In September, Birkenhead typically sees daytime highs of 16.8°C and overnight lows around 10.4°C. Compared to the annual average high of 12.6°C, September runs +4.2°C.
September in Birkenhead averages a daytime high of 16.8°C and an overnight low of 10.4°C.
September runs +4.2°C compared to Birkenhead's annual average high of 12.6°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 16.8°C and cooler evenings around 10.4°C.