The 2015–16 South-West Indian Ocean cyclone season is an event in the annual cycle of tropical cyclone formation. It began on 15 November 2015, and will end on 30 April 2016, with the exception for Mauritius and the Seychelles, for which it will end on 15 May 2016. These dates conventionally delimit the period of each year when most tropical cyclones form in the region. The basin is defined as the area west of 90°E and south of the Equator in the Indian Ocean, which includes the waters around Madagascar westward to the east coast of Africa. Tropical cyclones in this basin are monitored by the Regional Specialised Meteorological Centre in Réunion.


Tropical cyclone scales#Comparisons across basins


Severe Tropical Storm Adam

Severe tropical storm (MFR)
Category 1 tropical cyclone (SSHWS)
STC Adam 19 November.jpg
Duration 18 November – 20 November
Peak intensity 100 km/h (65 mph) (10-min)  988 hPa (mbar)

Tropical Cyclone Benda

Tropical cyclone (MFR)
Category 2 tropical cyclone (SSHWS)
TC Benda Cat 2 24 November 2015.jpg
Duration 22 November – 26 November
Peak intensity 130 km/h (80 mph) (10-min)  982 hPa (mbar)

Severe Tropical Storm Clyde

Severe tropical storm (MFR)
Tropical storm (SSHWS)
Clyde 26 November 2015.jpg
Duration 22 November – 27 November
Peak intensity 95 km/h (60 mph) (10-min)  991 hPa (mbar)