Air Quality in Merthyr Tydfil, United Kingdom

Windy
16.9°C · 74.6% humidity
16.9°
Feels 16.9°
15
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
55 4pm
55
55
15 7pm
26
34
40 10pm
44
47
50 1am
51
52
53 4am
54
54
54 7am
54
55
55 10am
55
62
62 1pm
55
55
Station readings 27h ago
AQI 52
PM2.5 12.6 µg/m³ · 27h ago
CAMS model adj +28
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
34
34
27
27
AD 728×90

Air Quality Index Trend

4h · 1 stn

Merthyr Tydfil'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.

74.6%
Humidity
62.6 km/h
Wind ENE
1023.3 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
15
3.6 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Merthyr Tydfil?

Temperature & Precipitation

PM2.5 Trend

4h · 1 station
PM2.53.6 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (2 stations within 25 km)
3.6
Median
3.6
Average
3.4
Low
3.8
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +2.7

What is the 7-day forecast for Merthyr Tydfil?

05-29
16.9° 10.4°
4.0 mm
05-30
20.0° 11.7°
0.56 mm
05-31
15.5° 9.3°
0.62 mm
06-01
17.2° 9.0°
0.81 mm
06-02
14.5° 9.1°
13.19 mm
06-03
16.5° 9.3°
0.81 mm
06-04
22.1° 6.8°
3.5 mm
Both models agree Avg diff: 2.9°C

Where are air quality stations near Merthyr Tydfil?

–
Rhondda Mountain Ash
7.1 km
–
Rhondda Pontypridd Gelliwastad Rd
16.1 km
–
Hafod-yr-ynys Hill Roadside
18.4 km
–
Caerphilly Islwyn Road Wattsville
21.6 km
–
Nantgarw Road
21.7 km
8
Caerphilly White Street, United Kingdom
22.3 km PM2.5: 1.9 µg/m³
13
Caerphilly White Street, United Kingdom
22.3 km PM2.5: 3.1 µg/m³

What cities are near Merthyr Tydfil?

15 Aberdare 22 Rhondda 15 Ebbw Vale 22 Gelligaer 23 Blackwood 28 Tonypandy 23 Pontypridd 15 Caerphilly 22 Pontypool 24 Risca
Get AQI alerts for Merthyr Tydfil

Notify me when air quality reaches:

Free · No account · Unsubscribe any time

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-29T18:45 UTC.