August in New Rochelle averages a daily high of 29.1°C with nights around 21.6°C. Expect roughly 9.5 wet days totalling 113.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit New Rochelle is May–June.
Based on LAGUARDIA AIRPORT, NY US (16.8km), 1995–2024. 30 years of August data.