Ireland in late September typically experiences a transition from summer to autumn. Expect daytime temperatures averaging between 10 and 15 degrees Celsius (50 and 59 degrees Fahrenheit). Rainfall becomes more frequent, and while sunshine is still possible, overcast conditions are common. This period represents a shift towards the wetter, cooler weather characteristic of the Irish winter.
Understanding Ireland’s climate at this time of year is crucial for travelers planning visits. Packing layers of clothing is advisable, allowing for adaptation to fluctuating conditions. Waterproof outerwear is essential given the increased likelihood of rain. The reduced number of tourists compared to peak summer months often means lower prices and greater availability of accommodation. Historically, late September marks the beginning of the harvest season in Ireland, a period of cultural significance.