In September, Petrozavodsk typically sees daytime highs of 12.6°C and overnight lows around 5.7°C. Compared to the annual average high of 5.9°C, September runs +6.7°C.
September in Petrozavodsk averages a daytime high of 12.6°C and an overnight low of 5.7°C.
September runs +6.7°C compared to Petrozavodsk's annual average high of 5.9°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 12.6°C and cooler evenings around 5.7°C.