In August, Lahti typically sees daytime highs of 19.8°C and overnight lows around 9.3°C. Compared to the annual average high of 7.8°C, August runs +11.9°C.
August in Lahti averages a daytime high of 19.8°C and an overnight low of 9.3°C.
August runs +11.9°C compared to Lahti's annual average high of 7.8°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 19.8°C and cooler evenings around 9.3°C.