Air Quality in Belfast, United Kingdom

Partly Cloudy
15.9°C · 69.3% humidity
15.9°
Feels 15.9°
34
Good
Air quality is satisfactory. Enjoy outdoor activities.
4 stations

Nearby Monitoring Stations

AQI Forecast
25 3pm
25
25
34 6pm
32
31
30 9pm
29
28
28 12am
28
25
25 3am
25
25
25 6am
25
25
25 9am
25
25
25 12pm
25
25
AD 728×90

Air Quality Index Trend

47h · 1 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.

69.3%
Humidity
24.9 km/h
Wind E
1026.0 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
34
8.22 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Belfast?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station
PM2.58.22 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX4.4
Moderate
AD 300×250
Station readings (4 stations within 25 km)
8.22
Median
7.08
Average
5.0
Low
10.1
High
PM2.5 µg/m³ · Model: 5.9 · Bias: -2.3

What is the 7-day forecast for Belfast?

05-29
15.9° 9.5°
5.56 mm
05-30
18.0° 9.3°
0.13 mm
05-31
9.9° 8.0°
0.19 mm
06-01
15.5° 8.9°
2.12 mm
06-02
13.4° 9.6°
2.0 mm
06-03
17.5° 9.8°
0.13 mm
06-04
21.4° 13.0°
1.13 mm
Both models agree Avg diff: 3.0°C

Where are air quality stations near Belfast?

17
Belfast Centre, United Kingdom
0.4 km PM2.5: 4.1 µg/m³
17
Belfast Centre, United Kingdom
0.4 km PM2.5: 4.1 µg/m³
68
Belfast Stockman's Lane, United Kingdom
4.2 km PM2.5: 20.2 µg/m³
15
Belfast Stockman's Lane, United Kingdom
4.2 km PM2.5: 3.6 µg/m³
61
North Down Holywood A2, United Kingdom
7.5 km PM2.5: 16.9 µg/m³
85
North Down Holywood A2, United Kingdom
7.5 km PM2.5: 28.3 µg/m³
16
North Down Holywood A2, United Kingdom
7.5 km PM2.5: 3.8 µg/m³
103
North Down Holywood A2, United Kingdom
7.5 km PM2.5: 36.3 µg/m³
21
Lisburn Dunmurry Seymour Hill, United Kingdom
8.0 km PM2.5: 5.0 µg/m³
151
Lisburn Dunmurry Seymour Hill, United Kingdom
8.0 km PM2.5: 55.5 µg/m³

What cities are near Belfast?

32 Castlereagh 28 Newtownabbey 24 Lisburn 29 Newtownards 28 Carrickfergus 29 Bangor 27 Antrim 28 Larne 28 Craigavon 32 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 2026-05-29T17:00 UTC.