September Ends 30‑Year Hurricane streak, Raising El Niño Questions

In an occurrence not seen for about thirty years, the Atlantic basin ended September with zero hurricanes, shattering a trend that has traditionally made the month the peak of the yearly storm season.

September has long contributed the bulk of named storms and hurricanes, and climatology indicates that over 50 % of Atlantic hurricanes attain their maximum strength in that month. The lack of a hurricane this September is striking given the steady activity record that has continued since the early 1990s.

Researchers attribute the quiet spell largely to the current El Niño episode. This warming of the central and eastern Pacific typically raises wind shear across the Atlantic, a factor that hampers storm development and strengthening. Although El Niño does not assure a silent season, its role in curbing Atlantic hurricane counts is well established.

Still, forecasters warn that the season is not concluded. August saw a handful of tropical storms, and the atmospheric setup that has held back hurricanes may change as the El Niño phase diminishes. Historically, October delivers another spike in activity, leaving room for late‑season storms, particularly if sea‑surface temperatures remain elevated and wind shear relaxes.

This rare September pause highlights how difficult seasonal forecasts can be. Even though climate models factor in El Niño’s suppressing influence, the inherent variability of tropical systems requires adaptable predictions. Emergency officials and coastal dwellers should remain ready for potential storms later in the season, despite the present data indicating a calmer month than normal.