In September, Sig typically sees daytime highs of 29.8°C and overnight lows around 18.0°C. Compared to the annual average high of 23.5°C, September runs +6.3°C.
September in Sig averages a daytime high of 29.8°C and an overnight low of 18.0°C.
September runs +6.3°C compared to Sig's annual average high of 23.5°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 29.8°C and cooler evenings around 18.0°C.