October in Dublin averages a daily high of 25.6°C with nights around 10°C. Expect roughly 3 wet days totalling 21.2mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Dublin is April–June.
Based on LIVERMORE MUNICIPAL AIRPORT, CA US (10.7km), 1995–2024. 27 years of October data.