Hong Kong Records Warmest October in 140 Years as El Niño Intensifies
SingTao · 4 SOURCESabout 5 hours ago5 MIN
Summary
Hong Kong has officially recorded its warmest October in 140 years, with the Hong Kong Observatory confirming that all key temperature metrics shattered historical records. The city's average temperature for the month reached 27.6 degrees Celsius, while average highs hit 30.5 degrees and average lows stood at 25.8 degrees . This unprecedented warmth comes amid a powerful El Niño event and weaker-than-normal northeast monsoon patterns that have gripped the region . An environmental group warned that autumn temperatures are projected to remain at record levels, raising concerns about sea water warming and its cascading effects on coastal cities .
Key Points
- Hong Kong's October 2026 average temperature of 27.6°C, average maximum of 30.5°C, and average minimum of 25.8°C all broke records dating back to 1884
- The Hong Kong Observatory issued a hot weather warning on October 19, marking the second latest such warning in recorded history
- The Observatory attributed the extreme warmth to climate change, an unusually strong El Niño event, a weaker-than-normal northeast monsoon, and a more powerful-than-usual subtropical ridge over South China
- Green Power Director Zheng Muqi (鄭睦奇) projected that Hong Kong's autumn average temperature would reach a record 27°C based on data from previous super El Niño events
- Sea water warming caused by El Niño could intensify and prolong heatwaves while pushing coastal city temperatures higher, according to environmental experts
Why It Matters
These record temperatures signal a troubling acceleration of climate change impacts in Hong Kong. Beyond immediate public health concerns from prolonged heat exposure, the warming of surrounding sea waters poses long-term risks to the city's ecosystem and infrastructure resilience . As El Niño events typically last about 12 months, Hong Kong residents may face extended periods of extreme weather conditions requiring significant adaptation measures.
These record temperatures signal a troubling acceleration of climate change impacts in Hong Kong. Beyond immediate public health concerns from prolonged heat exposure, the warming of surrounding sea waters poses long-term risks to the city's ecosystem and infrastructure resilience . As El Niño events typically last about 12 months, Hong Kong residents may face extended periods of extreme weather conditions requiring significant adaptation measures.