Air Quality in Letterkenny, Ireland
Overcast
9.4°C · 96.8% humidity
9.4°
Feels 7.0°
15
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Letterkenny's air quality — share it
AQI Forecast
Calibrated
13
10pm
13
13
15
1am
13
13
13
4am
11
11
11
7am
11
11
11
10am
11
11
11
1pm
11
11
11
4pm
11
11
11
7pm
11
11
Station readings
13
13
CAMS model
adj -14
27
27
27
27
27
27
27
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
Air Quality Index Trend
6h · 1 stnLetterkenny'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.
96.8%
Humidity
17.4 km/h
Wind NW
1017.5 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
3.6 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Letterkenny?
Temperature & Precipitation
PM2.5 Trend
6h · 1 stationPM2.53.6 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
3.6
Median
3.6
Average
3.6
Low
3.6
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +2.7
What is the 7-day forecast for Letterkenny?
07-22
17.5° 9.4°
0.13 mm
07-23
16.1° 8.3°
2.44 mm
07-24
15.1° 11.5°
8.81 mm
07-25
14.5° 8.9°
2.38 mm
07-26
16.2° 9.3°
4.5 mm
07-27
16.2° 10.3°
0.69 mm
07-28
20.0° 8.8°
0.31 mm
Both models agree
Avg diff: 2.4°C
Where are air quality stations near Letterkenny?
30
Letterkenny, Co. Donegal, Ireland
24
Letterkenny, Co. Donegal, Ireland
16
Letterkenny, Co. Donegal, Ireland
19
Buncranna, Co. Donegal, Ireland
What cities are near Letterkenny?
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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 2026-07-22T00:43 UTC.