In June, Cardiff typically sees daytime highs of 18.2°C and overnight lows around 10.4°C. Compared to the annual average high of 13.4°C, June runs +4.8°C.
June in Cardiff averages a daytime high of 18.2°C and an overnight low of 10.4°C.
June runs +4.8°C compared to Cardiff's annual average high of 13.4°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 18.2°C and cooler evenings around 10.4°C.