September in Petropavlovsk-Kamchatsky averages a daily high of 14.7°C with nights around 7.8°C. Expect roughly 11 wet days totalling 105.8mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Petropavlovsk-Kamchatsky is July–August.
Based on PETROPAVLOVSK KAMCHATSKIJ, RS (9.1km), 1995–2024. 25 years of September data.