In September, Georgetown typically sees daytime highs of 30.7°C and overnight lows around 23.8°C. Compared to the annual average high of 29.5°C, September runs +1.3°C.
September in Georgetown averages a daytime high of 30.7°C and an overnight low of 23.8°C.
September runs +1.3°C compared to Georgetown's annual average high of 29.5°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 30.7°C and cooler evenings around 23.8°C.