May in Gorno-Altaysk averages a daily high of 21.1°C. Expect roughly 13.7 wet days totalling 72.3mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Gorno-Altaysk is May–September.
Based on CEMAL, RS (58.9km), 1995–2024. 26 years of May data.