In September, Ilheus typically sees daytime highs of 26.9°C and overnight lows around 19.8°C. Compared to the annual average high of 28.1°C, September runs -1.2°C.
September in Ilheus averages a daytime high of 26.9°C and an overnight low of 19.8°C.
September runs -1.2°C compared to Ilheus's annual average high of 28.1°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 26.9°C and cooler evenings around 19.8°C.