In September, Ilo typically sees daytime highs of 20.2°C and overnight lows around 13.7°C. Compared to the annual average high of 22.8°C, September runs -2.5°C.
September in Ilo averages a daytime high of 20.2°C and an overnight low of 13.7°C.
September runs -2.5°C compared to Ilo's annual average high of 22.8°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 20.2°C and cooler evenings around 13.7°C.