No end to big chill
The cold snap intensified yesterday morning, with temperatures dipping to 2.7 degrees Celsius on Cheung Chau and in Ngong Ping on Lantau Island.
Urban areas saw a minimum of 8.5 degrees.
It was the lowest morning temperature since the winter solstice in December.
Most of the New Territories saw the mercury hover between 5 degrees and 7 degrees.
Areas around Ta Kwu Ling recorded a low of 5.8 degrees.
The frost and cold-weather warning has now been in place for more than a week.
The Observatory forecasts the chill is expected to continue for the next seven days, with temperatures ranging from 9 degrees to 12 degrees as a result of a winter monsoon affecting mainland coastal areas.
Meanwhile, the chilly weather has landed 79 elderly people in hospital.
The Senior Citizen Home Safety Association said that by 4pm yesterday, 1,018 elderly people had pressed personal emergency alarms that are linked to the association's office.
It said 10,103 people had used the alert system since the cold snap began last week.
The Home Affairs Bureau has opened 10 temporary shelters for people who need refuge.
Today's minimum temperature will be 9 degrees in urban areas, while it will be 2 to 3 degrees lower in the New Territories. The maximum will be about 13 degrees.