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Carmarthen (Wales) (GB)

Air Quality Trend (last 7 days)

Good (0-50)
Moderate (51-100)
Unhealthy for Sensitive Groups (101-150)
Unhealthy (151-200)
Very Unhealthy (201-300)
Hazardous (300+)

Weather - 48h MET Norway

Nubes dispersas
6°C
Nubes dispersas
Humidity
80.8%
Wind
4 m/s
Pressure
1015.4 hPa
Direction
279°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
4° / 10°
Precip.
7.3mm
Max wind
14.7 m/s

Hourly Forecast

03.04
Now
Weather
03.04
23:00
Weather
04.04
00:00
Weather
04.04
01:00
Weather
04.04
02:00
Weather
04.04
03:00
Weather
04.04
04:00
Weather
04.04
05:00
Weather
04.04
06:00
Weather
0.4
04.04
07:00
Weather
0.3
7
04.04
08:00
Weather
10°
0.1
10
04.04
09:00
Weather
10°
0.3
11
04.04
10:00
Weather
10°
0.4
11
04.04
11:00
Weather
10°
0.6
12
04.04
12:00
Weather
10°
0.9
13
04.04
13:00
Weather
10°
0.4
13
04.04
14:00
Weather
10°
0.5
13
04.04
15:00
Weather
10°
0.4
13
04.04
16:00
Weather
10°
0.8
13
04.04
17:00
Weather
0.9
13
04.04
18:00
Weather
10°
0.5
13
04.04
19:00
Weather
10°
0.8
15
04.04
20:00
Weather
13
04.04
21:00
Weather
12

Temperature

10°C
4°C
22:00
6°C
23:00
6°C
00:00
5°C
01:00
4°C
02:00
4°C
03:00
5°C
04:00
6°C
05:00
7°C
06:00
7°C
07:00
8°C
08:00
10°C
09:00
10°C
10:00
10°C
11:00
10°C
12:00
10°C
13:00
10°C
14:00
10°C
15:00
10°C
16:00
10°C
17:00
9°C
18:00
10°C
19:00
10°C
20:00
9°C
21:00
8°C
22:00 09:00 21:00

Precipitation

0.9mm
0mm
06:00
0.4mm
07:00
0.3mm
08:00
0.1mm
09:00
0.3mm
10:00
0.4mm
11:00
0.6mm
12:00
0.9mm
13:00
0.4mm
14:00
0.5mm
15:00
0.4mm
16:00
0.8mm
17:00
0.9mm
18:00
0.5mm
19:00
0.8mm
22:00 09:00 21:00

Wind

14.7m/s
0m/s
22:00
4.2 m/s
23:00
3.7 m/s
00:00
2.8 m/s
01:00
1.9 m/s
02:00
1.4 m/s
03:00
1.7 m/s
04:00
2.8 m/s
05:00
3.5 m/s
06:00
4.9 m/s
07:00
6.7 m/s
08:00
9.5 m/s
09:00
10.5 m/s
10:00
11.2 m/s
11:00
12.2 m/s
12:00
13.2 m/s
13:00
13 m/s
14:00
12.7 m/s
15:00
13 m/s
16:00
13.1 m/s
17:00
12.5 m/s
18:00
13.4 m/s
19:00
14.7 m/s
20:00
13.4 m/s
21:00
12.2 m/s
22:00 09:00 21:00

Radiation

0.117 uSv
36.5 km
14.6%

Measurement time: 2026-04-03 20:00

source: remap_europe

We display the worst measurements from all stations in the area. This approach provides a more cautious assessment of air quality, accounting for local pollution sources.

AQI
81.2 km
82
27.3%

Measurement time: 2026-04-03 22:00

Calculated from PM2.5/PM10

O3
78 km
96.42 µg/m3
60.3%

Measurement time: 2026-04-03 23:25

source: OpenWeatherMap

PM2.5
81.2 km
27 µg/m3
32.1%

Measurement time: 2026-04-03 22:00

source: Aqicn

PM10
81.2 km
23 µg/m3
16.4%

Measurement time: 2026-04-03 22:00

source: Aqicn

NO2
81.2 km
4.5 µg/m3
2.3%

Measurement time: 2026-04-03 22:00

source: Aqicn

CO
78 km
0.12936 mg/m3
0.9%

Measurement time: 2026-04-03 23:25

source: OpenWeatherMap

SO2
78 km
0.81 µg/m3
0.2%

Measurement time: 2026-04-03 23:25

source: OpenWeatherMap

Info


Region: Wales
Latitude: 51.85552
Longitude: -4.30535


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About Air Quality in Carmarthen

Air quality in Carmarthen is monitored in real-time by sensors and measurement stations. On this page you'll find current data on major air pollutants including particulate matter PM2.5 and PM10, nitrogen dioxide (NO2), ozone (O3), and radiation levels.

Common Pollutants in Carmarthen

  • PM2.5 - fine particulate matter up to 2.5 micrometers, particularly harmful to health
  • PM10 - particulate matter up to 10 micrometers from traffic and industry
  • NO2 - nitrogen dioxide mainly emitted by vehicles
  • O3 - tropospheric ozone formed in photochemical reactions

When is Air Quality Best in Carmarthen?

Generally, the best air quality occurs:

  • Early morning (5:00-7:00 AM) before rush hour traffic
  • After rainfall which cleanses the atmosphere
  • During strong winds that disperse pollutants
  • In summer months when heating systems are less used

Tips for Runners in Carmarthen

If you're planning outdoor activities in Carmarthen, always check the current AQI value. When AQI exceeds 100, consider moving your workout indoors or shortening the distance. People with respiratory issues, children, and seniors should be especially cautious during elevated pollution levels. Choose routes away from busy streets and industrial areas.