In September, Cagliari typically sees daytime highs of 27.5°C and overnight lows around 18.3°C. Compared to the annual average high of 21.3°C, September runs +6.2°C.
September in Cagliari averages a daytime high of 27.5°C and an overnight low of 18.3°C.
September runs +6.2°C compared to Cagliari's annual average high of 21.3°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 27.5°C and cooler evenings around 18.3°C.