August in Amherst averages a daily high of 26.4°C with nights around 16.8°C. Expect roughly 10.1 wet days totalling 79.8mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Amherst is May–September.
Based on BUFFALO NIAGARA INTERNATIONAL AIRPOR, NY US (6.1km), 1995–2024. 30 years of August data.