In September, Barry typically sees daytime highs of 17.4°C and overnight lows around 10.8°C. Compared to the annual average high of 13.0°C, September runs +4.4°C.
September in Barry averages a daytime high of 17.4°C and an overnight low of 10.8°C.
September runs +4.4°C compared to Barry's annual average high of 13.0°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 17.4°C and cooler evenings around 10.8°C.