September in Kurihara averages a daily high of 24.4°C. Expect roughly 10.6 wet days totalling 154.2mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Kurihara is May–October.
Based on ISHINOMAKI, JA (43.8km), 1995–2024. 26 years of September data.