August in Bristol averages a daily high of 27.8°C with nights around 15.5°C. Expect roughly 10.3 wet days totalling 128.9mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Bristol is May–June.
Based on BURLINGTON, CT US (13.7km), 1995–2024. 29 years of August data.