El Nino breaks Pacific temperature record, signals strong climate impact
In September 2026, the Pacific Ocean experienced unprecedented warming due to an intensifying El Nino event, setting a new record for sea surface temperatures in a critical monitoring region, according to the European Union’s Copernicus Climate Change Service.
Unprecedented Pacific warming warns of strong El Nino
The temperature in the Nino3.4 region—a key zone in the tropical Pacific used to track El Nino cycles—reached a historic high of 29.70°C last month. This exceeds peak levels recorded during major El Nino episodes in 1982/1983, 1997/1998, and 2015/2016, demonstrating the exceptional intensity of the current warming phase.
While this latest record confirms the event’s growing strength, Copernicus experts caution that due to rising base ocean temperatures caused by climate change, comparing current data directly to past El Nino events is complex. Using an adjusted index that accounts for long-term warming trends, they note that the current El Nino has not yet officially surpassed prior strong events. Nevertheless, with the event still developing, its peak is expected to bring further record-breaking conditions.
Global temperature records highlight climate concerns
The strengthening El Nino coincides with a global surge in sea temperatures. Average ocean surface temperatures reached 21.05°C in September, the highest recorded for that month and an increase over the 2023 benchmark. Additionally, global air temperatures ranked September as the second hottest on record, standing 1.63°C above pre-industrial levels.
These figures highlight ongoing challenges to international climate goals established in the 2015 Paris Agreement, which aims to limit warming to well below 2°C and preferably 1.5°C above pre-industrial averages. The United Nations announced in September that the 1.5°C target is likely to be exceeded within a few years.
Carlo Buontempo, director of Copernicus, remarked, “We are in a new run of months above 1.5°C, and with a strong El Nino still intensifying it is likely to last into 2027. Crossing the Paris Agreement’s long-term limit is only a matter of time.” He stressed the urgency of reducing greenhouse gas emissions to minimize how long and how far global temperatures overshoot critical thresholds.
What El Nino means for Pakistan
El Nino events lead to significant changes in weather patterns worldwide, influencing rainfall, droughts, and flooding through shifts in wind and atmospheric pressure over large regions. For Pakistan, which is already vulnerable to climate extremes including drought and unseasonal rains, the current strong El Nino could complicate agricultural planning and water management in 2027.
Pakistan’s economy depends heavily on climate-sensitive sectors, and as global warming intensifies El Nino effects, it becomes critical for policymakers and communities to prepare for increased weather variability. Understanding the severity and trajectory of this event enables better strategies to mitigate its impact on food security and water resources.
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