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.

Weather-ready, climate-smart

The ever-growing global population faces a wide range of hazards such as tropical cyclone storm surges, heavy rains, heatwaves, droughts and many more. Long-term climate change is increasing the intensity and frequency of extreme weather and climate events and causing sea level rise and ocean acidification. Urbanization and the spread of megacities means that more of us are exposed and vulnerable. Now more than ever, we need to be weather-ready, climate-smart and water-wise. Read more

Previous World Meteorological Days

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