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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Civic Insight weather desk. Data from national met services via Open-Meteo.
Check the live forecast above to see if a warm, dry spell is expected in your area. An Indian summer refers to a period of unseasonably mild and settled autumn weather, usually arriving after the first frost and most common in September or October.
What is an Indian summer in the UK?
In British terms, an Indian summer is a short-lived but notable warm spell that occurs after the first frost of autumn. It often brings clear skies and temperatures several degrees above the seasonal average, typically between 15–20°C. The phenomenon is not guaranteed every year and can last from a few days to just over a week. For the latest conditions across the country, see our UK weather hub.
Will there be an Indian summer in 2025?
Whether an Indian summer 2025 will materialise depends on the jet stream and high-pressure patterns that develop later in autumn. The live forecast above offers the most up-to-date guidance for your location. While long-range predictions remain uncertain, any settled spell is most likely in late September or October. Check the 10-day forecast to monitor changes.
Why is it called Indian summer?
The term likely originated from early North American settlers who observed warm spells during Native American harvest periods. Other theories link it to the Indian subcontinent’s autumn weather. In the UK, the phrase has been used since the 19th century to describe any unseasonably warm, settled autumn period.
Is the term Indian summer offensive?
Some find the phrase outdated or culturally insensitive, and alternatives such as ‘second summer’ or ‘late summer’ are occasionally used. However, it remains widely understood in UK weather discussions and appears in official Met Office glossaries. There is no formal move to ban it.
What is an Indian summer in the UK?
In the UK, an Indian summer is a brief period of warm, dry weather that arrives after the first frost of autumn. It usually brings clear skies and temperatures well above the seasonal norm, most often in September or October. It is not an annual event and varies in length.