September in Pyatigorsk averages a daily high of 24.5°C with nights around 11.7°C. Expect roughly 8.7 wet days totalling 40.8mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Pyatigorsk is May–June.
Based on MINERAL NYE VODY, RS (17.1km), 1995–2024. 24 years of September data.