A powerful cold surge originating from the northeast is poised to deliver a significant temperature drop across southern China, with Hong Kong expected to see lows plummeting to 13 degrees Celsius next week.
The Hong Kong Observatory announced Friday that a reinforcing wave of a strong Northeast Monsoon will reach the Guangdong coast late Monday, October 17. This air mass is projected to usher in a period of sharply colder weather, culminating in low temperatures on Tuesday and Wednesday.
Currently under the influence of a seasonably dry monsoon, Hong Kong is experiencing mildly cloudy skies with brief intervals of sunshine and relative dryness. Friday’s temperatures hovered between 20°C and 23°C, accompanied by moderate to fresh northerly winds, though stronger gusts were noted on higher ground. A brief spell of light drizzle is forecast for Friday evening before conditions clear.
Sharp Temperature Decline Forecast
The meteorological landscape is set for a dramatic shift as the reinforcing cold front approaches. Forecasters predict a rapid decline in the mercury beginning late Monday.
Key projections for the upcoming cold snap include:
- Tuesday, October 18: Temperatures are expected to fall significantly, with the minimum reaching 15°C. Residents in elevated areas should brace for strong gales, potentially reaching Force 8 on the Beaufort scale.
- Wednesday, October 19: The chill will intensify, with the lowest temperatures forecast to hit 13°C, marking the coldest point of the weather event.
- Wind and Precipitation: The cold plunge will be accompanied by considerable winds and scattered light rain or drizzle along the coast.
This shift comes as a low-pressure system, formerly Tropical Depression Feng-Huang, has transformed into an extratropical cyclone east of Taiwan, influencing broader regional weather patterns. For the near term, the dry northeast monsoon will maintain generally fair weather across the South China coast over the next two to three days.
Impact and Outlook
The drastic change in weather conditions requires residents to take proactive measures. Public health officials typically advise people, particularly the elderly and those with chronic illnesses, to dress warmly and minimize prolonged exposure to the cold and wind.
While the frigid conditions are expected to dominate the middle of the week, meteorologists anticipate a gradual moderation. As the monsoon subsides slightly, temperatures are projected to begin a slow climb back upward toward the end of the subsequent week, returning to seasonal norms.
The Observatory continues to monitor the progression of the monsoon and encourages the public to consult official updates for the latest forecasts and any potential weather warnings related to high winds or cold stress across the region.