Media Advisory

3 September 2026 - WMO El Niño Update

Release of WMO El Niño Update, a quarterly analysis analysis of the current conditions and evolution of the status of the El Niño-Southern Oscillation phenomenon. It provides authoritative information for decision-making based on a consensus of models from WMO Global Producing Centres, experts from National Meteorological and Hydrological Services and climate prediction centres around the world.  

Press conference 1000 CEST (0800 GMT) with WMO Secretary-General Celeste Saulo will be broadcast by UN WebTV.

Materials will be distributed under embargo.  

7 September 2026 - WMO Air Quality and Climate Bulletin

WMO Air Quality and Climate Bulletin, which reports annually on the state of air quality and  links to climate. It reflects 2025 trends in the geographical distribution and levels of pollutants such as wildfire smoke and ozone. Released for International Day of Clean Air for Blue Skies.

Materials will be distributed under embargo.  

16 September 2026 - WMO Ozone and UV Bulletin

WMO Ozone and UV Bulletin, an annual scientific update on the health of the ozone layer and UV radiation trends, highlighting recovery progress, challenges, and the crucial need for continued monitoring and policy action. Released for World Ozone Day.  

Materials will be distributed under embargo.  

17 September 2026 - WMO State of Global Water Resources 2025 report

WMO State of Global Water Resources 2025 report, providing an overview of the water cycle, including precipitation and water-related extremes, long-term trends in rivers, reservoirs, lakes, groundwater, and glaciers.  

Press Conference with WMO Secretary-General Celeste Saulo at 1400 CEST (1200 GMT) will be broadcast by UN WebTV.

Materials will be distributed under embargo.  

WMO activities at the 81st session of the UN General Assembly

Details to follow.