In August, Newcastle typically sees daytime highs of 18.1°C and overnight lows around 8.9°C. Compared to the annual average high of 22.1°C, August runs -4.0°C.
August in Newcastle averages a daytime high of 18.1°C and an overnight low of 8.9°C.
August runs -4.0°C compared to Newcastle's annual average high of 22.1°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 18.1°C and cooler evenings around 8.9°C.