In October, Rio das Ostras typically sees daytime highs of 25.7°C and overnight lows around 19.7°C. Compared to the annual average high of 26.8°C, October runs -1.1°C.
October in Rio das Ostras averages a daytime high of 25.7°C and an overnight low of 19.7°C.
October runs -1.1°C compared to Rio das Ostras's annual average high of 26.8°C, ranking #8 of 12 months by warmth.
Plan for daytime highs near 25.7°C and cooler evenings around 19.7°C.