In September, Sunderland typically sees daytime highs of 16.2°C and overnight lows around 9.4°C. Compared to the annual average high of 11.6°C, September runs +4.6°C.
September in Sunderland averages a daytime high of 16.2°C and an overnight low of 9.4°C.
September runs +4.6°C compared to Sunderland's annual average high of 11.6°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 16.2°C and cooler evenings around 9.4°C.