In September, Blumenau typically sees daytime highs of 22.9°C and overnight lows around 14.2°C. Compared to the annual average high of 25.4°C, September runs -2.5°C.
September in Blumenau averages a daytime high of 22.9°C and an overnight low of 14.2°C.
September runs -2.5°C compared to Blumenau's annual average high of 25.4°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 22.9°C and cooler evenings around 14.2°C.