October in Jōetsu averages a daily high of 21.4°C. Expect roughly 14.9 wet days totalling 239.3mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Jōetsu is May–June.
Based on TAKADA, JA (5.5km), 1995–2024. 26 years of October data.