June in New Haven averages a daily high of 25.1°C with nights around 15.5°C. Expect roughly 11.5 wet days totalling 92.9mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit New Haven is May–June.
Based on NEW HAVEN TWEED AIRPORT, CT US (6.4km), 1995–2024. 23 years of June data.