Air Quality in Belfast, United Kingdom

Rain
11.8°C · 97.2% humidity
11.8°
Feels 11.8°
30
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
11 2am
13
13
30 5am
25
22
19 8am
17
16
15 11am
15
14
14 2pm
14
20
13 5pm
13
13
13 8pm
11
11
11 11pm
10
10
CAMS model adj -14
25
27
27
27
27
27
27
27
27
27
27
27
27
27
34
27
27
27
27
25
25
25
24
24
AD 728×90

Air Quality Index Trend

44h · 4 stn

Belfast'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.

97.2%
Humidity
60.6 km/h
Wind W
1005.4 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
30
7.22 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Belfast?

Temperature & Precipitation

PM2.5 Trend

44h · 4 stations
PM2.57.22 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (3 stations within 25 km)
7.22
Median
8.3
Average
7.2
Low
9.1
High
PM2.5 µg/m³ · Model: 6.0 · Bias: -1.2

What is the 7-day forecast for Belfast?

08-03
18.4° 11.5°
3.13 mm
08-04
17.4° 9.1°
3.88 mm
08-05
15.3° 9.6°
2.69 mm
08-06
17.5° 12.6°
0.38 mm
08-07
15.4° 9.4°
0.69 mm
08-08
15.0° 8.9°
0.69 mm
08-09
14.1° 8.7°
3.81 mm
Both models agree Avg diff: 2.5°C

Where are air quality stations near Belfast?

25
Belfast Centre, United Kingdom
0.4 km PM2.5: 6.0 µg/m³
21
Belfast Centre, United Kingdom
0.4 km PM2.5: 5.0 µg/m³
20
Belfast Stockman's Lane, United Kingdom
4.2 km PM2.5: 4.8 µg/m³
14
Belfast Stockman's Lane, United Kingdom
4.2 km PM2.5: 3.4 µg/m³
26
North Down Holywood A2, United Kingdom
7.5 km PM2.5: 6.2 µg/m³
57
North Down Holywood A2, United Kingdom
7.5 km PM2.5: 15.0 µg/m³
19
North Down Holywood A2, United Kingdom
7.5 km PM2.5: 4.6 µg/m³
13
North Down Holywood A2, United Kingdom
7.5 km PM2.5: 3.1 µg/m³
34
North Down Holywood A2, United Kingdom
7.5 km PM2.5: 8.2 µg/m³
20
Lisburn Dunmurry Seymour Hill, United Kingdom
8.0 km PM2.5: 4.8 µg/m³

What cities are near Belfast?

33 Castlereagh 33 Newtownabbey 35 Lisburn 34 Newtownards 34 Carrickfergus 33 Bangor 31 Antrim 25 Larne 23 Craigavon 16 Banbridge
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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 2026-08-08T04:48 UTC.