World Meteorological Day takes place every year on 23 March, commemorating the date in 1950 when the Convention establishing the World Meteorological Organization came into force. 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.
This year, World Meteorological Day and World Water Day share the theme, Climate and Water. The focus is on managing climate and water in a more coordinated and sustainable manner because they are inextricably linked. Both lie at the heart of the global goals on sustainable development, climate change and disaster risk reduction.
On 23 March 2020, WMO and UN-Water will celebrate together World Meteorological Day and World Water Day - which falls officially on 22 March - together at an event at WMO headquarters in Geneva, Switzerland.