August was world’s joint-hottest month on record, scientists say
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Extreme weather and climate-related disasters raged around the world in August.
PHOTO: REUTERS
- August tied with July 2023 as the joint-hottest month on record, with global temperatures exceeding 1.5°C above pre-industrial levels, marking a significant climate milestone.
- Extreme weather events like wildfires, floods, and droughts surged globally, severely impacting Europe and Asia, highlighting society's vulnerability to climate change effects.
- The UN warns the 1.5°C Paris Agreement target is likely unattainable, urging faster CO2 emission cuts as El Nino may drive temperatures even higher soon.
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BRUSSELS – The world just experienced its joint-hottest month since records began, with August pushing the planet’s average global temperature to more than 1.5 deg C above pre-industrial levels, the European Union’s Copernicus Climate Change Service (C3S) said on Sept 10.
Extreme weather and climate-related disasters raged around the world in August.
Scientists have said climate change likely played a role in the landslides and flash floods that killed hundreds in Nepal and China’s Tibet, although the specifics are still being studied. Wildfires surged from Indonesia to Greece to Belgium, while severe drought struck Hungary and Romania.
Temperatures of more than 1.5 deg C above pre-industrial times are significant because that temperature, when measured as a decades-long average, is the level of warming nearly 200 countries vowed to try to prevent under the 2015 Paris climate agreement, in order to avoid the worst consequences of climate change.
August was the first month since November 2025 in which the world’s average temperature exceeded 1.5 deg C above pre-industrial levels.
With an average global surface air temperature of 16.96 deg C, August tied with July 2023 as the world’s warmest month on record. This was 1.65 deg C hotter than the planet’s average temperature in the 19th century, before humans started burning oil, coal and gas on an industrial scale, C3S said.
Emissions from burning these fossil fuels are the main cause of climate change.
“We’ve really seen the impact across Europe of how maladapted we are, with roads melting, train lines buckling, schools closing, hospitals completely overwhelmed and record wildfires for the time of year,” said Samantha Burgess, strategic lead at the European Centre for Medium-Range Weather Forecasts.
“The narrative around climate change has really transitioned from being quite an abstract concept that happens in a faraway place, to disrupting our daily lives,” she said.
The data confirmed Western Europe is emerging from its hottest summer ever recorded, with many regions suffering unusually low river flows and soil moisture – adding to farmers’ woes, after a succession of extreme heatwaves since May ravaged crops.
Another 1.5 deg C breach
The world has not yet technically breached the Paris Agreement’s 1.5 deg C target – which refers to an average temperature over decades, rather than a temporary peak. Currently, the world’s long-term warming level is about 1.4 deg C above pre-industrial levels.
The UN said last week that sticking to the long-term 1.5 deg C goal is no longer possible. It urged governments to cut CO2 emissions faster, to limit overshooting the target.
C3S’ records go back to 1940, and are cross-checked with global temperature records going back to 1850.
The extreme heat in August was not limited to land. The world’s oceans outside of the polar regions also recorded their joint-highest sea surface temperature for any month on record, C3S said.
In the tropical Pacific, record-high temperatures were fuelled by the formation of the El Nino weather pattern, which is forecast to strengthen in the coming months – potentially pushing up global temperatures further. REUTERS
