What is the air quality in Letterkenny today?

The current Air Quality Index (AQI) in Letterkenny is 26 (Good). PM2.5 concentration is 6.2 µg/m³.

What is the temperature in Letterkenny right now?

The current temperature in Letterkenny is 8.3°C (feels like 4.9°C). Humidity is 90.2% and wind speed is 23.0 km/h.

Is it safe to go outside in Letterkenny?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.7 (Low).

Air Quality in Letterkenny, Ireland

Overcast

8.3°C · 90.2% humidity

8.3°

Feels 4.9°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast Calibrated

16 2am

26 5am

21 8am

18 11am

17 2pm

17 5pm

17 8pm

17 11pm

Station readings 16h ago

AQI 15

PM2.5 3.6 µg/m³ · 16h ago

CAMS model adj -8

Air Quality Index Trend

5h · 1 stn

View full history →

Letterkenny'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.

90.2%

Humidity

23.0 km/h

Wind SSE

1016.6 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

6.2 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Letterkenny?

Temperature & Precipitation

PM2.5 Trend

5h · 1 station

PM2.56.2 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

Station readings (1 station within 25 km)

6.2

Median

6.2

Average

6.2

Low

6.2

High

PM2.5 µg/m³ · Model: 5.8 · Bias: -0.4

What is the 7-day forecast for Letterkenny?

06-09

17.5° 7.0°

2.25 mm

06-10

15.6° 9.6°

1.44 mm

06-11

20.5° 11.0°

1.75 mm

06-12

13.4° 7.6°

2.81 mm

06-13

16.7° 9.5°

0.94 mm

06-14

16.3° 8.3°

0.88 mm

06-15

16.7° 9.3°

0.06 mm

Both models agree Avg diff: 2.7°C

Where are air quality stations near Letterkenny?

Letterkenny, Co. Donegal, Ireland

0.5 km PM2.5: 6.7 µg/m³

Letterkenny, Co. Donegal, Ireland

0.5 km PM2.5: 4.1 µg/m³

Letterkenny, Co. Donegal, Ireland

0.5 km PM2.5: 6.2 µg/m³

Buncranna, Co. Donegal, Ireland

27.3 km PM2.5: 5.0 µg/m³

What cities are near Letterkenny?

21 Londonderry County Borough 21 Derry 32 Omagh 33 Coleraine 36 Sligo 24 Ballymena 19 Antrim 6 Portadown 6 Craigavon 6 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 2026-06-09T04:00 UTC.