What the record says
Grant was a cyclone in the South-West Indian basin that lasted about 24 days, from 14 December 2025 to 7 January 2026. Its peak was Category 4 (119 kt) on 29 December 2025, with a 1-minute sustained wind of 119 kt (137 mph, 220 km/h). Its lowest recorded pressure was 940 hPa. It is a provisional record and may change.
- Category 4peak intensity
- 119 ktpeak wind (137 mph)
- 940 hPalowest pressure
- 24 dayslifetime
Source of the peak wind: US operational TC Vitals (provisional). The regional forecast centre (RSMC La Reunion (Meteo-France)) gave a peak of 110 kt on its own averaging convention (10-minute winds), so the two figures differ.
It has its own page because it reached category 4 or stronger.
This page gives the official record's figures. It does not describe the human cost of the storm, which is far larger than any wind speed or pressure here.
Where it came ashore
- 7 January 2026: Madagascar (23 kt)
A landfall here is the first tropical position over land after time at sea, so it is within about six hours of the real event. The record shows up to 8.
Countries it came within 50 km of
Strongest effect first.
How to read this track
The line joins the storm's six-hourly positions with straight lines, coloured by its intensity at each point, so it shows how the storm strengthened and weakened. The real path curved between the positions. A dashed grey stretch means the storm had become post-tropical. Records before the satellite era (about the 1960s) are estimates.
Source: NOAA NCEI IBTrACS, public domain. See data sources and caveats.
Other notable storms of the 2026 South-West Indian season
- Horacio (2026)Category 5
- Dudzai (2026)Category 4
- Fina (2026)Category 3
- Fytia (2026)Category 3
- Gezani (2026)Category 3
Other notable storms near Australian Indian Ocean Territories
- Gillian (2014)7 March 2014 to 28 March 2014, peak Category 5 (140 kt), 927 hPa
- Adeline:juliet (2005)1 April 2005 to 16 April 2005, peak Category 4 (125 kt), 905 hPa
- Harriet:heather (1992)24 February 1992 to 8 March 1992, peak Category 4 (120 kt), 930 hPa
- Kirsty (1985)1 March 1985 to 19 March 1985, peak Category 4 (115 kt), 920 hPa
- Neville (2024)7 March 2024 to 25 March 2024, peak Category 4 (115 kt), 948 hPa