State of the Climate in Asia 2025

The WMO State of the Climate in Asia 2025 reports that ocean heat, which has increased since the 1990s, reached a new record. Marine heatwaves affected almost the entire ocean area of Asia, with over 10 million km2 impacted during July–September – more than the size of People’s Republic of China or the United States of America. Continued ocean warming and acidification pose increasing risks to marine ecosystems and coastal communities.

Extreme heat was a defining feature, with Japan, People’s Republic of China and the Republic of Korea all recording their hottest summer on record. Exceptional monsoon and tropical cyclone-related rainfall caused devastating flooding in many countries, including Pakistan, Sri Lanka and Viet Nam. Stubborn drought hit parts of West Asia, including the Islamic Republic of Iran, as did severe sand and dust storms.

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.