Temperatures are expected to drop to 13 degrees Celsius this morning in a short-lived cold front that will see the mercury climb back to a maximum of 24 degrees on Sunday, the weatherman said.
As the cold front crossed the coast of Guangdong between Tuesday night and Wednesday morning, temperatures dropped significantly from Wednesday.
The Observatory said it will be rather cool this morning, with urban areas experiencing minimum temperatures of about 13 degrees and the New Territories a couple of degrees lower than that, with the day seeing sunny intervals.
Minimum temperatures in many areas in the New Territories, including Tai Po and Sheung Shui, will only reach 11 degrees, while Ta Kwu Ling will even go as low as 10 degrees Celsius.
The maximum temperature will be about 18 degrees around 3 pm.
Winds will be moderate to fresh force four to five north-to-northeasterlies, while offshore areas will see strong force six gusts occasionally at first.
The weather will be slightly warmer tomorrow, but it will still be cool in the morning, with temperatures ranging from 16 to 21 degrees and northeasterlies of force four, while some places offshore ill see force five gusts.
The weatherman said the northeast monsoon now affecting the coastal areas of southern China will moderate slightly over the weekend, and daytime temperatures will rise over the region.
The Observatory predicts that the daytime temperatures will rise to a maximum of 24 degrees on Sunday, while it will still be cloudy with sunny intervals.
However, under the influence of the northeast monsoon, the weather is expected to be cool in the morning along the Guangdong coast next week, with urban temperatures reaching 16 degrees for several days starting from Tuesday.
Things are expected to turn slightly cooler on Tuesday, with temperatures ranging from 16 to 19 degrees, or as low as 13 degrees in the northern part of the New Territories.
Next Saturday will generally be sunny, with the morning staying cool and the day keeping dry.