August in Perth Amboy averages a daily high of 29.5°C with nights around 17.9°C. Expect roughly 10.5 wet days totalling 118.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Perth Amboy is May–June.
Based on NEW BRUNSWICK 3 SE, NJ US (13.8km), 1995–2024. 30 years of August data.