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 …

6 days ago · 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, …

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 …

让我们确保地球相关信息不仅被收集起来，更能为所有人所理解、获取并付诸实践。 WMO秘书长席列斯特·绍罗（Celeste Saulo）教授

Our Mandate WMO facilitates the advancement of Earth system sciences – meteorological, climatological, hydrological and environmental sciences – for a safer, better future for all.

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, resources and updates. …

All Activities WMO’s work involves a wide variety of activities and services, spanning from research to delivery of weather-, climate-, and water-related services.

Dec 22, 2025 · WMO presides over the World Weather Information Service, which presents weather observations, weather forecasts and climatological information for selected cities supplied by …

WMO Members work together to improve the accuracy and reliability of weather forecasts, warnings, and services to protect life and property. They also collaborate on research and development of …