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Live forecasts update automatically; written guidance last reviewed 20 June 2026 by the Culture Observer weather desk. Data from national met services via Open-Meteo.
An Indian summer in the UK is a warm, calm spell of weather that occurs after the first frosts of autumn, typically in late September or October. The live forecast above will show whether such conditions are expected in the coming days.
When does an Indian summer typically happen in the UK?
Meteorologically, an Indian summer is defined as a period of unseasonably warm, dry and settled weather following the first autumn frost. In the UK, this most often occurs in late September or October, though the exact timing varies each year. For 2025, keep an eye on the 10-day forecast for any late-season warmth.
What should you pack and expect?
Daytime temperatures can reach 20°C or more, but nights remain cool. Pack layers: a light jacket or cardigan for evenings, and comfortable shoes for walking. School holidays in late October (half-term) often coincide with these conditions, making it a good time for a short break. For city trips, see our Bristol weather or Liverpool weather guides.
Why is it called Indian summer?
The term likely originates from 18th-century North America, referring to warm autumn weather that allowed Native American (Indian) tribes to continue hunting. It has been used in the UK since the 19th century.
Is the term Indian summer offensive?
Some consider it outdated or culturally insensitive, as it uses “Indian” as a descriptor for weather. Alternatives include “second summer” or “late summer warmth,” though the phrase remains common in UK media.
Can an Indian summer happen in September?
Yes, if the first frost has occurred early. However, most UK Indian summers are recorded in October, as September warmth is still considered late summer rather than a distinct post-frost phenomenon.