In September, Oi typically sees daytime highs of 26.6°C and overnight lows around 19.7°C. Compared to the annual average high of 19.6°C, September runs +7.1°C.
September in Oi averages a daytime high of 26.6°C and an overnight low of 19.7°C.
September runs +7.1°C compared to Oi's annual average high of 19.6°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 26.6°C and cooler evenings around 19.7°C.