State of the Climate in the South-West Pacific 2025
- 2025 was the 2nd warmest year on record for the South-West Pacific region
- Marine heatwaves disrupted ecosystems and fisheries
- Indonesia's last tropical glacier is just 2% of its 1988 size, may disappear in 2026
- Rare tropical cyclone killed more than 1,200 people in Indonesia and Malaysia
- Early warnings and early action save lives, but critical coordination and capacity gaps remain
The State of the Climate in the South-West Pacific 2025 report documents how the region had its second warmest year on record (behind 2024), with extreme weather causing widespread disruption, economic damage, and loss of life. The deadliest single event was Cyclone Senyar, the first known system to reach tropical cyclone intensity in the Strait of Malacca, which impacted more than 10 million people in Indonesia and Malaysia and killed more than 1 200.
In 2025, the remaining tropical ice cover in Papua, Indonesia, was estimated to be only about 2% of the ice area observed in 1988. The last remaining tropical glacier of the region is expected to disappear by the end of 2026 or early 2027, according to the report.
Explore the findings in the interactive story map below and learn more about the global climate in the WMO State of the Global Climate 2025.
State of the Climate in the South-West Pacific 2025 - Video
Other resources
Regional Datasets and Methods
Key Climate Indicators: South-West Pacific
Extreme Weather Events 2025
User Survey
About the State of the Climate in the South-West Pacific series
The WMO State of the Climate in the South-West Pacific report series provides an annual overview of the region’s changing climate and its far-reaching impacts. Each report highlights key trends in temperature and precipitation, offering insight into how long-term warming and rainfall patterns are evolving. It also tracks extreme weather events such as tropical cyclones, droughts, floods, and heatwaves, which are becoming more frequent and intense due to climate change.
