At noon at the Hong Kong Observatory : Air temperature : 21 degrees Celsius Relative Humidity : 84 per cent During the past hour the mean UV Index recorded at King's Park : 4 Intensity of UV radiation : moderate The air temperatures at other places were: Hong Kong Observatory21 degrees ; King's Park20 degrees ; Wong Chuk Hang21 degrees ; Ta Kwu Ling20 degrees ; Lau Fau Shan23 degrees ; Tai Po21 degrees ; Sha Tin21 degrees ; Tuen Mun22 degrees ; Tseung Kwan O20 degrees ; Sai Kung21 degrees ; Cheung Chau21 degrees ; Chek Lap Kok23 degrees ; Tsing Yi22 degrees ; Shek Kong22 degrees ; Tsuen Wan Ho Koon21 degrees ; Tsuen Wan Shing Mun Valley21 degrees ; Hong Kong Park19 degrees ; Shau Kei Wan19 degrees ; Kowloon City21 degrees ; Happy Valley21 degrees ; Wong Tai Sin22 degrees ; Stanley20 degrees ; Kwun Tong20 degrees ; Sham Shui Po21 degrees ; Kai Tak Runway Park20 degrees ; Yuen Long Park22 degrees ; Tai Mei Tuk23 degrees . Between 10:45 and 11:45 a.m., the rainfall recorded in various regions were: North District0 to 1 mm. No rainfall was recorded at the Hong Kong Observatory between midnight last night and midday today. [air temperatures at other places]