===January===
===January===
[[File:Dudzai 2026-01-12 0757Z.jpg|thumb|[[Cyclone Dudzai|Cyclone Dudzai]]]]
[[File:Dudzai 2026-01-12 0757Z.jpg|thumb|[[Cyclone Dudzai|Cyclone Dudzai]]]]
So far, six tropical cyclones, [[Cyclone Jenna (2026)|Jenna]], [[2026 North Indian Ocean cyclone season#Deep Depression BOB 01|BOB 01]], [[Cyclone Koji (2026)|Koji]], [[Cyclone Dudzai|Dudzai]], [[2025-26 Australian region cyclone season#Tropical Low 14U|14U]] and [[2026 Pacific typhoon season#Tropical Depression Ada|Ada]], have formed in the month. In addition, two cyclones, [[Cyclone Grant (2025)|Grant]] and [[Cyclone Iggy (2026)|Iggy]], have persisted from [[Tropical cyclones in 2025|the previous year]] into the current year. BOB 01 formed on January 7, making it one of the earliest depressions ever recorded in the basin.
So far, tropical cyclones, [[Cyclone Jenna (2026)|Jenna]], [[2026 North Indian Ocean cyclone season#Deep Depression BOB 01|BOB 01]], [[Cyclone Koji (2026)|Koji]], [[Cyclone Dudzai|Dudzai]], [[2025-26 Australian region cyclone season#Tropical Low 14U|14U]] [[2026 Pacific typhoon season#Tropical Depression Ada|Ada]], have formed in the month. In addition, two cyclones, [[Cyclone Grant (2025)|Grant]] and [[Cyclone Iggy (2026)|Iggy]], have persisted from [[Tropical cyclones in 2025|the previous year]] into the current year. BOB 01 formed on January 7, making it one of the earliest depressions ever recorded in the basin.
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In 2026, tropical cyclones have been forming in seven major bodies of water, commonly known as tropical cyclone basins. Tropical cyclones will be named by various weather agencies when they attain maximum sustained winds of 35 knots (65 km/h; 40 mph). So far, The strongest system was Cyclone Dudzai in the South-West Indian Ocean, which attained a minimum barometric pressure of 937 hPa (27.67 inHg). The accumulated cyclone energy (ACE) index for the year (seven basins combined), as calculated by Colorado State University (CSU), was 21.5 units overall.[1]
Tropical cyclones are primarily monitored by 10 warning centers around the world, which are designated as a Regional Specialized Meteorological Center (RSMC) or a Tropical Cyclone Warning Center (TCWC) by the World Meteorological Organization (WMO). These centers are: National Hurricane Center (NHC), Central Pacific Hurricane Center (CPHC), Japan Meteorological Agency (JMA), Indian Meteorological Department (IMD), Météo-France (MFR), Indonesia’s Meteorology, Climatology, and Geophysical Agency (BMKG), Australian Bureau of Meteorology (BoM), Papua New Guinea’s National Weather Service (PNGNWS), Fiji Meteorological Service (FMS), and New Zealand’s MetService. Unofficial, but still notable, warning centers include the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA; albeit official within the Philippines), the United States’s Joint Typhoon Warning Center (JTWC), and the Brazilian Navy Hydrographic Center.
Global atmospheric and hydrological conditions
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This section is empty. You can help by adding to it. (January 2026)
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North Atlantic Ocean
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Eastern & Central Pacific Oceans
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Western Pacific Ocean
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A tropical depression formed east of the Philippines on 13 January, marking the start of the season.
BOB 01 formed in the Bay of Bengal. It was the first depression of the year in that area.
South-West Indian Ocean
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The season started off when Grant entered the basin on December 27 and rapidly intensified into an Intense Tropical Cyclone. In mid-January, Dudzai formed, and rapidly intensified into an Intense tropical cyclone.
Iggy formed near Indonesia on December 29. Jenna followed suit on 3 January, and Koji formed off the northeast Queensland coast on 10 January. After developing in the Coral Sea and reaching Category 2 intensity, Tropical Cyclone Koji weakened to a tropical low before making landfall between Ayr and Bowen, Queensland, on the morning of 11 January, 2026, where it delivered life-threatening rainfall and flash flooding.
South Pacific Ocean
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A tropical disturbance spotted near American Samoa on December 29, and was designated 04F by FMS.
South Atlantic Ocean
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So far, seven tropical cyclones, Jenna, BOB 01, Koji, Dudzai, 14U, Ada and 15U, have formed in the month. In addition, two cyclones, Grant and Iggy, have persisted from the previous year into the current year. BOB 01 formed on January 7, making it one of the earliest depressions ever recorded in the basin.
There are a total of 7 tropical cyclone basins that tropical cyclones typically form in. In this table, data from all these basins are added.[2]
- ^ a b The wind speeds for this tropical cyclone/basin are based on the Saffir Simpson Scale which uses 1-minute sustained winds.
- ^ a b c d Only systems that formed either before or on December 31, 2026 are counted in the seasonal totals.
- ^ The wind speeds for this tropical cyclone/basin are based on the IMD Scale which uses 3-minute sustained winds.
- ^ a b c Only systems that formed either on or after January 1, 2026 are counted in the seasonal totals.
- ^ The wind speeds for this tropical cyclone are based on Météo-France, which uses wind gusts.
- ^ Iggy formed in December 2025, but was named in January 2026
- ^ The sum of the number of systems in each basin will not equal the number shown as the total. This is because when systems move between basins, it creates a discrepancy in the actual number of systems.
Regional Specialized Meteorological Centers
Tropical Cyclone Warning Centers
Other Warning Centres
