Average Rainfall for Ireland in September

The tables below give monthly averages for rainfall during September at cities and other locations around Ireland.

Each place has a total for how many days of wet weather it usually gets this month and for the normal amount of precipitation.

The calculation of days only includes the days when precipitation totalled at least 0.2 millimetres (0.008 inches). For Donegal and Galway, the total days includes any with at least 0.1 mm (0.004 inches) of precipitation.

The month's total amounts of rainfall given here are averages of weather data collected during 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 monthly precipitation in September
Days Place Inches Milli­metres
18 Clones 3.0 76
Donegal 4.0 102
19 Malin Head 3.6 92


September averages for total rainfall
Days Place Inches Milli­metres
16 Cork 3.7 95
10 Roches Point 2.3 57
16 Shannon 3.0 76
19 Valentia 4.9 125


Average amount of rain in September
Days Place Inches Milli­metres
17 Birr 2.6 66
14 Clondalkin 2.4 60
15 Dublin 2.3 60
15 Kilkenny 2.7 69
17 Mullingar 2.9 74
15 Wexford 3.5 88


Precipitation totals for September
Days Place Inches Milli­metres
20 Belmullet 4.0 102
18 Claremorris 3.7 94
15 Galway 4.2 107

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

World Meterorological Organization. World Weather Information Service. Ireland.

Ireland Precipitation
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