April in Bayonne averages a daily high of 17.2°C with nights around 7°C. Expect roughly 11.3 wet days totalling 103.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Bayonne is May–June.
Based on NEWARK LIBERTY INTERNATIONAL AIRPORT, NJ US (4.9km), 1995–2024. 30 years of April data.