In August, Porto Alegre typically sees daytime highs of 19.9°C and overnight lows around 10.8°C. Compared to the annual average high of 24.3°C, August runs -4.4°C.
August in Porto Alegre averages a daytime high of 19.9°C and an overnight low of 10.8°C.
August runs -4.4°C compared to Porto Alegre's annual average high of 24.3°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 19.9°C and cooler evenings around 10.8°C.