The World Meteorological Organization is the UN's voice on weather, climate, and water resources, providing scientific insights into our atmosphere and climate behavior.

Overview WMO is the United Nations system's authoritative voice on the state and behaviour of the Earth's atmosphere, its interaction with the land and oceans, the weather and climate it produces and …

Again. Geneva, 15 November (WMO) - The abundance of heat-trapping greenhouse gases in the atmosphere once again reached a new record last year and there is no end in sight to the rising …

Dec 2, 2025 · Knowledge Hub Explore the new Knowledge Hub: the scientific core of the WMO Community. A central place for WMO Members, partners and experts to find technical information, …

Dec 4, 2025 · WMO publishes the Global and Regional State of the Climate reports, the State of Climate Services reports, is involved in leadership capacity in the Global Framework for Climate Services, …

At WMO, we are dedicated to fostering international cooperation and coordination around the state and behaviour of the Earth’s atmosphere, its interaction with the land and oceans, the weather and …

Dec 4, 2024 · WMO presides over the World Weather Information Service, which presents weather observations, weather forecasts and climatological information for selected cities supplied by …

The 150th Anniversary of Meteorological Services in Japan - A 150-Year Journey: Preventing Disasters for a Better Future -

Our Mandate We advance meteorological science for a better future for all. WMO provides the framework for international cooperation to advance meteorological, climatological, hydrological, and …

Nov 6, 2025 · Climate change is the term used to describe changes in the state of the climate that can be identified by changes in the average and/or the variability of its properties and that persists for an …