Valentia Observatory in Co Kerry received 182.7mm (seven inches) of rainfall, while Cork Airport experienced 136.3mm (5.3 inches) in the ninth month of the year. This was the highest volume of rain the two stations has received in 10 years.

Both of these records are high above the long-time average of the area.

Of all of Met Éireann’s forecasting centres, Newport in Co Mayo received the highest volume of rain. A total of 205.2mm (eight inches) fell at the station, making it the wettest September in six years. Knock Airport had its wettest September in five years, with a total of 103.2mm of rain.

Like Newport and Knock, over three quarters of weather stations across Ireland reported this September to be their wettest in five or six years.

The highest 24 hours of rainfall that occurred was at Johnstown Castle, Co Wexford, with 30.9mm, which made it the wettest September day since 2010.


While the west of the country endured a wetter than normal September, the east enjoyed a much drier and warmer month. On 6 September, the Phoenix Park recorded a temperature of 25.1°C, which was the highest September temperature recorded since the station opened in 1942.

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Weekly weather: rainfall warning