June in Fairfield averages a daily high of 25.2°C with nights around 16.3°C. Expect roughly 11.5 wet days totalling 95.2mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Fairfield is June–September.
Based on IGOR I SIKORSKY MEMORIAL AIRPORT, CT US (11.8km), 1995–2024. 30 years of June data.