What is the air quality in Carmarthen today?

The current Air Quality Index (AQI) in Carmarthen is 36 (Good). PM2.5 concentration is 8.7 µg/m³.

What is the temperature in Carmarthen right now?

The current temperature in Carmarthen is 11.3°C (feels like 11.3°C). Humidity is 59.1% and wind speed is 29.6 km/h.

Is it safe to go outside in Carmarthen?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Carmarthen, United Kingdom

Partly Cloudy

11.3°C · 59.1% humidity

11.3°

Feels 11.3°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

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Station readings 16h ago

AQI 34

PM2.5 8.2 µg/m³ · 16h ago

Air Quality Index Trend

4h · 1 stn

View full history →

Carmarthen'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.

59.1%

Humidity

29.6 km/h

Wind NNW

1020.5 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

8.7 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Carmarthen?

Temperature & Precipitation

PM2.5 Trend

4h · 1 station

PM2.58.7 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

What is the 7-day forecast for Carmarthen?

10-21

11.3° 3.6°

10-22

16.3° 6.9°

2.69 mm

10-23

10.7° 8.1°

7.06 mm

10-24

12.5° 8.3°

10-25

12.0° 5.2°

19.56 mm

10-26

9.0° 5.7°

3.25 mm

10-27

15.5° 3.1°

7.75 mm

Both models agree Avg diff: 3.5°C

Where are air quality stations near Carmarthen?

Swansea Roadside, United Kingdom

34.9 km PM2.5: 7.2 µg/m³

Swansea Roadside, United Kingdom

34.9 km PM2.5: 7.2 µg/m³

Swansea Roadside, United Kingdom

34.9 km PM2.5: 7.2 µg/m³

What cities are near Carmarthen?

35 Llanelli 36 Ammanford 35 Gorseinon 40 Clydach 30 Swansea 38 Neath 38 Briton Ferry 34 Maesteg 36 Porthcawl 17 Aberdare

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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 2026-10-21T15:00 UTC.