In September, Portoviejo typically sees daytime highs of 28.8°C and overnight lows around 20.0°C. Compared to the annual average high of 29.1°C, September runs -0.3°C.
September in Portoviejo averages a daytime high of 28.8°C and an overnight low of 20.0°C.
September runs -0.3°C compared to Portoviejo's annual average high of 29.1°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 28.8°C and cooler evenings around 20.0°C.