World Meteorological Day

World Meteorological Day

Every 23 March, the World Meteorological Organization commemorates the coming into force of the Convention establishing the World Meteorological Organization on 23 March 1950. 

World Meteorological Day takes place every year on 23 March and commemorates the coming into force on 23 March 1950 of the Convention establishing the World Meteorological Organization. It showcases the essential contribution of National Meteorological and Hydrological Services to the safety and wellbeing of society and is celebrated with activities around the world.  The themes chosen for World Meteorological Day reflect topical weather, climate or water-related issues.


The future of weather, climate and water across generations

Our weather and climate and the water cycle know no national or political boundaries. International cooperation is essential. This philosophy has driven the work of the world’s meteorological community since 1873 and will guide us as we translate science into services for society for present and future generations. 

Previous World Meteorological Days

Since 1961, the World Meteorological Organization has been celebrating World Meteorological Day with a different theme selected for each year. 

Upcoming World Meteorological Day Theme

WMO Executive Council has selected the following themes for the upcoming celebrations of World Meteorological Days...