List of Category 5 South Pacific severe tropical cyclones
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Category 5 South Pacific severe tropical cyclones are tropical cyclones that reach Category 5 intensity on the Australian tropical cyclone intensity scale within the South Pacific basin. They are by definition the strongest tropical cyclones that can form on Earth. A total of 21 tropical cyclones have peaked at Category 5 strength in the South Pacific tropical cyclone basin, which is denoted as the part of the Pacific Ocean to the south of the equator and to the east of 160°E. 20 of these tropical cyclones have been classified as Category 5 on the Australian tropical cyclone intensity scale, while Severe Tropical Cyclone Anne was estimated to be equivalent to a Category 5 on the Saffir–Simpson hurricane wind scale.
The earliest tropical cyclone to be classified as a Category 5 severe tropical cyclone was Hina, which was classified as a Category 5 between March 6 - 7, 1985, as it moved through the Solomon Islands. The latest system to be classified as a Category 5 severe tropical cyclone was Cyclone Niran, which was classified on March 5, 2021, before it made landfall on New Caledonia.