In August, Siedlce typically sees daytime highs of 22.8°C and overnight lows around 11.6°C. Compared to the annual average high of 11.5°C, August runs +11.3°C.
August in Siedlce averages a daytime high of 22.8°C and an overnight low of 11.6°C.
August runs +11.3°C compared to Siedlce's annual average high of 11.5°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 22.8°C and cooler evenings around 11.6°C.