Abstract
<jats:p>The WMO State of the Regional Climate 2025 reports complement the WMO State of the Global Climate 2025 report by delivering a summarized and consolidated regional assessment of the previous year’s climate conditions. These reports provide authoritative information by updating key climate indicators, listing major regional extreme events, and addressing climate impacts and risks. The reports do not provide climate projections or forecasts, nor do they provide in-depth scientific discussion. They address general information needs of the National Meteorological and Hydrological Services (NMHS), policymakers, scientists and technical experts, media and educators, as well as the public and youth. The reports are produced by WMO in collaboration with NMHSs, international data centres, leading climate research institutions and United Nations partners. For many countries and territories in the South-West Pacific, the ocean is central to livelihoods, economies and resilience. In 2025, the region experienced warming oceans, rising sea levels, marine heatwaves and ocean acidification, alongside tropical cyclones and the continued loss of tropical glacier ice. This report highlights the importance of observations, early warning systems and climate services in helping countries and communities better prepare for climate-related risks.</jats:p>