In August, Santiago de Compostela typically sees daytime highs of 24.4°C and overnight lows around 12.8°C. Compared to the annual average high of 17.4°C, August runs +6.9°C.
August in Santiago de Compostela averages a daytime high of 24.4°C and an overnight low of 12.8°C.
August runs +6.9°C compared to Santiago de Compostela's annual average high of 17.4°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 24.4°C and cooler evenings around 12.8°C.