In August, Barcelona typically sees daytime highs of 27.7°C and overnight lows around 18.7°C. Compared to the annual average high of 19.6°C, August runs +8.1°C.
August in Barcelona averages a daytime high of 27.7°C and an overnight low of 18.7°C.
August runs +8.1°C compared to Barcelona's annual average high of 19.6°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 27.7°C and cooler evenings around 18.7°C.