2025–26 Australian region cyclone season: Difference between revisions

 

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{{Infobox tropical cyclone small

{{Infobox tropical cyclone small

| Basin = Aus

| Basin = Aus

| Image = Fina–2025-11-20 0000Z.jpg

| Image = Fina2025-11- .jpg

| Track = Fina 2025 path.png

| Track = Fina 2025 path.png

| Formed = 14 November

| Formed = 14 November

Cyclone season in Australia

The 2025–26 Australian region cyclone season is an ongoing weather event within the southern hemisphere. The season officially started on 1 November 2025 and will end on 30 April 2026, however, a tropical cyclone could form at any time between 1 July 2025 and 30 June 2026 and would count towards the season total. During the season, tropical cyclones will be officially monitored by one of the three tropical cyclone warning centres (TCWCs) for the region which are operated by the Australian Bureau of Meteorology, National Weather Service of Papua New Guinea and the Indonesian Agency for Meteorology, Climatology and Geophysics. The United States Joint Typhoon Warning Center (JTWC) and other national meteorological services including Météo-France and the Fiji Meteorological Service will also monitor the basin during the season.

The season began with a tropical low in TCWC Jakarta‘s area of responsibility on 15 July. It was the first July tropical low in the Australian region since 2022. It moved into the South-West Indian Ocean a day later. Then came a tropical low on 2 August, which dissipated on 5 August. Another tropical low formed on 9 September, meandering around the ocean, and dissipated on 12 September. On 19 October, yet another low formed, but it did not strengthen and it dissipated on 22 October. All three storms were in the TCWC Jakarta’s responsibility. A tropical low formed on 14 November near Indonesia, but dissipated three days later without affecting land. The first tropical cyclone of the season, Fina, formed in the Timor Sea on 18 November. ^{[citation needed]}

Duration	15 July – 16 July (Exited basin)
Peak intensity	55 km/h (35 mph) (10-min); 1003 hPa (mbar)

On 15 July, a low-pressure area that had developed out of an equatorial trough which interacted with the Madden-Julian Oscillation gained better characteristics, thus it was noted as the first tropical low, in the area of responsibility of TCWC Jakarta.^[3] It was the first July tropical low in the Australian region since 2022. As the system slowly intensified in an area of warm SSTs offset by high shear, a TCFA was issued by the JTWC, shortly before the system exited into the South-West Indian Ocean basin on 16 July.^{[citation needed]}

Duration	14 November – Present
Peak intensity	95 km/h (60 mph) (10-min); 985 hPa (mbar)

On 14 November, the Bureau of Meteorology started tracking a low-pressure system near the Timor Sea and designated it as 02U.^[4] On 18 November, the system developed stronger convection and thunderstorm activity.^[5] It intensified into Tropical Cyclone Fina on the same day and remained a compact system.^[6] On 19 November, Fina intensified into a Category 2 cyclone amid warm sea surface temperatures.^[7] A cyclone warning was issued from the Coburg Peninsula to Warruwi, and a cyclone watch was issued for the Tiwi Islands, Maningrida, and Milingimbi Island.^[8] Curved banding was visible early on 20 November as Fina began moving south towards the Top End.^[9] Fina weakened later that day as it continued moving south due to wind shear, and its convection decreased.^[10] It slightly reintensified that evening as it moved towards Darwin.^[11]

• On 2 August, TCWC Jakarta noted an area of low-pressure in the western reaches of the basin. The JTWC also monitored the system, and issued a TCFA on 4 August, citing expected rapid organization but possibility of high wind shear. On 5 August, as the system failed to consolidate, the JTWC cancelled their TCFA.^{[citation needed]}
• On 9 September, a tropical low formed in the TCWC Jakarta region. The JTWC monitored the system as an invest, designating it 93S.^[12]
• On 19 October, The TCWC Jakarta noted an area of low-pressure in the western reaches of the basin. The low-pressure system dissipated on 22 October.^{[citation needed]}
• A tropical low formed on 14 November near Indonesia, but dissipated three days later without affecting land.^{[citation needed]}

The Australian Bureau of Meteorology (TCWC Melbourne) monitors all tropical cyclones that form within the Australian region, including any within the areas of responsibility of TCWC Jakarta or TCWC Port Moresby.^[13] Should a tropical low reach tropical cyclone strength within the BoM’s area of responsibility, it will be assigned the next name from the following naming list. The names that will be used for the 2025–26 season are listed below:

Fina (active) Grant (unused) Hayley (unused) Iggy (unused) Jenna (unused) Koji (unused)

Luana (unused) Mitchell (unused) Narelle (unused) Oran (unused) Peta (unused) Riordan (unused)

TCWC Jakarta monitors Tropical Cyclones from the Equator to 11S and from 90E to 145E. Should a Tropical Depression reach Tropical Cyclone strength within TCWC Jakarta’s Area of Responsibility then it will be assigned the next name from the following list.^[13]

Bakung (unused) Cempaka (unused) Dahlia (unused)

Flamboyan (unused) Kenanga (unused) Lili (unused)

Tropical cyclones that develop north of 11°S between 151°E and 160°E are assigned names by the Tropical Cyclone Warning Centre in Port Moresby, Papua New Guinea. Tropical cyclone formation in this area is rare, with no cyclones being named in it since 2007.^[14] As names are assigned in a random order, the whole list is shown below:

Alu (unused) Buri (unused) Dodo (unused) Emau (unused) Fere (unused)

Hibu (unused) Ila (unused) Kama (unused) Lobu (unused) Maila (unused)

This table lists all of the tropical cyclones and subtropical cyclones that were monitored during the 2025–2026 Australian region cyclone season. Information on their intensity, duration, name, areas affected, primarily comes from RSMC Australia. Death and damage reports come from either press reports or the relevant national disaster management agency while the damage totals are given in 2025 or 2026 USD.