In September, Byumba typically sees daytime highs of 24.7°C and overnight lows around 12.4°C. Compared to the annual average high of 24.0°C, September runs +0.7°C.
September in Byumba averages a daytime high of 24.7°C and an overnight low of 12.4°C.
September runs +0.7°C compared to Byumba's annual average high of 24.0°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 24.7°C and cooler evenings around 12.4°C.