Gregorian/Lunar Calendar
Traditional Chinese Simplified Chinese

Significant Weather Information (SIGMET)

The Airport Meteorological Office is responsible for monitoring hazardous weather and phenomena in the atmosphere that may affect the safety of aircraft operations within a designated airspace over the northern part of the South China Sea. Weather forecasters at the Airport Meteorological Office issues SIGMET information when hazardous weather and phenomena in the atmosphere such as thunderstorms, tropical cyclones, turbulence, icing occur or are expected to occur in the airspace.

The latest significant weather information
issued by the Hong Kong Observatory at 16:30 HKT on 23 Jun 18

VHHK SIGMET 2 VALID 230430/230830 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2224 E11700 - N2054 E11400 - N2130 E11248 - N2224 E11342 - N2254 E11454 - N2312 E11642 - N2224 E11700 TOP FL450 MOV NE 05KT NC= VHHK SIGMET 3 VALID 230830/231230 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2248 E11630 - N2130 E11542 - N2142 E11300 - N2224 E11336 - N2254 E11454 - N2248 E11630 TOP FL430 MOV NE 05KT WKN=

Please click here for more about the SIGMET

Gregorian/Lunar Calendar
Text Only Traditional Chinese Simplified Chinese

Tropical Cyclone Warning for Shipping

There is no tropical cyclone warning for shipping*.

*Tropical cyclone warnings for shipping are issued by the Hong Kong Observatory for tropical cyclones located within the area bounded by 105E and 125E , 10N and 30N.

For other tropical cyclone related information, please visit the World Meteorological Organization Web Site - Severe Weather Information Centre.

Hong Kong Observatory Brand Hong Kong - Asia's world city
GovHK Text Only Traditional Chinese Simplified Chinese Search Search Site Map Contact Us

Yesterday's Weather and Radiation Level

Bulletin issued at 00:15 HKT 23/Jun/2018
HKO Readings & Radiation Level

Yesterday's Weather and Radiation Level:

Hong Kong Observatory
Maximum Air Temperature                     30.4 C
Minimum Air Temperature                     25.4 C
Grass Minimum Temperature                   25.8 C
Relative Humidity                        82 - 93 Percent
Rainfall                                    32.9 mm 
Total rainfall since 1st January           582.2 mm
Against an average of                      966.5 mm

Other Stations                Min                  Max
King's Park                  24.9 C               30.6 C
Wong Chuk Hang               24.6 C               30.2 C
Ta Kwu Ling                  24.4 C               31.3 C
Tai Po                       24.6 C               29.9 C
Sha Tin                      25.2 C               31.4 C
Tuen Mun                     24.4 C               31.4 C
Tseung Kwan O                24.8 C               30.6 C
Sai Kung                     25.5 C               31.8 C
Cheung Chau                  23.9 C               30.0 C
Chek Lap Kok                 24.7 C               32.2 C
Tsing Yi                     24.8 C               31.2 C
Shek Kong                    24.3 C               31.9 C
Tsuen Wan Ho Koon            23.6 C               28.0 C
Tsuen Wan Shing Mun Valley   24.4 C               30.5 C
Hong Kong Park               24.3 C               30.0 C
Shau Kei Wan                 24.7 C               30.8 C
Kowloon City                 24.9 C               30.4 C
Happy Valley                 25.2 C               31.1 C
Wong Tai Sin                 25.0 C               31.2 C
Stanley                      24.6 C               30.2 C
Kwun Tong                    25.2 C               30.3 C
Sham Shui Po                 25.2 C               31.2 C
Kai Tak Runway Park          25.3 C               30.3 C
Yuen Long Park               24.1 C               32.3 C
Tai Mei Tuk               24.1 C               30.7 C

Duration of sunshine (King's Park):              1.1 H
The mean UV index recorded at King's Park yesterday was 1,
the UV intensity was Low.
The maximum UV index for yesterday was 6.

Yesterday's (22 Jun 2018) average ambient gamma radiation
dose rate taken outdoors in Hong Kong ranged from 0.08 to
0.14 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
Ping Chau                           0.09
Tap Mun                             0.09
Kat O                               0.10
Yuen Ng Fan                         0.12
Tai Mei Tuk                         0.12
Sha Tau Kok                         0.10
Kwun Tong                           0.12
Sai Wan Ho                          0.08
King's Park                         0.14
Tsim Bei Tsui                       0.13
Cape D'Aguilar                      0.13
Chek Lap Kok                        0.14

  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.
Climatological Information for 22 Jun
Last revision date: <23 Jun 2018> 

From Weather Underground