In 2024, there were 14 named storms registered in the South Indian Ocean, up by one storm in comparison to the previous year. This was down from the average recorded for the basin in the period between 1990 and 2023, at 16 named storms per year. The highest count recorded within the indicated period was in 1994, with a total of 22 named tropical cyclones.
Number of named tropical cyclones in the South Indian Ocean from 1990 to 2024
South Indian Ocean seasons are defined to start on July 1 of the previous year. For example, the 1990 season ran from July 1, 1989, through June 30, 1990.
Tropical cyclones with a wind speed above 39 miles per hour are considered tropical storms and are given a name.
According to the source, figures were calculated by the Colorado State University from the Joint Typhoon Warning Center best tracks as archived in the International Best Track Archive for Climate Stewardship.
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CSU. (February 23, 2025). Number of named tropical cyclones in the South Indian Ocean from 1990 to 2024 [Graph]. In Statista. Retrieved May 21, 2025, from https://www.statista.com/statistics/1298394/number-named-storms-south-indian-ocean/
CSU. "Number of named tropical cyclones in the South Indian Ocean from 1990 to 2024." Chart. February 23, 2025. Statista. Accessed May 21, 2025. https://www.statista.com/statistics/1298394/number-named-storms-south-indian-ocean/
CSU. (2025). Number of named tropical cyclones in the South Indian Ocean from 1990 to 2024. Statista. Statista Inc.. Accessed: May 21, 2025. https://www.statista.com/statistics/1298394/number-named-storms-south-indian-ocean/
CSU. "Number of Named Tropical Cyclones in The South Indian Ocean from 1990 to 2024." Statista, Statista Inc., 23 Feb 2025, https://www.statista.com/statistics/1298394/number-named-storms-south-indian-ocean/
CSU, Number of named tropical cyclones in the South Indian Ocean from 1990 to 2024 Statista, https://www.statista.com/statistics/1298394/number-named-storms-south-indian-ocean/ (last visited May 21, 2025)
Number of named tropical cyclones in the South Indian Ocean from 1990 to 2024 [Graph], CSU, February 23, 2025. [Online]. Available: https://www.statista.com/statistics/1298394/number-named-storms-south-indian-ocean/
