August in Dublin averages a daily high of 20.1°C with nights around 11.7°C. Expect roughly 15.1 wet days totalling 68.7mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Dublin is June–September.
Based on DUBLIN PHOENIX PARK, EI (5.8km), 1995–2024. 28 years of August data.