September in Komatsu averages a daily high of 27.2°C. Expect roughly 12.5 wet days totalling 230.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Komatsu is May–June.
Based on KANAZAWA, JA (25.8km), 1995–2024. 21 years of September data.