World Meteorological Organization

The last 11 years have been the hottest years ever recorded. Earth’s energy imbalance has reached its highest than at any time in observed history, with heat reaching deeper into the ocean. This is the Global #StateOfClimate 2025. Read: bit.ly/4ds4r2V #WorldMetDay

The Earth’s energy imbalance has reached a new high. In a stable climate, incoming energy from the sun is about the same as the amount of outgoing energy. But increasing greenhouse gas concentrations have upset the equilibrium. 🆕#StateOfClimate 2025: bit.ly/StateOfClimate…

In its latest State of the Global Climate report, @WMO shows that 2015–2025 were the hottest 11 years on record, with heat stress affecting people of all ages on every continent. Workers are especially vulnerable: around one-third of the global workforce (1.2 billion people) is exposed to workplace heat risk each year. Rising temperatures affect health in many ways, increasing fatigue, injuries, dehydration, kidney strain and mental stress. According to @Lancet Countdown data, heat-related deaths have surged by 63% since the 1990s. As a driver of our warming world, climate change also amplifies public health risks such as vector- and water-borne diseases. @WHO works closely with @WMO to address the impacts of climate change on health systems—including extreme heat—by strengthening health facility readiness to cope with higher temperatures. @WHO calls on governments to ensure that heat early warning systems are tailored to the needs of the health sector and that climate information is integrated into health decision-making. Every heat-related death is preventable.

Earth’s climate is more out of balance than ever. The last 11 years have been the hottest on record, with oceans absorbing massive heat, ice melting & extreme weather impacting millions. New @WMO's #StateOfClimate report calls for urgent #ClimateAction: wmo.int/news/media-cen…

As he prepares for a mission aboard the International Space Station, @JAXA_en astronaut and former WMO staff member @AstroMakotoSuwa highlights how science and global cooperation help us understand and protect our planet. #WorldMetDay

📃 Read: bit.ly/StateOfClimate… #StateOfClimate #WorldMetDay

On #WorldMetDay, discover how we’re observing today and protecting tomorrow—from an astronaut in space @JAXA_jp @AstroMakotoSuwa, a round-the-world-racer @Alexia_Barrier, and meteorological observers and schoolchildren in Antarctica. Are you tuned in? 🎥 bit.ly/4uB9ZhE

#WorldMetDay 🔴 LIVE NOW: bit.ly/4uB9ZhEqq

Earth’s climate is “more out of balance than at any time in observed history” as global warming speeds up, @WMO warns. news.un.org/en/story/2026/…

As WMO unveils the Global #StateOfClimate 2025, @UN Secretary-General @antonioguterres calls for urgent action grounded in science. 📕Read the report: bit.ly/StateOfClimate… 📽️UNSG's full message: youtu.be/iijVBQbm3jg

Today is World Meteorological Day 🌍 Only by observing today can we protect tomorrow. Be part of #WorldMetDay—and explore the findings of the WMO Global #StateOfClimate 2025. 🔴 LIVE at 1500 CET: bit.ly/4uB9ZhE 🎧 Live interpretation in all @UN official languages

Speech of His Excellency Dr. Abdullah Al Mandous, President of @WMO, on the occasion of World Meteorological Day. كلمة سعادة الدكتور عبدالله المندوس، رئيس المنظمة العالمية للأرصاد الجوية، بمناسبة اليوم العالمي للأرصاد الجوية. youtube.com/watch?v=KCSrKR…

According to @WMO, climate-related disasters increased 5x between 1970 and 2019. Economic losses increased by a factor of 7. Climate information and early warning systems are key to reducing risks, saving lives and protecting assets. UNDP is working with partners in 40+ countries to scale them up - learn how: climatepromise.undp.org/news-and-stori… #WorldMetDay

Today we're celebrating #WorldMetDay. This day marks the creation of @WMO & celebrates the global cooperation it enables. By exchanging observational data with other nations we help communities make decisions that safeguard livelihoods & save lives. More: ow.ly/w8N050Yw948

Climate chaos is rewriting the rules of weather, with record heat, longer droughts, rising seas & ever more frequent & extreme disasters. Accurate, trusted science is our first line of defence. Foresight save lives. We must accelerate Early Warnings for All so that every person is protected by life-saving alerts.

How do countries across the globe observe today to protect tomorrow? Here's how Romania's National Meteorological Administration does it. Join us tomorrow for #WorldMetDay! 23 March 2026, 15:00 CET 🔴LIVE: bit.ly/40JdGV2

"On this #WorldMetDay, we are reminded that foresight saves lives." 1⃣ day to go! Read @UN Secretary-General @antonioguterres full message: bit.ly/4snE6b7

🌏Forecasts depend on access to 24/7 global observations. Yet many stations in least developed and & small island developing states are non-operational or reporting inconsistently. We must bridge this gap. Join us tomorrow for #WorldMetDay. Get involved. 🔴bit.ly/40JdGV2

Ahead of #WorldMetDay, @SMN_Argentina highlights the importance of meteorological observations as "fundamental basis for anticipating events, reducing risks and protecting society." Watch this! bit.ly/WorldMetDay26

This upcoming #WorldMetDay, we’re celebrating meteorologists, observers, forecasters, and experts behind the observations, forecasts and early warnings that save lives. 2⃣ days to go! 📹WMO SG Celeste Saulo’s message: bit.ly/4cTFr4t