November in Union averages a daily high of 13°C with nights around 4°C. Expect roughly 8.8 wet days totalling 81.2mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Union is May–June.
Based on NEWARK LIBERTY INTERNATIONAL AIRPORT, NJ US (8.1km), 1995–2024. 30 years of November data.