In September, New Braunfels typically sees daytime highs of 32.1°C and overnight lows around 20.0°C. Compared to the annual average high of 26.3°C, September runs +5.8°C.
September in New Braunfels averages a daytime high of 32.1°C and an overnight low of 20.0°C.
September runs +5.8°C compared to New Braunfels's annual average high of 26.3°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 32.1°C and cooler evenings around 20.0°C.