Annual Weather Averages Near Letterkenny
Averages are for Castlederg, which is 30 kilometers from Letterkenny.
Based on weather reports collected during 2012–2021.
All Year Climate & Weather Averages in Letterkenny
High Temp: 19 °C
Low Temp: 2 °C
Mean Temp: 9 °C
Precipitation: 105.5 mm
Humidity: 85%
Dew Point: 7 °C
Wind: 24 km/h
Pressure: 1012 mbar
Visibility: 24 km
一月 Climate & Weather Averages in Letterkenny
High Temp: 8 °C
Low Temp: 2 °C
Mean Temp: 5 °C
Precipitation: 140.8 mm
Humidity: 90%
Dew Point: 3 °C
Wind: 28 km/h
Pressure: 1009 mbar
Visibility: 21 km
二月 Climate & Weather Averages in Letterkenny
High Temp: 8 °C
Low Temp: 2 °C
Mean Temp: 5 °C
Precipitation: 127.5 mm
Humidity: 88%
Dew Point: 3 °C
Wind: 30 km/h
Pressure: 1009 mbar
Visibility: 22 km
三月 Climate & Weather Averages in Letterkenny
High Temp: 10 °C
Low Temp: 2 °C
Mean Temp: 6 °C
Precipitation: 91.8 mm
Humidity: 84%
Dew Point: 3 °C
Wind: 28 km/h
Pressure: 1013 mbar
Visibility: 23 km
四月 Climate & Weather Averages in Letterkenny
High Temp: 12 °C
Low Temp: 3 °C
Mean Temp: 7 °C
Precipitation: 59.3 mm
Humidity: 80%
Dew Point: 4 °C
Wind: 23 km/h
Pressure: 1015 mbar
Visibility: 23 km
五月 Climate & Weather Averages in Letterkenny
High Temp: 15 °C
Low Temp: 6 °C
Mean Temp: 10 °C
Precipitation: 85.7 mm
Humidity: 79%
Dew Point: 7 °C
Wind: 23 km/h
Pressure: 1014 mbar
Visibility: 26 km
六月 Climate & Weather Averages in Letterkenny
High Temp: 18 °C
Low Temp: 9 °C
Mean Temp: 13 °C
Precipitation: 92.7 mm
Humidity: 81%
Dew Point: 10 °C
Wind: 21 km/h
Pressure: 1015 mbar
Visibility: 27 km
七月 Climate & Weather Averages in Letterkenny
High Temp: 19 °C
Low Temp: 11 °C
Mean Temp: 15 °C
Precipitation: 94.7 mm
Humidity: 82%
Dew Point: 12 °C
Wind: 20 km/h
Pressure: 1014 mbar
Visibility: 30 km
八月 Climate & Weather Averages in Letterkenny
High Temp: 18 °C
Low Temp: 11 °C
Mean Temp: 15 °C
Precipitation: 121.4 mm
Humidity: 85%
Dew Point: 12 °C
Wind: 22 km/h
Pressure: 1012 mbar
Visibility: 28 km
九月 Climate & Weather Averages in Letterkenny
High Temp: 17 °C
Low Temp: 8 °C
Mean Temp: 12 °C
Precipitation: 86.8 mm
Humidity: 87%
Dew Point: 10 °C
Wind: 21 km/h
Pressure: 1015 mbar
Visibility: 22 km
十月 Climate & Weather Averages in Letterkenny
High Temp: 13 °C
Low Temp: 6 °C
Mean Temp: 10 °C
Precipitation: 104.4 mm
Humidity: 88%
Dew Point: 8 °C
Wind: 22 km/h
Pressure: 1011 mbar
Visibility: 23 km
十一月 Climate & Weather Averages in Letterkenny
High Temp: 10 °C
Low Temp: 3 °C
Mean Temp: 6 °C
Precipitation: 115.2 mm
Humidity: 91%
Dew Point: 5 °C
Wind: 22 km/h
Pressure: 1010 mbar
Visibility: 22 km
十二月 Climate & Weather Averages in Letterkenny
High Temp: 9 °C
Low Temp: 3 °C
Mean Temp: 6 °C
Precipitation: 145.7 mm
Humidity: 90%
Dew Point: 4 °C
Wind: 28 km/h
Pressure: 1008 mbar
Visibility: 22 km