Why the Atlantic Hurricane Season Has Suddenly Gone Quiet in September

As the Atlantic hurricane season passes its statistical peak on September 10, the basin is experiencing an unexpected pause in activity. For the first time in nearly a decade, no tropical systems are active during what is typically the most storm-prone period of the year. This unusual calm is drawing comparisons to the 2016 season and could mark the latest start to September storm formation since 1992.

Warm ocean temperatures—one of the key drivers of hurricane formation—remain above average across much of the Atlantic. However, other atmospheric ingredients necessary for storm development are currently lacking. The presence of dry, stable air has suppressed storm growth, and while wind shear hasn’t been a major factor, it hasn’t helped conditions either. These unfavorable factors caused a potential system off the African coast to dissipate last week.

So far, the 2025 season has produced six named storms, slightly below the historical average for early September. Only one hurricane—Erin—has formed, though it reached Category 5 intensity and impacted the northeast Caribbean. Earlier storms like Barry and Chantal also caused significant flooding in Texas and North Carolina, showing that even below-average seasons can be destructive.

Historically, over half of hurricane activity occurs after the September 10 peak. Past years have seen powerful late-season storms, such as Hurricane Ian in 2022 and Hurricane Helene in 2024. While the current lull may offer a brief reprieve, experts emphasize the importance of continued preparedness, especially for those in hurricane-prone regions along the Gulf and Atlantic coasts.