Wales' Hottest Month: August

August is typically the warmest month in Wales. Average daytime highs reach around 20 °C (68 °F), though heatwaves can push temperatures into the mid-20s °C (70s °F). Coastal areas are slightly cooler; inland valleys can be a degree or two warmer.

Seasonal Context

• June–July: Pleasant, often slightly cooler than August.
• September: Mild, but daylight decreases rapidly.
• Winter (Dec–Feb): Avg. highs 7–9 °C (45–48 °F).

Rain is possible any month; pack layers and a waterproof jacket even in summer.