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Weather Information for South China Coastal Waters

Bulletin issued at 00:02 HKT 09/May/2018

At midnight at the Hong Kong Observatory the air temperature was 25 degrees Celsius and the relative humidity 91 per cent.

The air temperatures at other places were:

King's Park 25 degrees;
Wong Chuk Hang 24 degrees;
Ta Kwu Ling 25 degrees;
Lau Fau Shan 25 degrees;
Tai Po 25 degrees;
Sha Tin 25 degrees;
Tuen Mun 24 degrees;
Tseung Kwan O 24 degrees;
Sai Kung 24 degrees;
Cheung Chau 24 degrees;
Chek Lap Kok 27 degrees;
Tsing Yi 25 degrees;
Shek Kong 25 degrees;
Tsuen Wan Ho Koon 23 degrees;
Tsuen Wan Shing Mun Valley 24 degrees;
Hong Kong Park 25 degrees;
Shau Kei Wan 24 degrees;
Kowloon City 25 degrees;
Happy Valley 25 degrees;
Wong Tai Sin 25 degrees;
Stanley 25 degrees;
Kwun Tong 25 degrees;
Sham Shui Po 25 degrees;
Kai Tak Runway Park 25 degrees;
Yuen Long Park 25 degrees;
Tai Mei Tuk 25 degrees.


Note: The data above is provisional. Only limited data validation has been carried out.


Climatological Information for 9 May

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


SOUTH CHINA COASTAL WATERS
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South China Coastal Waters

Current Weather | Local Weather Forecast | Regional Temperature Forecast in HK
9-day Weather Forecast | UV Index Forecast | Weather Information for Fishermen

Bulletin issued at 23:30 HKT 08/May/2018

Weather information for south China coastal waters issued by the Hong Kong Observatory at 11:30 p.m. on 08 May 2018

Warnings:
Strong winds in all areas.

Weather Situation:
A trough of low pressure is bringing unsettled weather to the south China coastal waters.

Area forecasts for the next 24 hours

Hong Kong Adjacent Waters:
East force 4, becoming force 5 to 6 later.
Isolated showers and thunderstorms.
Moderate seas, becoming rough later.

Nan'ao and Shanwei:
East to northeast force 4 to 5, becoming force 6 to 7.
Isolated squally showers and thunderstorms.
Moderate seas, becoming rough.

South of Hong Kong:
East force 4 to 5, becoming force 6 to 7 later.
Isolated squally showers and thunderstorms.
Moderate seas, becoming rough later.

Shangchuan Dao:
East to southeast force 4 to 5, becoming force 6 to 7 later.
Isolated squally showers and thunderstorms.
Moderate seas, becoming rough later.

Outlook for the next 48 hours
East to southeasterly winds of force 5 to 6, up to force 7 in east at first. Isolated squally showers and thunderstorms.

Latest reports from south China coastal weather stations
--------------------------------------------------------

Waglan Island Wind northeast force 2
  Visibility 24 Kilometres

Shantou Wind west-northwest force 1
  Visibility 19 Kilometres

Huangmaozhou Wind east-southeast force 3

Macau Wind east-southeast force 1
  Visibility 7 Kilometres

Xisha Wind south force 2
  Visibility 16 Kilometres

  • Explanation of Seas or Sea Waves
  • Explanation of Swells
  • Descriptive Terms of Wind Speeds
  • Visibility Readings in Hong Kong Waters
  • Map showing forecast areas
  • Tidal Information

    • WEATHER FORECAST FOR LOCAL AVIATION
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    Traditional Chinese Simplified Chinese

    Weather Forecast for Local Aviation

    Bulletin issued at 17:30 HKT 08/MAY/2018
    (Next update at 01:30 HKT 09/MAY/2018)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A TROUGH OF LOW PRESSURE IS BRINGING UNSETTLED
     WEATHER TO THE SOUTH CHINA COASTAL AREAS.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  040/5-10
                  TEMPO VRB/15G25 IN TS
       OFFSHORE:  040/10-15                            27-23
   B.   2000 FT:  110/10-15                            21
   C.   5000 FT:  200/10                               19
   D.  10000 FT:  250/15                               10
   E.  18000 FT:  270/25                               MS5
   F.  24000 FT:  270/30                               MS15
   G.  30000 FT:  290/40                               MS27
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      CLOUDY WITH A FEW SHOWERS AND ISOLATED
      THUNDERSTORMS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1000 FT  SCT 2500 FT  BKN 8000 FT.  
      TEMPO FEW CB 800 FT  SCT 1500 FT  BKN 4000 FT.
   K. VISIBILITY    : 9 KM.  TEMPO 3500 M IN SHOWERS.  
                      TEMPO 2000 M IN TS.
   L. 0 DEG. C LEVEL: 15500 FT      10 DEG. C LEVEL(S) : 10000 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 25 DEG
IV.  FURTHER OUTLOOK: 
     LIGHT TO MODERATE NORTHEASTERLY WINDS, BECOMING
     FRESH TO STRONG EASTERLY WINDS. CLOUDY WITH
     OCCASIONAL SHOWERS AND THUNDERSTORMS. SHOWERS
     WILL BE HEAVIER DURING THE DAY.=

    ===================================================================
Note: The forecast could be updated before the next issue time 
whenever there is newly expected occurrence or non-occurrence 
of significant weather as described below which may be hazardous 
to aircraft within 100-km radius of Hong Kong:

(a) Change of the tropical cyclone category
(b) Strong, Gale, Storm, and Hurricane force winds
(c) Thunderstorm/CBs
(d) Severe gusts
(e) Severe turbulence
(f) Significant low stratus
(g) Fog or thick haze/sandstorm/duststorm 
    causing significant reduction of visibility
(h) Volcanic ash
(i) Radioactive cloud
===================================================================
    Aviation Weather Observation and Forecast Information for Hong Kong International Airport
    To know more about clouds, please see Commonly observed clouds in Hong Kong.

    Tropical Cyclone Warning
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    Tropical Cyclone Warning

    There is no tropical cyclone warning signal.

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

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    YESTERDAY'S WEATHER AND RADIATION LEVEL Skip to main content
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    Yesterday's Weather and Radiation Level

    Bulletin issued at 00:15 HKT 09/May/2018 
    HKO Readings & Radiation Level

Yesterday's Weather and Radiation Level:
------------------------------------------------------

Hong Kong Observatory
Maximum Air Temperature                     27.1 C
Minimum Air Temperature                     23.7 C
Grass Minimum Temperature                   23.0 C
Relative Humidity                        81 - 97 Percent
Rainfall                                    28.4 mm 
Total rainfall since 1st January           156.3 mm
Against an average of                      417.2 mm

Other Stations                Min                  Max
King's Park                  23.2 C               27.5 C
Wong Chuk Hang               23.1 C               27.7 C
Ta Kwu Ling                  22.7 C               28.5 C
Lau Fau Shan                 22.5 C               27.4 C
Tai Po                       22.3 C               25.9 C
Sha Tin                      22.6 C               27.6 C
Tuen Mun                     23.1 C               27.4 C
Tseung Kwan O                22.7 C               26.9 C
Sai Kung                     23.0 C               27.0 C
Cheung Chau                  23.0 C               26.4 C
Chek Lap Kok                 23.4 C               27.8 C
Tsing Yi                     23.0 C               27.9 C
Shek Kong                    23.1 C               28.2 C
Tsuen Wan Ho Koon            22.3 C               26.0 C
Tsuen Wan Shing Mun Valley   22.8 C               27.6 C
Hong Kong Park               23.0 C               27.0 C
Shau Kei Wan                 22.5 C               26.6 C
Kowloon City                 22.4 C               27.8 C
Happy Valley                 23.4 C               28.8 C
Wong Tai Sin                 22.7 C               27.6 C
Stanley                      23.3 C               26.8 C
Kwun Tong                    22.9 C               28.0 C
Sham Shui Po                 22.8 C               28.0 C
Kai Tak Runway Park          22.7 C               27.1 C
Yuen Long Park               22.9 C               28.5 C
Tai Mei Tuk               22.6 C               27.3 C

Duration of sunshine (King's Park):              0.1 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 5.
Sea surface temperature (Waglan Island):        25.4 C 

Yesterday's (08 May 2018) 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                           0.08
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                          0.09
King's Park                         0.15
Tsim Bei Tsui                       0.13
Cape D'Aguilar                      0.13
Chek Lap Kok                        0.13

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.
    Climatological Information for 08 May
     2003copy right image | Important notices | Privacy policy Last revision date: <09 May 2018> 

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