In August, Oulu typically sees daytime highs of 17.8°C and overnight lows around 9.7°C. Compared to the annual average high of 5.3°C, August runs +12.5°C.
August in Oulu averages a daytime high of 17.8°C and an overnight low of 9.7°C.
August runs +12.5°C compared to Oulu's annual average high of 5.3°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 17.8°C and cooler evenings around 9.7°C.