Met Office predicts late-season heatwaves for UK in September

The Met Office has forecast above-average temperatures for the UK into early autumn, with the possibility of late-season heatwaves, particularly across southern regions. The latest long-range outlook, spanning from August 29 to September 12, indicates that while confidence is limited, conditions are "again likely to be above average overall."

Forecasters state there is "the potential for late season hot spells or heatwaves, especially in the south." The prediction suggests a potential northwest-southeast divide could emerge, with more unsettled conditions affecting northern and northwestern areas, while the south and east may see drier, more settled weather. The Met Office emphasized that weather signals are currently weak, meaning "something close to the climatological norm is the current preferred story." Therefore, while a September heatwave is possible, it is not guaranteed.

The forecast follows a summer marked by exceptional warmth. Earlier in 2026, the Met Office reported that the UK experienced three widespread heatwaves and broke numerous climate records by mid-July. Spring 2026 was confirmed as the warmest on record for England and Wales, and June was England’s warmest...