August in Union City averages a daily high of 28.6°C with nights around 20.5°C. Expect roughly 9.9 wet days totalling 118.4mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Union City is May–June.
Based on NY CITY CENTRAL PARK, NY US (4.6km), 1995–2024. 30 years of August data.