In August, Derry typically sees daytime highs of 17.6°C and overnight lows around 10.3°C. Compared to the annual average high of 11.9°C, August runs +5.7°C.
August in Derry averages a daytime high of 17.6°C and an overnight low of 10.3°C.
August runs +5.7°C compared to Derry's annual average high of 11.9°C, ranking #1 of 12 months by warmth.
Plan for daytime highs near 17.6°C and cooler evenings around 10.3°C.