In September, Ciudad Frontera typically sees daytime highs of 31.2°C and overnight lows around 17.2°C. Compared to the annual average high of 27.9°C, September runs +3.4°C.
September in Ciudad Frontera averages a daytime high of 31.2°C and an overnight low of 17.2°C.
September runs +3.4°C compared to Ciudad Frontera's annual average high of 27.9°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 31.2°C and cooler evenings around 17.2°C.