It has been a long, hot and extremely wet summer, but relief is finally on the way.
Weather chiefs predict the temperature will fall to 23 degrees Celsius next week, signalling the arrival of autumn.
National Day tomorrow will be mainly fine but hazy, with light winds and a temperature of 26 to 30 degrees.
According to the Observatory, the mercury will then drop steadily until Wednesday as Hong Kong comes under the influence of a cool northeast monsoon.
Typhoon Longwang is expected to move west across the western north Pacific in the general direction of Taiwan over the next few days, with the wind picking up next week under its influence.
Temperatures will range from 26 to 30 degrees today, falling to 23 to 26 degrees on Wednesday.
It will become increasingly cloudy during this period, with haze, isolated showers, occasional thunderstorms and some rain forecast.