Bulletin updated at 11:02 HKT 21/May/2025
At 11 a.m. at Hong Kong Observatory : Air Temperature : 31 degrees Celsius Relative Humidity : 70 per cent Weather Cartoon : No. 51 - SUNNY PERIODS During the past hour the mean UV Index recorded at King's Park : 5 Intensity of UV radiation : moderate Hot weather might cause adverse health effects. The public should stay on the alert and drink more water. The air temperatures at other places were: King's Park 31 degrees; Wong Chuk Hang 30 degrees; Ta Kwu Ling 32 degrees; Lau Fau Shan 32 degrees; Tai Po 32 degrees; Sha Tin 32 degrees; Tuen Mun 32 degrees; Tseung Kwan O 32 degrees; Sai Kung 31 degrees; Cheung Chau 33 degrees; Chek Lap Kok 32 degrees; Tsing Yi 32 degrees; Shek Kong 32 degrees; Tsuen Wan Ho Koon 29 degrees; Tsuen Wan Shing Mun Valley 31 degrees; Hong Kong Park 30 degrees; Shau Kei Wan 31 degrees; Kowloon City 32 degrees; Happy Valley 32 degrees; Wong Tai Sin 32 degrees; Stanley 31 degrees; Kwun Tong 31 degrees; Sham Shui Po 32 degrees; Kai Tak Runway Park 32 degrees; Yuen Long Park 32 degrees; Tai Mei Tuk 32 degrees.