In September, San Cristobal de las Casas typically sees daytime highs of 23.6°C and overnight lows around 13.4°C. Compared to the annual average high of 24.3°C, September runs -0.7°C.
September in San Cristobal de las Casas averages a daytime high of 23.6°C and an overnight low of 13.4°C.
September runs -0.7°C compared to San Cristobal de las Casas's annual average high of 24.3°C, ranking #8 of 12 months by warmth.
Plan for daytime highs near 23.6°C and cooler evenings around 13.4°C.