In September, San Fernando typically sees daytime highs of 26.4°C and overnight lows around 18.2°C. Compared to the annual average high of 21.5°C, September runs +4.8°C.
September in San Fernando averages a daytime high of 26.4°C and an overnight low of 18.2°C.
September runs +4.8°C compared to San Fernando's annual average high of 21.5°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 26.4°C and cooler evenings around 18.2°C.