Indian summer

American  

noun

1. a period of mild, dry weather, usually accompanied by a hazy atmosphere, occurring usually in late October or early November and following a period of colder weather.

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Indian summer British  

noun

1. a period of unusually settled warm weather after the end of summer proper

2. a period of ease and tranquillity or of renewed productivity towards the end of a person's life or of an epoch

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Indian summer Cultural  

1. A period of unusually warm weather in the fall, often following a seasonable cold spell.

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Indian summer Idioms  

1. A period of mild, sunny weather occurring in late autumn, usually following a seasonable cold spell. For example, We had two whole days of Indian summer this year, and then it turned cold again. [Late 1700s]

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Etymology

Origin of Indian summer

An Americanism dating back to 1770–80

Example Sentences

The air-conditioning - built for Russian winters - was barely adequate in scorching Indian summers.

From BBC

Temperatures will stay around average until the weekend when it will turn a little warmer but will a September heatwave lead to a so-called Indian summer?

From BBC

"Mangoes, with their rich sweetness and diverse varieties, are a staple of Indian summers, and it's understandable why people want to indulge," says Rahul Baxi.

From BBC

But Met Office meteorologist Tom Morgan dampened hopes of an Indian summer over the next seven days, predicting that the better weather would be replaced by wet and windy conditions by next weekend.

From BBC

Indian summers, which extend from March to September, are usually hot and humid.

From BBC