August in Fall River averages a daily high of 27.4°C with nights around 16.1°C. Expect roughly 12.1 wet days totalling 93.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Fall River is May–September.
Based on NEW BEDFORD MUNICIPAL AIRPORT, MA US (16.5km), 1995–2024. 28 years of August data.