World Meteorological Day

World Meteorological Day is an international observance held annually on March 23 to highlight the importance of meteorological services to society and the role of meteorological science. The day aims to raise awareness about issues such as climate change, air quality, and natural disasters, and to promote the development of early warning systems.

World Meteorological Day was established to commemorate the entry into force of the Convention establishing the World Meteorological Organization (WMO) in 1950. In connection with the organization’s 75th anniversary, the initiative “Early Warnings for All” was launched to expand global access to early warning services and to strengthen protection against hazardous weather events.

World Meteorological Day is celebrated each year under a specific theme. The 2025 theme, “Closing the Early Warning Gap Together,” focuses on improving the effectiveness of early warning systems, strengthening communication infrastructure, and enhancing public awareness.

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Worldwide, meteorological services operate through extensive observation networks. Early warning systems aim to deliver meteorological information quickly and effectively to relevant institutions and the public. Their importance has grown in the 21st century due to the increasing frequency of natural hazards such as tropical cyclones, heavy rainfall, storms, droughts, and forest fires.

The World Meteorological Organization (WMO) and its member countries coordinate at national and international levels to develop early warning systems and share meteorological data. The WMO-led initiative “Early Warnings for All” seeks to strengthen the capacities of national meteorology and hydrology services, enhance disaster management, and improve societal resilience. This initiative involves cooperation with international donors, climate funds, and development banks, while regional partners and specialized centers provide support and capacity-building. Through these systems, communities are better informed and prepared for natural hazards.

During World Meteorological Day, the contributions of national meteorology and hydrology services to society are highlighted. Activities include seminars, conferences, promotional films, and public awareness programs. In Türkiye, events feature promotional films, musical performances, and updates on recent developments in meteorology. Academics, disaster management officials, and media meteorology editors share experiences on the significance of early warning systems and the effective use of meteorological data.