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.


WMO 2022 Calendar Competition

The 2022 WMO Calendar winners and runners-up have been announced, after WMO's biggest and most successful ever competition with more than 1,100 entries from around the world.

World Meteorological Day 2021 - The Ocean, Our Climate and Weather

When it comes to the weather and climate, most of us think only about what is happening in the atmosphere. If we ignore the ocean, however, we miss a big piece of the picture.

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 Themes

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