In September, Ciudad Acuna typically sees daytime highs of 33.1°C and overnight lows around 20.4°C. Compared to the annual average high of 27.5°C, September runs +5.5°C.
September in Ciudad Acuna averages a daytime high of 33.1°C and an overnight low of 20.4°C.
September runs +5.5°C compared to Ciudad Acuna's annual average high of 27.5°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 33.1°C and cooler evenings around 20.4°C.