In September, Baytown typically sees daytime highs of 30.3°C and overnight lows around 22.2°C. Compared to the annual average high of 24.8°C, September runs +5.6°C.
September in Baytown averages a daytime high of 30.3°C and an overnight low of 22.2°C.
September runs +5.6°C compared to Baytown's annual average high of 24.8°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 30.3°C and cooler evenings around 22.2°C.