Average September Wind Speeds in Ireland

The tables below give the average wind speed and the number of days with gales in September for cities and other places around Ireland.

Each location has an average wind speed for the month in miles per hour (MPH) and kilometres per hour (KPH). Plus there's a total of the mean number of days with gale gusts.

Gales are defined here as winds with speeds greater than 62 KPH (39 MPH or 34 knots). Gale force winds break twigs off trees and make it difficult to walk.

All the numbers here are based on weather data collected from 1981 to 2010.

You can jump to a separate table for each region of the country: Ulster, Munster, Leinster and Connacht. Ulster province includes the counties that border Northern Ireland. Munster province covers the southern part of Ireland. Leinster province is in the east, while Connacht (or Connaught) is in the west.


Average days with gales and wind speed in September
Days Place MPH KPH
0 Clones 7.2 11.7
3 Malin Head 16.8 27.0


September gales and wind speed averages
Days Place MPH KPH
0 Cork 10.8 17.4
1 Roches Point 13.0 20.9
0 Shannon 9.7 15.6
0 Valentia 9.9 15.9


Gales and wind speed averages for September
Days Place MPH KPH
0 Birr 6.9 11.1
0 Clondalkin 11.0 17.8
0 Dublin 10.6 17.0
0 Kilkenny 7.1 11.5
0 Mullingar 7.7 12.4
0 Wexford 12.2 19.6


Total days with gales and average wind speed in September
Days Place MPH KPH
2 Belmullet 13.8 22.2
0 Claremorris 8.9 14.3

Met Eireann. The Irish Meteorological Service Online. Climate. 30 Year Averages.

Ireland Wind
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