What is the air quality in Belfast today?

The current Air Quality Index (AQI) in Belfast is 30 (Good). PM2.5 concentration is 7.2 µg/m³.

What is the temperature in Belfast right now?

The current temperature in Belfast is 9.0°C (feels like 3.4°C). Humidity is 74.6% and wind speed is 66.2 km/h.

Is it safe to go outside in Belfast?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Belfast, United Kingdom

Windy

9.0°C · 74.6% humidity

9.0°

Feels 3.4°

Good

Air quality is satisfactory. Enjoy outdoor activities.

2 stations

Nearby Monitoring Stations

AQI Forecast

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Station readings 5h ago

AQI 1

PM2.5 0.2 µg/m³ · 5h ago

Air Quality Index Trend

40h · 1 stn

View full history →

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.

74.6%

Humidity

66.2 km/h

Wind SW

1017.2 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

7.2 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Belfast?

Temperature & Precipitation

PM2.5 Trend

40h · 1 station

PM2.57.2 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (2 stations within 25 km)

7.2

Median

6.5

Average

5.8

Low

7.2

High

PM2.5 µg/m³ · Model: 5.8 · Bias: -1.4

What is the 7-day forecast for Belfast?

10-21

9.0° 6.8°

0.75 mm

10-22

16.4° 5.3°

5.12 mm

10-23

8.5° 6.8°

2.62 mm

10-24

13.5° 5.0°

0.06 mm

10-25

9.0° 5.0°

7.19 mm

10-26

7.8° 5.2°

2.5 mm

10-27

10.9° 4.0°

1.56 mm

Both models agree Avg diff: 3.7°C

Where are air quality stations near Belfast?

Belfast Centre, United Kingdom

0.4 km PM2.5: 5.8 µg/m³

Belfast Centre, United Kingdom

0.4 km PM2.5: 7.2 µg/m³

Belfast Stockman's Lane, United Kingdom

4.2 km PM2.5: 6.0 µg/m³

Belfast Stockman's Lane, United Kingdom

4.2 km PM2.5: 5.5 µg/m³

North Down Holywood A2, United Kingdom

7.5 km PM2.5: 5.8 µg/m³

North Down Holywood A2, United Kingdom

7.5 km PM2.5: 9.1 µg/m³

North Down Holywood A2, United Kingdom

7.5 km PM2.5: 5.8 µg/m³

Lisburn Dunmurry Seymour Hill, United Kingdom

8.0 km PM2.5: 5.8 µg/m³

Lisburn Dunmurry Seymour Hill, United Kingdom

8.0 km PM2.5: 5.0 µg/m³

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ConligWX

16.8 km 7.9°C 91.0% RH PM2.5: 0.0 µg/m³ PM10: 0.0 µg/m³

What cities are near Belfast?

29 Castlereagh 26 Newtownabbey 26 Lisburn 26 Newtownards 25 Carrickfergus 26 Bangor 26 Antrim 24 Larne 20 Craigavon 15 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 2026-10-21T14:04 UTC.