In September, Bonao typically sees daytime highs of 31.0°C and overnight lows around 19.6°C. Compared to the annual average high of 29.4°C, September runs +1.6°C.
September in Bonao averages a daytime high of 31.0°C and an overnight low of 19.6°C.
September runs +1.6°C compared to Bonao's annual average high of 29.4°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 31.0°C and cooler evenings around 19.6°C.