Copernicus Confirms April 2025 as Second Warmest April Globally
April 2025 has been recorded as the second warmest April globally, according to data shared by the Copernicus Services of the European Centre for Medium-Range Weather Forecasts (ECMWF).
The Earth’s average temperature in April 2025 was 1.51°C above the 1850–1900 pre-industrial average. This makes April 2025 the second warmest April on record, following April 2024.
“April 2025 was 0.07°C cooler than the record April of 2024, and 0.07°C warmer than the third warmest of 2016,” reads the press release by Copernicus Services.
The press release also notes that, “The 12-month period of May 2024 – April 2025 was 0.70°C above the 1991-2020 average, and 1.58°C above the pre-industrial level.”
The year 2024 was the warmest on record, surpassing the previous record set in 2023 and setting an unprecedented global average temperature. It also became the first year in recorded history to exceed 1.5°C above pre-industrial levels, thereby breaching the symbolic threshold set by the Paris Agreement.
Although the 2015 Paris Agreement’s goal of limiting global warming to 1.5°C is a long-term collective target, the persistently high and rising global average temperatures have heightened alarm. The world’s most vulnerable regions are urgently calling for concrete action to address the escalating consequences of global warming and climate change.
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Data from the Copernicus Climate Change Service (C3S)’s ERA5 climate monitoring system—one of six international datasets used by the World Meteorological Organization—shows that April 2025 marked the 21st month out of the past 22 in which the global mean temperature exceeded 1.5°C above pre-industrial levels. As more months continue to breach this critical threshold, it becomes increasingly clear that the world is drawing closer to permanently exceeding the 1.5°C limit set to avoid the worst impacts of climate change.
“Globally, April 2025 was the second-hottest April on record, continuing the long sequence of months over 1.5ºC above pre-industrial.”
Says Samantha Burgess, Strategic Lead for Climate at ECMWF
