August in Hempstead averages a daily high of 28.3°C with nights around 20.3°C. Expect roughly 9.2 wet days totalling 100mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Hempstead is August–October.
Based on JFK INTERNATIONAL AIRPORT, NY US (14.3km), 1995–2024. 30 years of August data.