In August, Rio das Ostras typically sees daytime highs of 25.0°C and overnight lows around 17.6°C. Compared to the annual average high of 26.8°C, August runs -1.8°C.
August in Rio das Ostras averages a daytime high of 25.0°C and an overnight low of 17.6°C.
August runs -1.8°C compared to Rio das Ostras's annual average high of 26.8°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 25.0°C and cooler evenings around 17.6°C.