In August, London typically sees daytime highs of 25.5°C and overnight lows around 13.8°C. Compared to the annual average high of 12.6°C, August runs +12.9°C.
August in London averages a daytime high of 25.5°C and an overnight low of 13.8°C.
August runs +12.9°C compared to London's annual average high of 12.6°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 25.5°C and cooler evenings around 13.8°C.