May in Harlem averages a daily high of 21.8°C with nights around 12.6°C. Expect roughly 11.8 wet days totalling 101.8mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Harlem is May–June.
Based on NY CITY CENTRAL PARK, NY US (3.8km), 1995–2024. 30 years of May data.