香港天文台表示，正在发展的厄尔尼诺现象可能导致今年有4至7个热带气旋增强为超强台风。天文台还预测，本市周五气温可能达到35摄氏度。
天文台于周四发布了该项预警。天文台指出，当前的厄尔尼诺事件预计将持续到秋季，最晚持续至明年年初。
天文台署理助理台长蔡振荣表示，该现象将导致西北太平洋的热带气旋在更偏东的位置形成。这种偏移增加了风暴在抵达香港前演变为超强台风的可能性。
气象部门还报告称，周四位于尖沙咀的总部气温达到33.4摄氏度。预计周五这一数据可能会被打破，最高气温将达到35摄氏度，若午后出现阵雨，气温甚至可能更高。
在厄尔尼诺和全球变暖的共同影响下，香港很有可能迎来有记录以来最暖的十个年份之一。
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The US National Oceanic and Atmospheric Administration (NOAA) updated its forecasts, estimating a 90% probability of El Niño starting in September 2026 and lasting through the year's final quarter. It raised the May-July projection from 25% in March to 61%. Experts warn of impacts in regions like the Caribbean, Andes, and Orinoquía, including forest fire risks from water deficits and thermal stress.
International weather centers warn of a possible super El Niño between 2026 and 2027. Ideam reports a 61 percent chance the phenomenon will set in between late May and June.
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Hong Kong's Observatory forecasts increasing showers with squally thunderstorms later on Sunday, May 3, heavier in some areas. A cold front sweeping Guangdong's coast will drop temperatures to around 21 degrees Celsius by Monday morning. The public is urged to monitor updates for outdoor plans.
The South African Weather Service forecasts above-normal rainfall for the southeastern and eastern coastal areas during autumn and early winter, while the southwestern regions face below-normal precipitation.
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Tropical Storm Hagupit is expected to enter the Philippine area of responsibility on Saturday and will be locally named Caloy. The state weather bureau said the storm has a high chance of weakening once it reaches the Philippine Sea.
The tropical storm Hagupit may enter the Philippine area of responsibility between Saturday evening and Sunday morning, according to the state weather bureau. Once inside, it will be given the local name Caloy. The system is currently located far east of Mindanao and is not expected to directly affect the country in the next three days.
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James Hansen, a prominent climate scientist at Columbia University, has predicted that 2026 will become the hottest year on record, surpassing 2024 due to accelerating global warming and an impending super El Niño. He argues that current sea surface temperatures support this forecast despite ongoing La Niña cooling. Other experts urge caution amid forecast uncertainties.