The year 2026 is on track to rank as one of the four warmest years since records began, according to data released by the World Meteorological Organization (WMO). The report, unveiled on Monday during the opening of the 31st United Nations climate conference in Antalya, Turkiye, indicates that the preceding four-year period—from 2023 to 2026—collectively represents the hottest duration in historical record-keeping. The findings underscore a persistent trend, with each of the last 12 years consistently ranking among the warmest ever documented.
Data compiled for the first nine months of 2026 reveal that global average surface temperatures were approximately 1.47 degrees Celsius above pre-industrial levels, which are calculated between 1850 and 1900. Experts suggest this figure is likely to climb further before the end of the calendar year, driven largely by the intensification of the El Nino phenomenon. Since August, El Nino has been strengthening and is projected to reach record levels of intensity by December.
WMO Secretary-General Celeste Saulo described the state of the global climate as being "off the charts." She explained that while El Nino does not introduce new heat to the planet, it acts as a "risk multiplier" by releasing vast amounts of energy stored in the oceans, which are currently at their warmest temperatures ever measured. This mechanism is expected to exacerbate weather patterns and potentially unleash further extreme heat and climate-related volatility into 2027.
Beyond atmospheric warming, the report highlighted critical shifts in the earth's natural systems. Global mean sea levels reached a record high in 2026, and sea-surface temperatures consistently set monthly records throughout the year. Additionally, freshwater storage levels have been in a state of consistent decline since 2014. The cryosphere also faced severe impacts; in 2025 alone, glaciers lost more than 400 gigatonnes of ice, an amount equivalent to approximately 1 millimeter of global sea-level rise. To put the scale of this loss into perspective, the WMO noted that this mass of melting ice would have been sufficient to fill five Olympic-sized swimming pools every second for the entire year.
El Nino, a naturally occurring climatic pattern characterized by elevated sea-surface temperatures in the central and eastern equatorial Pacific Ocean, remains a primary driver of these fluctuations. Its influence on global weather patterns is profound, affecting rainfall and temperature distribution across various continents. In the Indian context, the phenomenon is traditionally linked to a weaker monsoon season and more intense summer heat waves.
The current findings provide a stark baseline for delegates attending the UN climate conference. With the 2024, 2023, and 2025 years currently serving as the top three warmest years, the consistent progression of these high-temperature metrics has reinforced calls from the scientific community for urgent international policy intervention. The report emphasizes that without significant action, the trajectory of rising temperatures will continue to pose systemic risks to global environmental stability.
As the conference continues in Antalya, the data serves as a grim reminder of the compounding effects of climate change. The combination of record-high ocean temperatures and declining glacial mass points to a long-term challenge for global climate management. The WMO maintains that addressing these root causes is essential to preventing further escalation in the global average temperature and mitigating the impact of future extreme weather occurrences.
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