2017–18 South-West Indian Ocean cyclone season

The 2017–18 South-West Indian Ocean cyclone season was a below-average season that produced only 8 tropical storms, of which 6 became tropical cyclones. It was an event in the annual cycle of a tropical cyclone and subtropical cyclone formation. It officially began on 15 November 2017, and officially ended on 15 May 2018, in Mauritius and the Seychelles. For the rest of the basin, the season ended on 30 April 2018. 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. Tropical and subtropical cyclones in this basin are monitored by the Regional Specialised Meteorological Centre in La Réunion.

2017–18 South-West Indian Ocean cyclone season
Season summary map
Seasonal boundaries
First system formed1 January 2018
Last system dissipated1 May 2018
Strongest storm
NameCebile
  Maximum winds185 km/h (115 mph)
(10-minute sustained)
  Lowest pressure940 hPa (mbar)
Seasonal statistics
Total disturbances9, 1 unofficial
Total depressions9
Total storms8
Tropical cyclones6
Intense tropical cyclones3
Very intense tropical cyclones0
Total fatalities108 total
Total damage$326.7 million (2018 USD)
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