings

CAMS model adj +14

Air Quality Index Trend

4h · 1 stn

View full history →

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.

42.3%

Humidity

45.3 km/h

Wind NE

1013.9 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

4.21 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Swansea?

Temperature & Precipitation

PM2.5 Trend

4h · 1 station

PM2.54.21 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

Station readings (3 stations within 25 km)

4.21

Median

7.43

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

Swansea Port Tennant Roadside

1.1 km PM2.5: 11.0 µg/m³

Swansea Roadside, United Kingdom

1.4 km PM2.5: 18.3 µg/m³

Swansea Roadside, United Kingdom

1.4 km PM2.5: 14.0 µg/m³

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

Swansea Morriston Roadside, United Kingdom

4.8 km PM2.5: 6.5 µg/m³

Swansea Morriston Roadside, United Kingdom

4.8 km PM2.5: 16.9 µg/m³

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?

23 Clydach 34 Briton Ferry 22 Gorseinon 32 Neath 17 Llanelli 17 Ammanford 36 Maesteg 35 Porthcawl 38 Bridgend 34 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 2026-07-22T02:17 UTC.