In September, Chennai typically sees daytime highs of 33.5°C and overnight lows around 25.2°C. Compared to the annual average high of 32.5°C, September runs +1.0°C.
September in Chennai averages a daytime high of 33.5°C and an overnight low of 25.2°C.
September runs +1.0°C compared to Chennai's annual average high of 32.5°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 33.5°C and cooler evenings around 25.2°C.