The United Nations Office at Geneva
Multimedia Newsroom
Temperatures off the charts, but more records are to come: WMO
Global sea surface temperatures reached a record high in May, June and July – and the warming El Niño weather pattern is only just getting started - experts at the UN World Meteorological Organization (WMO) said on Monday.
Alarm bells have been at the UN agency in particular because of an “unprecedented peak” in sea surface temperatures in the North Atlantic.
“The first week of July…could be considered as the warmest period or the warmest week ever recorded,” – with a global average temperature close to 17.24 degrees Celsius on 4 and 7 July, said Omar Baddour, Chief of Climate Monitoring at WMO.
The WMO expert added that daily June temperatures in the North Atlantic had been “dramatically high” compared to usual readings, while Antarctic sea ice levels reached their lowest extent for June since satellite observations began.
At a shocking 17 per cent below average, this year’s readings broke the June 2022 record by a substantial margin and represented “a really dramatic drop in the sea ice extent in the Antarctica” – some 2.6 million square kilometers of lost sea ice.
Michael Sparrow, Chief of WMO’s World Climate Research Programme, highlighted that “it really is completely unprecedented where this kind of reduction in sea ice that we have seen around the Antarctic. The Antarctic region is normally thought of being relatively stable, it is much colder than the Arctic. We’re used to seeing, these big reductions in the sea ice in the Arctic but not in the Antarctic.”
Beyond Antartica, the UN agency warned that the “marine heatwave” would also impact fisheries distribution and ocean ecosytems, with knock-on effects on the climate. It is not only the surface temperature of the water, but the whole ocean is becoming warmer and absorbing energy that will remain there for hundreds of years, explained WMO.
“When you have a tropical cyclone, everything is affected in the shores, including fisheries, but also including inland”, said Mr. Baddour. “With heavy precipitation that could lead to casualties, displacement of populations, and so on. So, if we say that it is a dramatic change, that also means dramatic likelihood of extreme weather and climate events.”
Just last week, WMO announced the onset of El Niño, characterized by a warming of the Pacific Ocean. Combined with man-made greenhouse gas effect, the weather pattern is expected to make one of the next five years the warmest on record.
The WMO officials told journalists in Geneva that “we are in uncharted territory and we can expect more records to fall as El Niño develops further”, with impacts extending into 2024.
“During El Niño year you get higher temperatures in the atmosphere as well, because heat is moving from the oceans to the atmosphere,” said Mr. Sparrow. “We are actually at the beginning of that process, so El Niño hasn’t had as much of an effect as it is going to later in the year. So, we’re seeing these high temperatures in the North Atlantic…despite the fact that El Niño hasn’t really got going yet. So, we can expect much higher temperatures from the El Niño in the latter half of the year, so around October and November time.”
According to the WMO’s Mr. Baddour, the warmest year is expected to be after this year, when El Niño 2023-2024 is expected to pick up and the weather reach a record year in 2024 if the strength of El Niño continues to develop in line with forecasts.
-ends-
- Exterior medium shot: UN Palais with flags
- Wide shot: press conference room
- SOUNDBITE (English) – Omar Baddour, Chief of Climate Monitoring at WMO: “The first week of July, starting from the 4th to the 7th, could be considered as the warmest period or the warmest week ever recorded.”
- Medium shot: photographer taking pictures at the press conference
- SOUNDBITE (English) – Omar Baddour, Chief of Climate Monitoring at WMO: “Daily June temperature in the North Atlantic, as you can see, is dramatically high compared to the past behavior of that area. So we record an unprecedented peak of temperature in that part of the world.”
- Wide shot: speakers and monitor behind pannel, screen with presentation, monitor in the foreground
- SOUNDBITE (English) – Omar Baddour, Chief of Climate Monitoring at WMO: “2.6 million square kilometers of loss of sea ice compared to the ?? and almost approaching 1.2 million square kilometers below the previous record which was set in 2022. This is a really dramatic drop in the sea ice extent in the Antarctica.”
- Medium shot: attendees taking notes
- SOUNDBITE (English) – Michael Sparrow, Chief of World Climate Research Programme: “It really is completely unprecedented where this kind of reduction in sea ice that we have seen around the Antarctic. The Antarctic region is normally thought of being relatively stable, it is much colder than the Arctic. We’re used to seeing, you know, these big reductions in the sea ice in the Arctic but not in the Antarctic.”
- Medium shot: attendee and moderator
- SOUNDBITE (English) – Omar Baddour, Chief of Climate Monitoring at WMO: “When you have a tropical cyclone, everything is affected in the shores, including fisheries, but also including inland. With heavy precipitation that could lead to casualties, displacement of populations, and so and so. So, if we say that it is a dramatic change, that also means dramatic likelihood of extreme weather and climate event.”
- Close shot: attendee in the foreground and photographer in the background
- SOUNDBITE (English) – Michael Sparrow, Chief of World Climate Research Programme: “During El Niño year you get higher temperatures in the atmosphere as well, because heat is moving from the oceans to the atmosphere. But as you correctly pointed out, we are actually at the beginning of that process, so El Niño hasn’t had as much of an effect as it is going to later in the year. So we’re seeing these high temperatures in the North Atlantic, etc., despite the fact that El Niño hasn’t really got going yet. You know, we can expect much higher temperatures from the El Niño in the latter half of the year, so around October and November time.”
- Medium shot: speakers and monitor behind podium
- Medium shot: attendees taking notes
- Close shot: cameraman
Similar Stories
1
1
1
Press Conferences | OHCHR
Victims Still Waiting: A Global Briefing on Transitional Justice Around the World
2
1
2
Edited News , Press Conferences | WMO
As world’s water reserves change, countries must prepare for a new reality: WMO
New data showing that rivers were at their lowest level for decades last year provides further evidence that the climate crisis is real and countries must act immediately to protect themselves from the increasing threat to communities and livelihoods, the UN World Meteorological Organization (WMO) said on Thursday.
The key findings from WMO’s State of Global Water Resources 2025 report covering the hydrological cycle and extreme events in the five-year period to last year:
- 2025 was one of driest years for river discharge in 35 years
- Past seven years have seen abnorfmal river flows
- Water storage on Earth’s land surface has decreased in past decade
- Widespread glacier loss across all regions for fourth consecutive year
- Asia and Africa are regions most affected by water-related disasters
- Water data availability has improved, but gaps remain in hard-hit areas
Highlighting the long-term decline in the Earth’s freshwater storage and glacier melt, WMO Secretary-General Celeste Saulo explained that the planet’s water reserves used to act as a planetary “savings account” that absorbed the occasional dry season, avoiding a water crisis. “One of the central stories of the 2025 report is what is happening to that savings account? And the simple answer is that we are depleting it,” she told journalists in Geneva.
Groundwater reserves are equally stretched and have been in decline since 2014, WMO’s report states, with nearly two-thirds of monitored wells worldwide showing levels lower than the historical norm and indicating a shift “further toward deficit…not recovery”.
“At the same time, we are seeing more water-related disasters,” Ms. Saulo said, while also stressing that the currently strengthening El Niño “will increase the risk of drought in some areas, and flooding in others”.
Glaciers disappearing
In 2025, for the fourth consecutive year, every major glaciated region on Earth lost ice mass, leading to short-term hazards including floods and long-term water insecurity, according to WMO.
Responding to a question about whether the changing global water cycle might have contributed to the deadly Nepal-China flooding disaster, Ms. Saulo explained that melting ice and rock was just one factor in the chain of events that ultimately sent a massive and deadly wall of water and debris downstream on 26 August, killing at least 1,367 people.
“You asked if it could happen again? Absolutely; the problem in this region is that there’s 63,700 glaciers at the last count,” she told a Press Conference in Geneva. “Even if you’re looking with remote sensing with satellites at these glaciers, you might see some faults, you might see some slight shifting, that does not mean necessarily catastrophic collapse. So, in order to plan for this, it’s very, very difficult. But the international community is looking very hard at ways in which we can bring people together to solve some of these monitoring issues.”
Data indicates that glaciers shrank between 2023 and 2025 with cumulative losses of 1,400 gigatonnes of water – or about one third of annual fresh water needs.
Every major glacier region on Earth lost ice for the fourth consecutive year.
“All 19 glacier regions around the globe lost ice; in Central Asia, Iceland, the Russian Arctic and western Canada and the United States, it was among the three worst years on record,” said Wayne Jenkinson, WMO’s Director of Hydrology and Cryosphere.
Some regions with smaller glaciers such as Central Europe, the Caucasus, the western Canada and the United States may already have reached “peak water”, Mr. Jenkinson warned.
“After this point, the glacier gives less meltwater each year simply because there is less ice left to melt. That matters for every community downstream that relies on water during hot, dry summers,” he explained.
Narelle van der Wel, WMO’s Head of Cryosphere Monitoring, Predictions and Services, stressed that while some further glacier loss is unavoidable, the eventual scale of the decline is not predetermined.
“Some glacier loss is inevitable, but total loss of glaciers is not yet inevitable,” she said, pointing to emissions reductions as central to limiting future losses.
Preparing for moving baselines
The report does not attribute every observed change to climate change alone. WMO says pressure on water resources and natural variability also contribute.
Mr. Jenkinson said governments need to prepare for “moving baselines” as historical patterns become less reliable.
“The situation 30 years ago is not where we are today,” he said. Countries, he added, need to prepare “for those changes that have really already arrived”.
ends
1
1
1
Edited News | OCHA , WHO
The deadly Ebola virus outbreak in DR Congo continues to spread across the vast country despite some success in containing it, aid officials said on Tuesday, in a renewed call for international support to help responders on the ground.
1
1
1
Press Conferences | WMO , OCHA , WHO , UNICEF , UN WOMEN , OHCHR , IOM , UNHCR
Update on Ebola from WHO and OCHA, update on the situation of children with the beginning of school in Ukraine from UNICEF, UN Women on the impact of the settlers and restrictions on women and girls in West Bank, OHCHR on the recovery of extensive human remains in Gaza, IOM and UNHCR on the new wave of displacement in Yemen
2
1
2
Press Conferences , Edited News | WFP
‘Super El Niño’ and converging crises worsen hunger in South Sudan and across the region - WFP
South Sudan’s hunger crisis is becoming increasingly catastrophic as violence, extreme weather and dwindling aid leave millions without enough food, the UN World Food Programme (WFP) warned on Tuesday.
1
1
1
Press Conferences | HRC
Update on the human rights situation in Belarus by the UN Group of Independent Experts on the Human Rights Situation in Belarus
1
1
1
Press Conferences | HRC , OHCHR
Update on the human rights situation in Syria by the Independent International Commission of Inquiry on the Syrian Arab Republic
1
1
1
Edited News | UN WOMEN
In war-torn Gaza, a growing number of women-headed households face “impossible decisions” every day, amid ongoing Israeli airstrikes and still-scarce resources, UN humanitarians said on Tuesday.
1
1
1
Press Conferences | UNOG , IOM , UN WOMEN , UNCTAD , WHO , UNECE
IOM Yemen's Western Coast displacement; UN WOMEN on Gaza; UNCTAD Strait of Hormuz disruptions impacts; WHO Ebola logistics in DRC; WHO smoking and infertility; UNECE Data centres and energy.
1
1
1
Edited News | OHCHR , UNOG
UN Human Rights Chief Volker Türk made the following remarks to the Enhanced Interactive Dialogue on the Independent Investigative Mechanism for Myanmar at the 63rd Human Rights Council.
1
Edited News | OHCHR , UNOG
UN Human Rights Chief Volker Türk today delivered an update on the global human rights situation to the 63rdsession of the Human Rights Council in Geneva.
1
1
1
Edited News | WHO
Repeated attacks on humanitarian warehouses put vital medical aid at risk in Ukraine - WHO
A new airstrike overnight damaged one of the main warehouses used by the UN health agency to store humanitarian medical supplies in the Kyiv region, the World Health Organization (WHO) said on Friday. This is the third attack to affect a WHO-used storage in the last three months.