Bulletin issued at 00:15 HKT 26/Nov/2024
HKO Readings & Radiation level Yesterday's Weather and Radiation Level: ------------------------------------------------------ Hong Kong Observatory Maximum Air Temperature 23.5 C Minimum Air Temperature 21.1 C Grass Minimum Temperature 20.1 C Relative Humidity 73 - 83 Percent Rainfall trace Total rainfall since 1st January 2308.5 mm Against an average of 2396.2 mm Other Stations Min Max King's Park 20.3 C 23.5 C Wong Chuk Hang 21.2 C 23.9 C Ta Kwu Ling 18.5 C 22.6 C Lau Fau Shan 18.6 C 22.9 C Tai Po 19.2 C 22.6 C Sha Tin 20.2 C 22.7 C Tuen Mun 19.4 C 22.2 C Tseung Kwan O 20.6 C 24.0 C Sai Kung 20.2 C 22.8 C Cheung Chau 20.0 C 22.5 C Chek Lap Kok 20.5 C 23.4 C Tsing Yi 19.6 C 23.7 C Shek Kong 19.2 C 22.4 C Tsuen Wan Ho Koon 18.8 C 23.0 C Tsuen Wan Shing Mun Valley 19.9 C 23.4 C Hong Kong Park 19.9 C 22.8 C Shau Kei Wan 20.9 C 23.3 C Kowloon City 20.0 C 23.4 C Happy Valley 21.2 C 24.0 C Stanley 20.9 C 23.6 C Kwun Tong 20.1 C 23.0 C Sham Shui Po 19.9 C 24.3 C Kai Tak Runway Park 21.1 C 24.1 C Yuen Long Park 19.1 C 22.6 C Tai Mei Tuk 19.2 C 22.8 C Duration of sunshine (King's Park):0.6 H The mean UV index recorded at King's Park yesterday was 1the UV intensity was LOW The maximum UV index for yesterday was 2. Sea Surface Temperature (Waglan Island): 23.4 C Yesterday's (25 Nov 2024) average ambient gamma radiation dose rate taken outdoors in Hong Kong ranged from 0.08 to 0.15 microsievert per hour. These are within the normal range of fluctuation of the background radiation level in Hong Kong (See Note). The average dose rates measured at the radiation monitoring stations over various parts of the territory were as follows : Station Yesterday's average (microsievert/hour) Ping Chau 0.09 Tap Mun 0.09 Kat O 0.10 Yuen Ng Fan 0.11 Tai Mei Tuk 0.12 Sha Tau Kok 0.10 Kwun Tong 0.13 Sai Wan Ho 0.08 King's Park 0.14 Tsim Bei Tsui 0.13 Cape D'Aguilar 0.12 Chek Lap Kok 0.15 Note 1. From readings taken at various locations in Hong Kong in the past, the hourly mean ambient gamma radiation dose rate may vary between 0.06 and 0.3 microsievert per hour. (1 microsievert = 0.000001 sievert = 0.001 millisievert) 2. Temporal variations are generally caused by changes in meteorological conditions such as rainfall, wind and barometric pressure. 3. Spatial variations are generally caused by differences in the radioactive content of local rock and soil. 4. The data displayed is provisional. Only limited data validation has been carried out. 5. The range of relative humidity in the daily weather summary originates from the observer's reports of Hourly Readings of the day. This follows the long-term practice of collecting climatological data of the Hong Kong Observatory for over a century. It may differ from the relative humidity range derived from the 1-minute reports of the automatic weather station.Yesterday's Radiation Level