In September, Santutxu typically sees daytime highs of 21.9°C and overnight lows around 14.0°C. Compared to the annual average high of 17.0°C, September runs +4.9°C.
September in Santutxu averages a daytime high of 21.9°C and an overnight low of 14.0°C.
September runs +4.9°C compared to Santutxu's annual average high of 17.0°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 21.9°C and cooler evenings around 14.0°C.