2024–25 South-West Indian Ocean cyclone season

The 2024–25 South-West Indian Ocean cyclone season was tied as the third-busiest season in the South-West Indian Ocean since records began in 1967, and the costliest in the basin, surpassing the 2018–19 season, mostly due to Cyclone Chido. It was an above-average season featuring thirteen named storms (three of them crossed from the Australian region), nine tropical cyclones, six intense tropical cyclones, and only one very intense tropical cyclone. The season began on 15 November 2024 and ended on 30 April 2025, with the exception of Mauritius and the Seychelles, for which it ended on 15 May 2025. These dates conventionally delimit the period of each year when most tropical and subtropical cyclones form in the basin, which is west of 90°E and south of the Equator. However, tropical cyclones can form year-round, with any cyclone forming between 1 July 2024 and 30 June 2025, such as 01, Ancha, and Bheki, being part of the season.

The first system formed before the official start of the season, Tropical Depression 01, but the disturbance failed to organize into a tropical storm and dissipated on 17 August. In late September, Tropical Storm Ancha formed without making landfall, and a month later, three days before the official start of the season, Tropical Storm Bheki formed, which became the first intense tropical cyclone of the season a few days later, leaving heavy rains in the Mascarene Islands. In mid-December, Tropical Storm Chido formed and rapidly intensified into a Category 4-equivalent tropical cyclone two days later, then made landfall on Agaléga North Island. Chido then peaked as a high-end Category 4 equivalent cyclone before weakening down to a Category 3 then eventually to a Category 2 northeast of Madagascar. The cyclone then rapidly intensified back to a Category 4 equivalent cyclone and made landfall on Mayotte, becoming the strongest landfalling cyclone in the island on record. Chido went on to strike Mozambique as a powerful Category 4 equivalent cyclone. Dikeledi formed on 6 January, gradually intensifying over the next four days until making landfalling in Northern Madagascar as a Category 2 equivalent cyclone on 11 January. The cyclone weakened to a tropical storm south of Mayotte before rapidly strengthening back to Category 2 intensity, making landfall near Nacala at that strength on 13 January.

In late January, two tropical cyclones formed; one of them was the moderate Tropical Storm Faida, which brought heavy rainfall to Madagascar on 5 February. After Faida dissipated, Tropical Cyclone Vince entered the basin from the Australian region on 4 February. Four days later, it became the most intense cyclone of the season and the first very intense tropical cyclone since Cyclone Freddy two years before. At 12 February, Vince had transitioned to being extratropical. At the same day, Taliah had entered the basin fluctuating between a moderate tropical storm and a strong tropical storm before becoming a post-tropical cyclone at 18 February. Six days later, Garance and Honde had formed, Garance receiving its name the day after. Garance intensified rapidly into an Intense Tropical Cyclone, making landfall at Réunion at 28 February as a Category 2. Honde brought heavy rainfall to Mozambique and then southern Madagascar as a Category 1. Jude formed as a disturbance south of the Chagos Islands on 6 March. It intensified at 8 March, receiving its name. Ivone entered the basin on 8 March and on the same day intensified to a Moderate Tropical Storm and received its name. Jude made landfall in Mozambique as a Category 1 at 10 March. Courtney from the Australian region entered the basin on 29 March, becoming an intense tropical cyclone. After nearly a month of inactivity, Subtropical Storm Kanto was named on 20 April, reaching a peak intensity of 75 km/h (10 minute sustained) winds with a central pressure of 993 hPa. This was the first subtropical storm to receive such a designation from Meteo France, which introduced the category beginning with this cyclone season.