Why Do They Call It Indian Summer May 2026

In recent years, some meteorologists have suggested alternatives like "Second Summer" or "Old Wives' Summer." However, "Indian Summer" remains the common vernacular. As with many historical phrases, using it today is best done with an awareness of its complicated past rather than a celebration of it. Regardless of what you call it, the cause is purely physical. As autumn progresses, the jet stream—a river of high-speed wind in the atmosphere—begins to dip southward, bringing cold Arctic air. However, occasionally the jet stream develops a large "ridge" or bulge. This ridge allows warm, dry air from the south (the subtropics) to push far north for a few days.

But if you stop to think about the phrase, it raises a rather uncomfortable question: Why “Indian”? why do they call it indian summer

The air turns soft and hazy. The sun feels warm on your cheeks, and for a few glorious days, it feels like summer snuck back in for an encore. We have a specific name for this weather phenomenon: As autumn progresses, the jet stream—a river of

Winter is coming. But not just yet. Do you have a different name for this phenomenon where you live? Share it in the comments below! But if you stop to think about the

Then, suddenly, the mercury rises.

In this context, an Indian Summer is a "false summer"—a trick of the season that pretends to be warm but is quickly followed by the brutal reality of winter. Some etymologists point to the term "Indian" meaning "from the region of the Indian Territories" (what is now the American Midwest). The theory suggests that early weather reports coming from the frontier (Indian Country) noted these late warm spells, and the name stuck to the weather pattern itself. A Note on Sensitivity It is impossible to ignore that the term is rooted in a time when Indigenous peoples were viewed as "the other" by European colonists. While the phrase is not inherently a slur, its origins come from an era of colonialism.