June in Petrozavodsk averages a daily high of 18.8°C with nights around 9.4°C. Expect roughly 12.5 wet days totalling 59.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Petrozavodsk is June–August.
Based on PETROZAWODSK, RS (5.5km), 1995–2024. 23 years of June data.