In April, Cardiff typically sees daytime highs of 12.1°C and overnight lows around 4.7°C. Compared to the annual average high of 13.4°C, April runs -1.3°C.
April in Cardiff averages a daytime high of 12.1°C and an overnight low of 4.7°C.
April runs -1.3°C compared to Cardiff's annual average high of 13.4°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 12.1°C and cooler evenings around 4.7°C.