A "super" El Niño is expected to develop this summer, raising the risk of extreme weather events across the globe [1].
This atmospheric shift is significant because it can trigger widespread instability, including severe droughts, heavy rainfall, and record-breaking high temperatures. The phenomenon occurs when warm sea-surface temperatures in the Pacific Ocean alter global atmospheric circulation [2].
The Japan Meteorological Agency and the U.S. National Oceanic and Atmospheric Administration (NOAA) are monitoring the situation closely. According to reports, there is a 62% probability of an El Niño developing between June and August 2026 [3]. This would mark the first super El Niño to occur in roughly 10 years [4].
Meteorologists, including Yuma Matsuura, said that the potential for such an event in the summer months is high [5]. While the global impact is clear, the specific effect on Japan's domestic climate remains a point of contention among experts. Some forecasts suggest that El Niño typically brings cooler summer temperatures to Japan, while other projections indicate that this specific summer may still be extremely hot [6].
These contradictions highlight the complexity of predicting local outcomes during a global climate event. Regardless of the temperature in Japan, the broader pattern of Pacific warming often leads to volatile weather systems that can disrupt agriculture and infrastructure on multiple continents [2].
Experts continue to track the sea-surface temperatures to refine these probabilities. The shift in ocean heat distribution is the primary driver of the phenomenon, which can push rain belts away from their usual positions and create prolonged dry spells in some regions, while flooding others [2].
“A "super" El Niño is expected to develop this summer, raising the risk of extreme weather events across the globe.”
The emergence of a super El Niño after a decade-long gap suggests a period of heightened climatic volatility. Because these events disrupt established weather patterns, governments and agricultural sectors may face increased pressure to implement emergency mitigation strategies for both flooding and drought. The uncertainty regarding Japan's specific temperature trend underscores how global warming may be complicating the traditional predictability of El Niño cycles.
