Air Quality in Caerphilly, United Kingdom

Windy
18.3°C · 70.8% humidity
18.3°
Feels 18.3°
16
Good
Air quality is satisfactory. Enjoy outdoor activities.
6 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
53 3pm
53
53
16 6pm
26
34
39 9pm
43
46
48 12am
49
50
51 3am
52
52
52 6am
53
53
53 9am
53
53
60 12pm
60
53
Station readings 26h ago
AQI 52
PM2.5 12.6 µg/m³ · 26h ago
CAMS model adj +26
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
34
34
27
AD 728×90

Air Quality Index Trend

4h · 1 stn

Caerphilly'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.

70.8%
Humidity
71.9 km/h
Wind ENE
1022.9 hPa
Pressure
6.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
16
3.8 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Caerphilly?

Temperature & Precipitation

PM2.5 Trend

4h · 1 station
PM2.53.8 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX6.9
High
AD 300×250
Station readings (6 stations within 25 km)
3.8
Median
9.17
Average
3.8
Low
11.0
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +2.5

What is the 7-day forecast for Caerphilly?

05-29
18.3° 12.3°
3.5 mm
05-30
19.5° 12.9°
2.44 mm
05-31
18.1° 11.8°
0.81 mm
06-01
18.7° 11.5°
0.44 mm
06-02
16.6° 10.8°
14.0 mm
06-03
18.0° 12.0°
0.5 mm
06-04
22.2° 8.4°
5.69 mm
Both models agree Avg diff: 2.7°C

Where are air quality stations near Caerphilly?

13
Caerphilly White Street, United Kingdom
0.1 km PM2.5: 3.1 µg/m³
51
Caerphilly White Street, United Kingdom
0.1 km PM2.5: 12.1 µg/m³
–
Nantgarw Road
0.9 km
–
Caerphilly Islwyn Road Wattsville
6.7 km
–
Rhondda Pontypridd Gelliwastad Rd
9.1 km
20
Cardiff Newport Road, United Kingdom
10.3 km PM2.5: 4.8 µg/m³
156
Cardiff Newport Road, United Kingdom
10.3 km PM2.5: 65.2 µg/m³
52
Cardiff Centre, United Kingdom
10.7 km PM2.5: 12.6 µg/m³
–
Hafod-yr-ynys Hill Roadside
13.1 km
–
Rhondda Mountain Ash
16.5 km

What cities are near Caerphilly?

33 Risca 31 Pontypridd 31 Gelligaer 31 Blackwood 43 Cardiff 38 Newport 42 Penarth 36 Cwmbran 28 Tonypandy 30 Pontypool
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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 2026-05-29T17:00 UTC.