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Late September Sun: Britain Braces for 27C Warm Spell
19 Sep
Summary
- Up to 24 counties could experience temperatures of 27C or higher.
- Hottest areas might reach a peak of 29C during the warm spell.
- The UK can expect periods of drier weather alongside unsettled spells.

A late September warm spell is set to bring significantly higher temperatures across parts of Britain, with projections indicating highs could reach 29C. Weather models suggest that up to 24 UK counties could see temperatures of 27C or above by September 28. The warmest conditions are anticipated in the south and east, but the warmth is expected to extend further north than is typical for this time of year.
While specific cities like London, Birmingham, and Cambridge could reach the high 20s, other areas such as Sheffield and Lincoln might also experience mid-20s temperatures. The southwest and Wales are also set for warmer days, though Scotland is expected to remain cooler. Despite the warm spell, the overall forecast for the period includes changeable weather with rain and wind, particularly in northern and western regions. However, periods of drier and more settled weather are expected to return, potentially lasting several days, with temperatures generally remaining slightly above average.