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World Meteorological Organization - Official United Nations' authoritative voice on weather, climate and water, scientific organization

13/09/2026

🔥 Extreme wildfires are increasing around the world. The threats to our health and ecosystems are growing too.

𝗪𝗵𝗮𝘁 𝗱𝗼𝗲𝘀 𝘄𝗶𝗹𝗱𝗳𝗶𝗿𝗲 𝘀𝗺𝗼𝗸𝗲 𝗱𝗼 𝘁𝗼 𝗼𝘂𝗿 𝗯𝗼𝗱𝘆?

When wildfire smoke is inhaled, it triggers body-wide inflammation and oxidative stress, which weakens the lungs’ ability to filter foreign particles.

A study cited in the WMO Air Quality and Climate Bulletin links wildfire smoke exposure to an increase in asthma attacks, hospitalization from chronic obstructive pulmonary disease, and use of respiratory medication. It is also linked to have negative effects on mental health and birth outcomes.

Read the WMO Air Quality and Climate Bulletin to learn more about the state of air quality globally and how it is connected with our climate and our health.

📰 https://bit.ly/WMOAirBulletin2026

12/09/2026

Pacific island countries and territories are coming together to build a weather-ready Blue Pacific 🏝️

Across the Pacific, growing risks from extreme weather, climate change and water-related hazards are placing increasing pressure on communities, ecosystems and economies.

The Pacific Meteorological Council, in partnership with WMO and the Secretariat of the Pacific Regional Environment Programme - SPREP, is meeting for its 8th session (PMC-8) in Nuku'alofa, Tonga. Meteorological leaders and partners from 26 Pacific Island Countries and Territories convene to strengthen the weather, climate and hydrological services people rely on to anticipate hazards, prepare and act.

The council is focusing on the Pacific Islands Meteorological Strategy 2027–2036, which will help set the direction for the region's weather, climate, water and ocean services over the next decade.

A weather-ready Pacific not only means having robust forecasting and warning systems and infrastructure, but also having the capacity, skills, partnerships and long-term support needed to keep services working.

Being weather-ready also means making sure that reliable, actionable information reaches people in time, so that they can make decisions that protect lives, livelihoods and development.

PMC-8 will inform the Fourth Pacific Meteorological Ministers Meeting next week, where Pacific ministers will consider priorities and provide high-level direction for the region's next steps.

11/09/2026

Several positions are currently open at the World Meteorological Organization. Apply now!

𝐂𝐡𝐢𝐞𝐟, 𝐏𝐫𝐨𝐠𝐫𝐚𝐦𝐦𝐞 𝐚𝐧𝐝 𝐎𝐩𝐞𝐫𝐚𝐭𝐢𝐨𝐧𝐬, 𝐏𝟓
Climate Risk & Early Warning Systems (CREWS) Initiative Secretariat
Geneva, Switzerland
Apply by 17 September
https://bit.ly/4A1RlT0

𝐏𝐫𝐨𝐠𝐫𝐚𝐦𝐦𝐞 𝐎𝐟𝐟𝐢𝐜𝐞𝐫 - 𝐏𝐨𝐥𝐢𝐜𝐲 𝐚𝐧𝐝 𝐄𝐱𝐭𝐞𝐫𝐧𝐚𝐥 𝐑𝐞𝐥𝐚𝐭𝐢𝐨𝐧𝐬, 𝐏𝟒
Climate Risk & Early Warning Systems (CREWS) Initiative Secretariat
Geneva, Switzerland
Apply by 17 September
https://bit.ly/3UYrCe0

𝐖𝐨𝐫𝐤 𝐏𝐫𝐨𝐠𝐫𝐚𝐦𝐦𝐞 𝐎𝐟𝐟𝐢𝐜𝐞𝐫, 𝐏𝟒
Group on Earth Observations (GEO) Secretariat
Geneva, Switzerland
Apply by 4 October
https://bit.ly/4yvWrFD

𝐀𝐬𝐬𝐨𝐜𝐢𝐚𝐭𝐞 𝐒𝐜𝐢𝐞𝐧𝐜𝐞 𝐎𝐟𝐟𝐢𝐜𝐞𝐫, 𝐏𝟐 (𝐈𝐧𝐢𝐭𝐢𝐚𝐥 𝐩𝐞𝐫𝐢𝐨𝐝 𝐨𝐟 𝟒 𝐦𝐨𝐧𝐭𝐡𝐬)
Cryosphere Monitoring, Prediction and Services Unit
Geneva, Switzerland
Apply by 16 September
https://bit.ly/4xEWYF3

𝐈𝐧𝐭𝐞𝐫𝐧𝐬𝐡𝐢𝐩
Division of Development Partnerships and Programme Delivery
Geneva, Switzerland
Apply by 22 September
https://bit.ly/3VhK6Gq

𝐈𝐧𝐭𝐞𝐫𝐧𝐬𝐡𝐢𝐩
Linguistic Support and Production
Geneva, Switzerland
Apply by 7 October
https://bit.ly/4xixA7d

Check out the WMO recruitment platform for all open vacancies: https://bit.ly/4xc7MJA

10/09/2026

August 2026 was the world’s warmest month on record, tied with July 2023. According to the latest data from Copernicus Climate Change Service, it was also the warmest summer ever recorded in Western Europe.

🌡️ Global average surface air temperature was 1.65°C higher than pre-industrial levels
🌡️ Average sea surface temperatures globally excluding polar regions was the joint highest on record, along with March 2024.
🌡️ Record high sea surface temperatures recorded across the tropical Pacific as El Nino intensifies

Read more from Copernicus: https://bit.ly/46fKLL4

As El Niño strengthens, shifts in global temperature and rainfall patterns are expected to become even more pronounced in the coming months — with impacts likely to be felt across regions around the world.

09/09/2026

The powerful 2023/2024 El Niño contributed to 2024 being the warmest year on record. We should not be surprised if this record is broken. The intensifying El Niño will deliver a major blow to communities, economies and supply chains worldwide.

But its effects vary according to location and season, and can be modified by other climate drivers like the conditions in the Indian and Atlantic Oceans.

WMO's global seasonal climate update brings together information about El Niño and other major climate drivers, enabling a more refined picture of expected conditions globally.

For official warnings and climate information for your region, always follow updates from your National Meteorological & Hydrological Services.

🔗 bit.ly/4zUk77Y

08/09/2026

Sea surface temperatures across the central-eastern equatorial Pacific (Niño 3.4 region)— the region at the heart of El Niño—are already well above average and are continuing to rise.

The widely used Niño 3.4 index which measures sea surface temperature anomalies in the region has shown this development:
🟡 May-July 2026: +1.5 °C above normal
🟠 July 2026: +2.0 °C above normal
🔴 Late July to mid-August 2026: +2.2 °C to +2.6 °C above average (weekly values)

Underwater, temperatures were even warmer, reaching more than 8°C above average during July and early August in some areas.

𝗪𝗵𝗮𝘁 𝘁𝗼 𝗲𝘅𝗽𝗲𝗰𝘁 𝗳𝗼𝗿 𝘁𝗵𝗲 𝗻𝗲𝘅𝘁 𝘁𝗵𝗿𝗲𝗲 𝗺𝗼𝗻𝘁𝗵𝘀?
Multi-model ensemble forecasts indicate that stronger El Niño conditions will further strengthen, with sea surface temperature anomalies in the Niño 3.4 region expected to reach approximately +3.6°C. It is expected to peak in November-December 2026.

A positive phase of the Indian Ocean Dipole is also expected to develop, reaching a mean value of 0.9°C during September- November 2026. Meanwhile, the equatorial Atlantic basin is forecast to remain generally warm with above normal sea surface temperatures. These conditions may reinforce, weaken or alter typical El Niño impacts in different regions.

𝗪𝗵𝗮𝘁 𝗵𝗮𝗽𝗽𝗲𝗻𝘀 𝗼𝘂𝘁𝘀𝗶𝗱𝗲 𝘁𝗵𝗲 𝗰𝗲𝗻𝘁𝗿𝗮𝗹-𝗲𝗮𝘀𝘁𝗲𝗿𝗻 𝗲𝗾𝘂𝗮𝘁𝗼𝗿𝗶𝗮𝗹 𝗣𝗮𝗰𝗶𝗳𝗶𝗰?
El Niño can reshape weather and climate patterns even thousands of kilometres away from the tropical Pacific. This map shows the global sea surface temperature anomaly forecast for September-November 2026.

National Meteorological and Hydrological Services remain the authoritative source of official warnings and relevant climate information in your region.

Read more: https://bit.ly/4x1LoCD

07/09/2026

Today is .

But findings of the 🆕 WMO Air Quality & Climate Bulletin show that an increase in pollution from wildfires and heatwaves could slow efforts to improve air quality and protect human and ecosystem health.

The bulletin highlights the complex interlinkages between air quality and climate. It shows the negative impacts to human health and the environment of air pollutants such as fine particulate matter, and ground-level ozone, aerosol like black carbon and microplastics.

Explore the WMO scientific community’s findings on:
🔍 Global particulate matter concentrations in 2025
☁️ Aerosol–cloud interactions
🔥 Wildfire emissions and global health
🔬 Microplastics
🌡️ Heatwaves and ground-level ozone pollution

Learn more: bit.ly/3UBN1cV

Download this edition: library.wmo.int/idurl/4/69953

06/09/2026

𝗔 𝘃𝗲𝗿𝘆 𝘀𝘁𝗿𝗼𝗻𝗴 𝗘𝗹 𝗡𝗶𝗻̃𝗼 𝗱𝗼𝗲𝘀 𝗻𝗼𝘁 𝗺𝗲𝗮𝗻 𝘁𝗵𝗲 𝘀𝗮𝗺𝗲 𝗶𝗺𝗽𝗮𝗰𝘁𝘀 𝗲𝘃𝗲𝗿𝘆𝘄𝗵𝗲𝗿𝗲.

El Niño and La Niña are among the most powerful naturally occurring influences on the global climate system. A very strong event increases the likelihood of major changes in rainfall, temperatures and atmospheric circulation across many regions of the world.

However, the strength of an El Niño event alone does not determine how severe its impacts will be in any individual country or region. Its effects vary according to location and season and can be modified by other climate drivers, including conditions in the Indian and Atlantic Oceans.

WMO's Global Seasonal Climate Update shows a more refined picture of expected conditions.

𝗦𝗲𝗽𝘁𝗲𝗺𝗯𝗲𝗿–𝗡𝗼𝘃𝗲𝗺𝗯𝗲𝗿 𝟮𝟬𝟮𝟲 𝗳𝗼𝗿𝗲𝗰𝗮𝘀𝘁:
🌡️ Above normal temperatures are expected across almost all land areas.

🌧️ Rainfall patterns show a pronounced and classic atmospheric response to the strong Pacific El Niño: wetter conditions in some regions & drought risk in others.

🌊 A positive phase of the Indian Ocean Dipole (IOD) is also expected to develop, reaching a September-October-November 2026 seasonal mean value of 0.9°C. Meanwhile, the equatorial Atlantic basin is forecast to remain generally warm, with SSTs in both the North and South Tropical Atlantic staying above normal. These conditions may reinforce, weaken or alter typical El Niño impacts in different regions.

Because El Niño can reshape weather and climate patterns thousands of kilometres away from the tropical Pacific, reliable forecasts provide governments, humanitarian agencies, businesses and communities with valuable time to prepare.

WMO Members and partners will continue to closely monitor the evolution of the event and regularly update forecasts of its likely regional impacts.

Learn more: https://bit.ly/4zUk77Y

To the latest WMO Global Seasonal Climate Update: https://bit.ly/4xGp0jm

05/09/2026

Wildfires in Sumatra and Kalimantan, Indonesia, have burned more than 100,000 acres of land. Just days ahead of , observations show that smoke from the fires has traveled much further, crossing borders to neighbouring countries such as Malaysia, Singapore and the Philippines.

Wildfire smoke contains particulate matter and harmful gases that can seriously affect our health. As smoke spreads, air quality can quickly reach hazardous levels, increasing the risk of respiratory problems.

Monitoring fires, forecasting whe re smoke will travel, and issuing timely warnings can help authorities take appropriate measures to protect public health and enable people to reduce their exposure to polluted air.

Click the 🔗 in our bio to explore how WMO coordinates global systems and efforts that help build more resilient communities.

The latest edition of the WMO Air Quality and Climate Bulletin releases on 7 September, . Look out for the latest findings.

04/09/2026

There’s nearly no doubt that the intensifying El Niño will persist through February 2027.

Forecasts from WMO’s Global Producing Centres show that El Nino is expected to continue intensifying into a very strong event in the coming months, peaking towards the end of 2026.

El Niño impacts – including on global temperatures and rainfall patterns – will be felt well into 2027.

𝗪𝗵𝘆 𝗱𝗼𝗲𝘀 𝗶𝘁 𝗺𝗮𝘁𝘁𝗲𝗿?

“The powerful 2023/2024 El Niño contributed to 2024 being the warmest year on record. We should not be surprised if this record is broken,” said WMO Secretary-General Celeste Saulo.

The risks of floods, droughts and extreme weather may multiply and cascade as El Niño becomes stronger.

Climate-sensitive sectors such as agriculture, trade, fisheries, health, energy, transport, water resources, disaster management will be particularly affected.

𝗪𝗶𝗹𝗹 𝗶𝘁 𝗶𝗺𝗽𝗮𝗰𝘁 𝗲𝘃𝗲𝗿𝘆𝗯𝗼𝗱𝘆 𝗲𝗾𝘂𝗮𝗹𝗹𝘆?

No. The strength of an El Niño event alone does not determine how severe its impacts will be in any individual country or region. The location, season and other climate drivers also influence the impacts in a particular area.

National Meteorological and Hydrological Services provide the official warnings and climate information relevant to local communities.

Read our latest update for the expected conditions in different parts of the world 👉 https://bit.ly/4zUk77Y

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