In August, Viana typically sees daytime highs of 26.6°C and overnight lows around 17.8°C. Compared to the annual average high of 28.6°C, August runs -2.0°C.
August in Viana averages a daytime high of 26.6°C and an overnight low of 17.8°C.
August runs -2.0°C compared to Viana's annual average high of 28.6°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 26.6°C and cooler evenings around 17.8°C.