In September, Bethlehem typically sees daytime highs of 22.9°C and overnight lows around 5.0°C. Compared to the annual average high of 22.4°C, September runs +0.5°C.
September in Bethlehem averages a daytime high of 22.9°C and an overnight low of 5.0°C.
September runs +0.5°C compared to Bethlehem's annual average high of 22.4°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 22.9°C and cooler evenings around 5.0°C.