
Average temperatures from December to February reach unprecedented levels, driven by weak monsoon winds and broader climate trends
Hong Kong has experienced its warmest winter since official meteorological records began in the nineteenth century, with an average temperature for the season markedly above historical norms.
The Hong Kong Observatory reported that the mean temperature from December 2025 through February 2026 reached 19.3 degrees Celsius, approximately two degrees above the long-term average for the period, setting a new benchmark for winter warmth.
Authorities attributed much of the elevated heat to a weaker-than-usual northeast monsoon, which typically helps bring cooler conditions to the Pearl River Delta and southern China region during the colder months.
February in particular was significantly milder than normal, with an average of 20.1 degrees Celsius — roughly three degrees above the seasonal expectation, according to the Observatory.
The Observatory noted that the unusually warm winter featured only a handful of cold days — among the lowest on record — while rainfall patterns were slightly above average due to a low-pressure trough late in February that brought more precipitation than usual.
Despite this, accumulated rainfall in the opening months of the year remained below typical levels.
Climate scientists say the record warmth aligns with broader temperature trends in the region and globally, where rising averages and changing atmospheric patterns are increasingly evident.
The city’s first recorded winter dates back to 1884–85, making the 2025–26 season the warmest on record over more than a century of data collection.
The exceptionally mild winter in Hong Kong follows a broader pattern of anomalous temperatures in recent years, with the city also reporting numerous heat records in 2025. The current temperature surge has implications for energy demand, urban comfort and ecological patterns, prompting renewed attention to both seasonal forecasting and long-term climate adaptation strategies.
The Hong Kong Observatory reported that the mean temperature from December 2025 through February 2026 reached 19.3 degrees Celsius, approximately two degrees above the long-term average for the period, setting a new benchmark for winter warmth.
Authorities attributed much of the elevated heat to a weaker-than-usual northeast monsoon, which typically helps bring cooler conditions to the Pearl River Delta and southern China region during the colder months.
February in particular was significantly milder than normal, with an average of 20.1 degrees Celsius — roughly three degrees above the seasonal expectation, according to the Observatory.
The Observatory noted that the unusually warm winter featured only a handful of cold days — among the lowest on record — while rainfall patterns were slightly above average due to a low-pressure trough late in February that brought more precipitation than usual.
Despite this, accumulated rainfall in the opening months of the year remained below typical levels.
Climate scientists say the record warmth aligns with broader temperature trends in the region and globally, where rising averages and changing atmospheric patterns are increasingly evident.
The city’s first recorded winter dates back to 1884–85, making the 2025–26 season the warmest on record over more than a century of data collection.
The exceptionally mild winter in Hong Kong follows a broader pattern of anomalous temperatures in recent years, with the city also reporting numerous heat records in 2025. The current temperature surge has implications for energy demand, urban comfort and ecological patterns, prompting renewed attention to both seasonal forecasting and long-term climate adaptation strategies.















































