May in Niitsu-honchō averages a daily high of 21.9°C. Expect roughly 10.8 wet days totalling 101.2mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Niitsu-honchō is May–June.
Based on NIIGATA, JA (14.5km), 1995–2024. 22 years of May data.