Showers associated with southwesterly air currents are affecting the coast of Guangdong.
Meanwhile, a high-altitude anticyclone is bringing generally clear weather to southern China.
The Observatory predicts that there will be sunshine in parts of Hong Kong today and showers in some areas.
It is extremely hot during the day, with a maximum temperature of about 33 degrees in the urban areas and a degree or two higher in the New Territories.
A mild southwesterly wind is blowing, and the offshore wind is occasionally refreshing at first.
(Observatory website)
The observatory looks forward to continuing sweltering heat this week, with a maximum temperature of 35 degrees.
(Observatory website)
The Transport Department said that the express and central routes of the Connaught Road Central flyover (towards Kennedy Town) near Shun Tak Centre, which were closed earlier for emergency repairs, have now been released.