27th October 2026 – (Hong Kong) Following a record‑breaking spell of heat during the solar term known as Frost’s Descent, the Hong Kong Observatory says a strong surge of the northeast monsoon is expected to reach the South China coast in the middle of next week, bringing a distinct cool down. Urban minimum temperatures are forecast to fall to around 22°C, with lower readings in the New Territories, as winds freshen from the north and humidity eases.
Pressure is rising over south‑eastern China and a replenishment of the northeast monsoon is anticipated to reach the coastal areas overnight. Before the stronger surge arrives, the currently dry northeast monsoon will persist, keeping a large difference between daytime and night‑time temperatures; days will still feel warm under sunny periods.
For tonight and tomorrow, conditions will turn cloudy at times with one or two rain patches in the morning and at night. The minimum temperature will be about 24°C, climbing to around 28°C during sunny periods tomorrow. Winds will be moderate to fresh easterlies, occasionally strong offshore and on high ground.
In the following couple of days, it will be mainly fine and dry by day, though cloudier on Sunday as an easterly airstream affects the coast of southern China. With an anticyclone aloft strengthening later in the week, Guangdong can expect generally fine weather and a rather large diurnal temperature range inland. Another surge of the northeast monsoon is projected to affect southern China in the early to middle part of next week, making it windier along the coast and reinforcing the cooler, drier trend across Hong Kong.