In March, Dun Laoghaire typically sees daytime highs of 9.3°C and overnight lows around 3.5°C. Compared to the annual average high of 12.7°C, March runs -3.4°C.
March in Dun Laoghaire averages a daytime high of 9.3°C and an overnight low of 3.5°C.
March runs -3.4°C compared to Dun Laoghaire's annual average high of 12.7°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 9.3°C and cooler evenings around 3.5°C.