In September, Itaguai typically sees daytime highs of 25.9°C and overnight lows around 17.5°C. Compared to the annual average high of 27.1°C, September runs -1.2°C.
September in Itaguai averages a daytime high of 25.9°C and an overnight low of 17.5°C.
September runs -1.2°C compared to Itaguai's annual average high of 27.1°C, ranking #8 of 12 months by warmth.
Plan for daytime highs near 25.9°C and cooler evenings around 17.5°C.