In August, Trondheim typically sees daytime highs of 18.1°C and overnight lows around 9.1°C. Compared to the annual average high of 8.4°C, August runs +9.7°C.
August in Trondheim averages a daytime high of 18.1°C and an overnight low of 9.1°C.
August runs +9.7°C compared to Trondheim's annual average high of 8.4°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 18.1°C and cooler evenings around 9.1°C.