Overview

• The UK experienced its warmest May Day on record at 29.3°C, followed by a sharp drop to single-digit temperatures over the Bank Holiday weekend.
• High pressure is currently dominating UK weather, bringing cool but dry conditions, with temperatures gradually rising this week.
• The first mini-heatwave is forecast for May 11–12, with widespread highs above 20°C, peaking in the mid-20s in southern and eastern England.
• A second, stronger warm spell is expected around May 18–19, with temperatures potentially reaching 27°C in Greater London and 26°C in Norfolk and Manchester.
• Later in May, unsettled weather may bring rain and thunderstorms, though overall conditions are likely to remain slightly warmer and drier than average.