In September, Barreiras typically sees daytime highs of 34.0°C and overnight lows around 17.8°C. Compared to the annual average high of 31.5°C, September runs +2.5°C.
September in Barreiras averages a daytime high of 34.0°C and an overnight low of 17.8°C.
September runs +2.5°C compared to Barreiras's annual average high of 31.5°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 34.0°C and cooler evenings around 17.8°C.