UK weather: Temperatures to hit 26C in burst of late September warmth - BBC Weather

Temperatures in the UK could reach 26°C on Tuesday, especially in southeastern England, with widespread highs in the 20s Celsius and unusually warm nights not dropping below 20°C. This warm spell is caused by a southerly airflow bringing hot air from France and Spain, where temperatures have exceeded 30°C. Nighttime temperatures may stay above 20°C, making for an unusually warm September night. September 2026 has been significantly warmer than average, with the Central England Temperature record showing a 2.6°C increase above normal for the year so far.