Daytime highs, nighttime lows and the warmest cities in Louth County, Ireland this September.
Louth County, Ireland, a region in Ireland, typically experiences mild weather in September, with maximum daytime temperatures around 18°C (64°F) and nighttime temperatures around 10°C (50°F) in Dundalk.
Discover the typical September temperatures for the most popular locations of Louth County on the map below. Detailed insights are just a click away.
Check the conditions for any month of the year.
Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Louth County.
Marker color shows the average daytime high temperature in September: blue is cold, red is hot.
Dundalk averages a daytime high of 18°C (64°F) in September, which is moderate for Louth County, Ireland.
Nighttime temperatures in Dundalk typically drop to around 10°C (50°F) in September.
Most cities enjoy a balanced amount of sunshine, with around 128 hours of sunlight anticipated in Dundalk. This ensures the days are neither too dim nor excessively sunny.
We have much more information about the climate in Louth County.
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