In September, Valle de Santiago typically sees daytime highs of 25.8°C and overnight lows around 13.3°C. Compared to the annual average high of 26.5°C, September runs -0.7°C.
September in Valle de Santiago averages a daytime high of 25.8°C and an overnight low of 13.3°C.
September runs -0.7°C compared to Valle de Santiago's annual average high of 26.5°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 25.8°C and cooler evenings around 13.3°C.