At 1 p.m. at the Hong Kong Observatory : Air temperature : 21 degrees Celsius Relative Humidity : 81 per cent During the past hour the mean UV Index recorded at King's Park : 3 Intensity of UV radiation : moderate The air temperatures at other places were: Hong Kong Observatory21 degrees ; King's Park21 degrees ; Wong Chuk Hang22 degrees ; Ta Kwu Ling22 degrees ; Lau Fau Shan25 degrees ; Tai Po21 degrees ; Sha Tin22 degrees ; Tuen Mun21 degrees ; Tseung Kwan O21 degrees ; Sai Kung22 degrees ; Cheung Chau23 degrees ; Chek Lap Kok23 degrees ; Tsing Yi23 degrees ; Shek Kong23 degrees ; Tsuen Wan Ho Koon22 degrees ; Tsuen Wan Shing Mun Valley23 degrees ; Hong Kong Park21 degrees ; Shau Kei Wan20 degrees ; Kowloon City22 degrees ; Happy Valley23 degrees ; Wong Tai Sin22 degrees ; Stanley21 degrees ; Kwun Tong21 degrees ; Sham Shui Po23 degrees ; Kai Tak Runway Park21 degrees ; Yuen Long Park25 degrees ; Tai Mei Tuk24 degrees . [air temperatures at other places]