Summer-like temperatures returning after rainy start

By the Editorial Team · Sunday, September 13, 2026

The UK is set to experience a return of summer-like temperatures this week, with London reaching up to 25 degrees Celsius and other cities like Manchester and Cardiff also warming. Although the warmer weather follows a rainy start to September, it falls short of a heatwave, meaning conditions are mild but notable as the country moves into early autumn.

After a wet beginning to September, summer-like temperatures are expected to return across parts of the United Kingdom over the next few days. According to forecasts from the Met Office, London is set to experience highs of up to 24 degrees Celsius today, while Manchester could see temperatures around 21 degrees Celsius.

The warming trend is predicted to continue into tomorrow, with daytime temperatures potentially reaching 25 degrees Celsius in London. Manchester and Cardiff are also expected to warm up, with highs near 22 degrees Celsius. Meanwhile, some regions of Scotland may see temperatures rising to approximately 20 degrees Celsius.

Despite these warmer conditions, meteorologists note that the current forecast does not meet the criteria for a heatwave. The Met Office defines a heatwave as a period of at least three consecutive days with temperatures exceeding roughly 28 degrees Celsius in the London area or 25 degrees Celsius in Scotland.

This shift toward milder weather follows a spell of rainfall that marked the start of the month. Residents and visitors alike may welcome the return of more settled and warmer conditions as the UK transitions from late summer into early autumn.

This article was reported by synthesizing coverage from multiple independent news outlets to present a balanced, unbiased account. Read about our editorial standards. Spotted an error? Let us know.