1889 Atlantic hurricane season

Hurricane Three
Climate researcher Michael Chenoweth could not confirm the existence of this cyclone, citing "unreliable" reports from the Dominican Republic "and absence of evidence from daily weather map series".

Hurricane Four
Hurricane San Martín of 1889

Hurricane Six
Guadeloupe observed stormy conditions on September 12. Consequently, the track for this system begins just east of the Leeward Islands that day. After passing between Guadeloupe and Dominica later on September 12, the cyclone moved west-northwestward to westward across the Caribbean. By September 17, the storm intensified into a hurricane over the northwestward Caribbean, based on conditions reported by the steamer Mascotte. The system strengthened further, likely to a strong Category 2 hurricane prior to making landfall in Mexico near Felipe Carrillo Puerto, Quintana Roo, several hours later. Late on September 18, the storm emerged into the Gulf of Mexico near Campeche after weakening to a tropical storm. However, the cyclone quickly re-gained hurricane status and curved northward on September 19. The hurricane turned northeastward by September 22 and then made landfall near Buras, Louisiana, as a Category 1 hurricane with a barometric pressure of 982 mbar. Later on September 23, the system struck near Gulf Shores, Alabama, likely as a strong tropical storm. After crossing the Southeastern United States, the storm emerged into the Atlantic from the Delmarva Peninsula early on September 25 and crossed far eastern Massachusetts before becoming extratropical over the Gulf of Maine.

In Mexico, the states of Campeche and Tabasco reported a few days of heavy rains, overflowing rivers, causing mudslides, and destroying some homes. Additionally, strong winds toppled trees and damaged crops, especially bananas and corn. Many of these trees fell onto dwellings, demolishing more than 100 and destroying some 250 others in Carmen. Although the storm remained far south of Florida as it headed towards the Yucatán Peninsula, a few locations observed tropical storm-force wind gusts, including up to 60 mph (95 km/h) at Key West. Several communities across the northern portion of the state reported some damaged homes and downed trees. Several locations across Georgia observed at least 1 in of rain, including 1.93 in in Smithville. Although the storm crossed the interior portions of North Carolina, wind gusts reached as high as 70 mph (110 km/h) along the coast, likely at Frying Pan Shoals. Some wind damage was reported over the western part of the state, mainly downed telegraph wires in Asheville and a hotel partially deroofed in Swannanoa.

Tropical Storm Nine
Chenoweth also proposed the removal of this storm from HURDAT, finding "No evidence in land-based reports or from ships".