In October, Dun Laoghaire typically sees daytime highs of 13.6°C and overnight lows around 7.9°C. Compared to the annual average high of 12.7°C, October runs +0.9°C.
October in Dun Laoghaire averages a daytime high of 13.6°C and an overnight low of 7.9°C.
October runs +0.9°C compared to Dun Laoghaire's annual average high of 12.7°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 13.6°C and cooler evenings around 7.9°C.