In September, Porto-Novo typically sees daytime highs of 29.1°C and overnight lows around 23.0°C. Compared to the annual average high of 30.6°C, September runs -1.6°C.
September in Porto-Novo averages a daytime high of 29.1°C and an overnight low of 23.0°C.
September runs -1.6°C compared to Porto-Novo's annual average high of 30.6°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 29.1°C and cooler evenings around 23.0°C.