Hong Kong weather to bring four seasons in one day, with humidity and thunderstorms giving way to the cold
Temperatures expected to drop into Friday night
Hong Kong saw four seasons in one day on a Friday that started foggy and humid, but then became rainy with thunderstorms before temperatures fell into the night.
The strong monsoon signal was issued at 4.15pm and remained in force at 7.30pm, according to the Hong Kong Observatory.
The official forecaster issued a thunderstorm warning at 8.45am, as heavy rain fell in the New Territories in the morning, while a cold front moved across the city.
Rain fell in north and northwest New Territories before 9am, and in most parts of Hong Kong at about 9.30am. Tai Po and Yuen Long recorded the heaviest rain.
Most parts of the city saw 10mm of rainfall during the day. The thunderstorm warning was taken down later in the afternoon.
At about 7pm, the temperature had dipped to 18 degrees Celsius, compared with about 22 degrees in the day, according to the Observatory.
Temperatures were expected to fall to 16 degrees later in the night, it said.
Relative humidity throughout Friday stood at 90 to 100 per cent in most parts of the city.
The weekend was forecast to be cool but sunny, with the lowest temperature on Saturday at 15 degrees, with a few rain patches.
A continental airstream is expected to bring fine and dry weather over southern China and Hong Kong during the weekend and early next week.
Additional reporting by Naomi Ng