Air Quality in Cardiff, United Kingdom

Rain
17.4°C · 63.6% humidity
17.4°
Feels 17.4°
30
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
25 12am
26
17
30 3am
27
25
30 6am
29
28
27 9am
20
20
20 12pm
19
19
19 3pm
19
19
19 6pm
19
19
19 9pm
19
26
Station readings
25
18
17
CAMS model adj -8
34
34
34
27
27
27
34
34
34
34
27
27
27
27
27
27
27
27
27
27
27
27
27
34
AD 728×90

Air Quality Index Trend

32h · 2 stn

Cardiff'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.

63.6%
Humidity
92.2 km/h
Wind W
1010.6 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
30
7.19 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Cardiff?

Temperature & Precipitation

PM2.5 Trend

32h · 2 stations
PM2.57.19 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (5 stations within 25 km)
7.19
Median
4.24
Average
2.2
Low
7.2
High
PM2.5 µg/m³ · Model: 7.0 · Bias: -0.2

What is the 7-day forecast for Cardiff?

08-03
31.9° 15.3°
4.63 mm
08-04
22.4° 12.5°
08-05
22.3° 13.2°
08-06
20.8° 13.9°
1.69 mm
08-07
23.8° 13.2°
2.5 mm
08-08
18.5° 12.3°
0.62 mm
08-09
18.7° 8.7°
Both models agree Avg diff: 2.9°C

Where are air quality stations near Cardiff?

24
Cardiff Centre, United Kingdom
0.3 km PM2.5: 5.8 µg/m³
24
Cardiff Centre, United Kingdom
0.3 km PM2.5: 5.8 µg/m³
17
Cardiff Centre, United Kingdom
0.3 km PM2.5: 4.1 µg/m³
24
Cardiff Newport Road, United Kingdom
2.3 km PM2.5: 5.8 µg/m³
28
Cardiff Newport Road, United Kingdom
2.3 km PM2.5: 6.7 µg/m³
24
Cardiff Newport Road, United Kingdom
2.3 km PM2.5: 5.8 µg/m³
17
Cardiff Newport Road, United Kingdom
2.3 km PM2.5: 4.1 µg/m³
30
Cardiff Newport Road, United Kingdom
2.3 km PM2.5: 7.2 µg/m³
14
Caerphilly White Street, United Kingdom
10.8 km PM2.5: 3.4 µg/m³
14
Caerphilly White Street, United Kingdom
10.8 km PM2.5: 3.4 µg/m³

What cities are near Cardiff?

28 Penarth 9 Caerphilly 25 Barry 15 Risca 10 Newport 10 Pontypridd 30 Weston-super-Mare 13 Blackwood 12 Gelligaer 12 Cwmbran
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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 2026-08-08T02:05 UTC.