how long did hurricane katrina last
Hurricane Katrina, as an organized tropical system, lasted about one week—from August 23 to August 31, 2005.
Quick Scoop: How long did Hurricane Katrina last?
- Katrina first formed as a tropical depression over the Bahamas on August 23, 2005.
- It strengthened and made its first landfall in Florida on August 25, 2005.
- After crossing Florida and rapidly intensifying over the Gulf of Mexico, it made catastrophic landfall along the Gulf Coast on August 29, 2005.
- The system weakened as it moved inland and was downgraded and dissipated by about August 31, 2005.
So if you’re just looking for the simple answer to “how long did Hurricane Katrina last,” most meteorological timelines treat it as roughly 8 days from formation to dissipation , with the worst destruction packed into about 25–48 hours around August 29.
Short timeline
- August 23 – Forms as a tropical depression near the Bahamas.
- August 25 – Hits South Florida as a Category 1 hurricane.
- August 26–28 – Intensifies over the Gulf of Mexico, reaching Category 5 at peak.
- August 29 – Major landfall on the Gulf Coast (Louisiana–Mississippi region). This is when most people remember “Katrina” as happening.
- August 30–31 – Rapid weakening inland; storm transitions and dissipates.
In everyday conversation, people often say Katrina “lasted a few days,” but in official storm records, its life cycle is counted from first formation to final dissipation—about a week.
Information gathered from public forums or data available on the internet and portrayed here.