Every day of September and what happened on it, in any year, with the month’s most significant events.
Hurricanes and tropical storms
Hurricane Maria crossed the coast near Roseau, Saint George Parish, Dominica as a category 5 hurricane, 145 kt (165 mph), central pressure 922 mb. It killed 4,645 people in all. S. territory of Puerto Rico, which accounted for 2,975 of the 3,059 deaths.
From Wikipedia, CC BY-SA 4.0.
Hurricanes and tropical storms
Hurricane Maria crossed the coast as a category 4 hurricane, 135 kt (155 mph), central pressure 920 mb. It killed 4,645 people in all. S. territory of Puerto Rico, which accounted for 2,975 of the 3,059 deaths.
From Wikipedia, CC BY-SA 4.0.
Hurricanes and tropical storms
Hurricane Maria reached its peak of 150 kt (175 mph) with a central pressure of 909 mb, a category 5 storm.
Hurricanes and tropical storms
Hurricane Irma crossed the coast near Saint John’s, Saint John Parish, Antigua and Barbuda as a category 5 hurricane, 155 kt (180 mph), central pressure 914 mb. It killed 133 people in all. Hurricane Irma was an extremely powerful and devastating tropical cyclone that caused extensive damage and multiple deaths across the Antilles and Eastern United States in September 2017. Irma was the first Category 5 hurricane to strike the Leeward Islands on record, followed by Hurricane Maria, which struck the region at Category 5 intensity two weeks later.
From Wikipedia, CC BY-SA 4.0.
Hurricanes and tropical storms
Hurricane Irma crossed the coast near Esmeralda, Camaguey, Cuba as a category 5 hurricane, 145 kt (165 mph), central pressure 924 mb. It killed 133 people in all. Hurricane Irma was an extremely powerful and devastating tropical cyclone that caused extensive damage and multiple deaths across the Antilles and Eastern United States in September 2017. Irma was the first Category 5 hurricane to strike the Leeward Islands on record, followed by Hurricane Maria, which struck the region at Category 5 intensity two weeks later.
From Wikipedia, CC BY-SA 4.0.
Floods
The 1887 Yellow River flood in the Qing Dynasty was a flood in China that began in late September 1887 and killed at least 930,000 people. It was the single deadliest flood in Chinese history, as well as one of the largest natural disasters by death toll in recorded history.
From Wikipedia, CC BY-SA 4.0.
Earthquakes
A magnitude 7.9 earthquake struck Tokyo, Yokohama, Japan. With the tsunami it caused, it killed 105,385 people, injured 52,074, destroyed 695,000 houses and did $600 million in damage.
Tsunamis
A tsunami caused by a magnitude 7.9 earthquake struck Sagami Bay, Japan, with a maximum water height of 13 meters. It killed 105,385 people, injured 52,074, destroyed 695,000 houses and did $600 million in damage.
Hurricanes and tropical storms
Hurricane Dorian crossed the coast as a category 5 hurricane, 160 kt (185 mph), central pressure 910 mb. It killed 84 people in all. Hurricane Dorian was an extremely powerful and catastrophic tropical cyclone, which became the most intense on record to strike the Bahamas. It is tied with the 1935 Labor Day hurricane and Hurricane Melissa in 2025 for the strongest landfall in the Atlantic basin in terms of maximum sustained winds.
From Wikipedia, CC BY-SA 4.0.
Hurricanes and tropical storms
Hurricane Dorian crossed the coast near Lucaya, Freeport, Bahamas as a category 5 hurricane, 155 kt (180 mph), central pressure 914 mb. It killed 84 people in all. Hurricane Dorian was an extremely powerful and catastrophic tropical cyclone, which became the most intense on record to strike the Bahamas. It is tied with the 1935 Labor Day hurricane and Hurricane Melissa in 2025 for the strongest landfall in the Atlantic basin in terms of maximum sustained winds.
From Wikipedia, CC BY-SA 4.0.
Hurricanes and tropical storms
Hurricane Helene crossed the coast near Perry, FL as a category 4 hurricane, 120 kt (140 mph), central pressure 939 mb. It killed 175 people in all, by the National Hurricane Center’s count. Hurricane Helene was a powerful and devastating tropical cyclone that caused widespread catastrophic damage and numerous fatalities across the Southeastern United States in late September 2024. S.
From Wikipedia, CC BY-SA 4.0.
Hurricanes and tropical storms
Hurricane Ike crossed the coast near Banes, Holguin Province, Cuba as a category 4 hurricane, 115 kt (130 mph), central pressure 945 mb. It killed 195 people in all. Hurricane Ike was a long-lived, powerful and destructive tropical cyclone that swept through portions of the Greater Antilles and Northern America in September 2008, wreaking havoc on infrastructure and agriculture, particularly in Cuba and Texas. Ike took a similar track to the 1900 Galveston hurricane.
From Wikipedia, CC BY-SA 4.0.
Hurricanes and tropical storms
Hurricane Irma crossed the coast near Providenciales, Turks and Caicos Islands, Turks and Caicos Islands as a category 4 hurricane, 135 kt (155 mph), central pressure 924 mb. It killed 133 people in all. Hurricane Irma was an extremely powerful and devastating tropical cyclone that caused extensive damage and multiple deaths across the Antilles and Eastern United States in September 2017. Irma was the first Category 5 hurricane to strike the Leeward Islands on record, followed by Hurricane Maria, which struck the region at Category 5 intensity two weeks later.
From Wikipedia, CC BY-SA 4.0.
Hurricanes and tropical storms
Hurricane Irma crossed the coast near Cudjoe Key, FL as a category 4 hurricane, 115 kt (130 mph), central pressure 931 mb. It killed 133 people in all. Hurricane Irma was an extremely powerful and devastating tropical cyclone that caused extensive damage and multiple deaths across the Antilles and Eastern United States in September 2017. Irma was the first Category 5 hurricane to strike the Leeward Islands on record, followed by Hurricane Maria, which struck the region at Category 5 intensity two weeks later.
From Wikipedia, CC BY-SA 4.0.
Earthquakes
A magnitude 8.1 earthquake struck Mexico City, Michoacan. It killed 9,500 people, injured 30,000 and did $4 billion in damage. It caused a tsunami.
Gathered from this site’s archives: the tornado record (NOAA SPC, and Grazulis before 1950), IBTrACS and the National Hurricane Center, NOAA NCEI’s Storm Events Database, Regional Snowfall Index, billion-dollar disasters list, State Climate Extremes Committee and hazard databases, USGS, NIFC, GFZ Potsdam’s Kp index (CC BY 4.0), the National Weather Service in Norman, Oklahoma, and Wikidata (CC0), with article leads from Wikipedia under CC BY-SA 4.0, each credited where it appears. Rebuilt 2026-09-24.