In August, Saint Petersburg typically sees daytime highs of 20.2°C and overnight lows around 11.0°C. Compared to the annual average high of 8.0°C, August runs +12.2°C.
August in Saint Petersburg averages a daytime high of 20.2°C and an overnight low of 11.0°C.
August runs +12.2°C compared to Saint Petersburg's annual average high of 8.0°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 20.2°C and cooler evenings around 11.0°C.