In July, Cardiff typically sees daytime highs of 19.6°C and overnight lows around 12.2°C. Compared to the annual average high of 13.4°C, July runs +6.3°C.
July in Cardiff averages a daytime high of 19.6°C and an overnight low of 12.2°C.
July runs +6.3°C compared to Cardiff's annual average high of 13.4°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 19.6°C and cooler evenings around 12.2°C.