In September, Newcastle upon Tyne typically sees daytime highs of 15.9°C and overnight lows around 8.8°C. Compared to the annual average high of 11.4°C, September runs +4.5°C.
September in Newcastle upon Tyne averages a daytime high of 15.9°C and an overnight low of 8.8°C.
September runs +4.5°C compared to Newcastle upon Tyne's annual average high of 11.4°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 15.9°C and cooler evenings around 8.8°C.