Air Quality in Caerphilly, United Kingdom

Partly Cloudy
15.6°C · 53.0% humidity
15.6°
Feels 15.6°
61
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
9 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
15 1pm
18
19
61 4pm
51
43
38 7pm
54
51
49 10pm
48
47
26 1am
45
45
45 4am
24
24
24 7am
24
24
24 10am
24
24
Station readings
15
18
19
19
CAMS model adj -10
27
27
27
34
34
34
34
54
54
54
54
54
34
54
54
54
34
34
34
34
34
34
34
34
AD 728×90

Air Quality Index Trend

47h · 3 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. Current PM2.5 concentration in Caerphilly is 1.1× the WHO 24-hour guideline of 15 µg/m³.

53.0%
Humidity
9.4 km/h
Wind W
1029.0 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
61
17.0 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Caerphilly?

Temperature & Precipitation

PM2.5 Trend

47h · 3 stations
PM2.517.0 µg/m³ ×1.1 WHO
Moderate
PM1013.7 µg/m³
Good
UV INDEX4.4
Moderate
AD 300×250
Station readings (9 stations within 25 km)
17.0
Median
9.18
Average
3.8
Low
27.3
High
PM2.5 µg/m³ · Model: 7.1 · Bias: -9.9

What is the 7-day forecast for Caerphilly?

09-05
15.6° 10.1°
0.38 mm
09-06
20.1° 12.4°
0.13 mm
09-07
15.0° 11.6°
12.31 mm
09-08
22.4° 7.8°
09-09
19.0° 8.9°
0.81 mm
09-10
19.4° 12.7°
0.81 mm
09-11
16.0° 11.6°
0.25 mm
Both models agree Avg diff: 2.9°C

Where are air quality stations near Caerphilly?

19
Caerphilly White Street, United Kingdom
0.1 km PM2.5: 4.6 µg/m³
19
Caerphilly White Street, United Kingdom
0.1 km PM2.5: 4.6 µg/m³
–
Nantgarw Road
0.9 km
–
Rhondda Pontypridd Gelliwastad Rd
9.1 km
19
Rhondda Glyncoch Garth Avenue, United Kingdom
9.4 km PM2.5: 4.6 µg/m³
20
Rhondda Glyncoch Garth Avenue, United Kingdom
9.4 km PM2.5: 4.8 µg/m³
14
Rhondda Glyncoch Garth Avenue, United Kingdom
9.4 km PM2.5: 3.4 µg/m³
15
Rhondda Glyncoch Garth Avenue, United Kingdom
9.4 km PM2.5: 3.6 µg/m³
19
Rhondda Glyncoch Garth Avenue, United Kingdom
9.4 km PM2.5: 4.6 µg/m³
27
Cardiff Newport Road, United Kingdom
10.3 km PM2.5: 6.5 µg/m³

What cities are near Caerphilly?

41 Risca 38 Pontypridd 44 Gelligaer 45 Blackwood 28 Cardiff 24 Newport 31 Penarth 30 Cwmbran 38 Tonypandy 36 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 2026-09-05T15:47 UTC.