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Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region

Local Weather Forecast | Regional Temperature Forecast in HK
9-day Weather Forecast | UV Index Forecast
Weather Information for South China Coastal Waters

Bulletin issued at 10:02 HKT 25/Sep/2016

At 10 a.m. at the Hong Kong Observatory the air temperature was 28 degrees Celsius and the relative humidity 79 per cent.
During the past hour the mean UV Index recorded at King's Park was 3. The intensity of UV radiation was moderate.

Please be reminded that:

The Fire Danger Warning is Yellow and the fire risk is high.

The air temperatures at other places were:

King's Park 29 degrees;
Wong Chuk Hang 29 degrees;
Ta Kwu Ling 30 degrees;
Lau Fau Shan 28 degrees;
Tai Po 29 degrees;
Sha Tin 29 degrees;
Tuen Mun 29 degrees;
Tseung Kwan O 30 degrees;
Sai Kung 31 degrees;
Cheung Chau 28 degrees;
Chek Lap Kok 31 degrees;
Tsing Yi 30 degrees;
Shek Kong 30 degrees;
Tsuen Wan Ho Koon 28 degrees;
Tsuen Wan Shing Mun Valley 30 degrees;
Hong Kong Park 28 degrees;
Shau Kei Wan // degrees;
Kowloon City 31 degrees;
Happy Valley 30 degrees;
Wong Tai Sin 30 degrees;
Stanley 28 degrees;
Kwun Tong 29 degrees;
Sham Shui Po 29 degrees;
Kai Tak Runway Park 29 degrees;
Yuen Long Park 31 degrees.


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


Climatological Information for 25 Sep

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


Local Weather Forecast
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Local Weather Forecast

Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region

Current Weather | Regional Temperature Forecast in HK |  9-day Weather Forecast
UV Index Forecast |  Weather Information for South China Coastal Waters

Bulletin updated at 09:45 HKT 25/Sep/2016

Here is the latest weather bulletin issued by the Hong Kong Observatory.

An easterly airstream is affecting the coastal areas of Guangdong.

At 10 a.m., Typhoon Megi was centred about 1190 kilometres east-southeast of Gaoxiong. It is forecast to move west-northwest at about 25 kilometres per hour across the seas east of the Philippines and continue to intensify.

Weather forecast for today

Mainly fine. It will be dry during the day. Moderate easterly winds, occasionally fresh offshore at first.

Outlook : Mainly fine and hot in the next couple of days. Showery midweek this week.


(The above forecast period is valid up to 23:59 HKT today, 25/09/2016; Regular update at : around 45 minutes past each hour, 16:15 HKT and 23:15 HKT)

Information on Tropical Cyclones

Marine Weather Information and Forecast

Weather Information for Aviation

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Weather Information in China

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MARINE FORECAST
Traditional Chinese Simplified Chinese

Marine Forecast

Weather Information for the Marine Community

Bulletin issued at 09:00 HKT 25/Sep/2016

HURRICANE WARNING AREA: BASHI.
STORM WARNING AREA: BALINTANG.

GENERAL SITUATION AT 242100 UTC:
TYPHOON MEGI (1617) 970 HPA 19N 132E WNW 14 KT INTSF.

MARINE FORECAST FOR 24 HOURS FROM 250100 UTC:

HONG KONG= E 4-5, OCNL 6. FINE. SEA UP TO 3 M. SWELL E UP TO 2 M LATER. TEMP 31-26 C. =
KWANGTUNG= E TO NE 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL E UP TO 2 M. =
TAIWAN STRAIT= NE 6-7. FINE. SEA 3-4 M. SWELL NE 2 M. =
BASHI= N TO NE 7-8, UP TO 12 IN E LATER. DOWN TO 500 M IN FRQ HEAVY SQUALLY SHOWERS AND TS LATER. SEA 4-6 M, UP TO 14 M LATER. SWELL NE 2 M, 3 M LATER. =
PRATAS= E TO NE 5-6, N 6 LATER. ISOL SHOWERS AND TS. SEA 2-3 M. SWELL NE UP TO 2 M. =
BALINTANG= NE 7-8, NW UP TO 10 IN E LATER. DOWN TO 500 M IN FRQ HEAVY SQUALLY SHOWERS AND TS LATER. SEA 4-6 M, UP TO 10 M LATER. SWELL NE 2 M, BEC 3 M. =
SCARBOROUGH= NE 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL NE UP TO 2 M. =
PARACEL= E TO NE 4-5, OCNL 6. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA UP TO 3 M. SWELL NE UP TO 2 M. =
TONKIN= E 4-5. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA UP TO 2 M. =
DANANG= E TO NE 4-5. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA UP TO 2 M. =
NNNN
Abbreviations:
KT, VRB, SLW, FRQ - knot, variable, slow, frequent STNR, QSTNR, C - stationary, quasi-stationary, degrees celsius WKN, INTSF, INTST, NC - weaken, intensify, intensity, no change LGT, ISOL, SCT, OCNL - light, isolated, scattered, occasional CLD, DZ, TS - cloudy, drizzle, thunderstorm

The date and time are specified by a 6-digit number DDHHMM. DD stands for the day of month, HH represents the hour while MM indicates the minute in UTC.


  • Map showing the 10 forecast areas
  • Tidal Information

    • 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 09:30 HKT 25/Sep/2016

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 9:30 a.m. on 25 September 2016

    Warnings:
    Strong winds in Hong Kong adjacent waters, Nan'ao, Shanwei and south of Hong Kong.

    Weather Situation:
    An easterly airstream is affecting the coastal waters of Guangdong.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East force 4 to 5, occasionally force 6.
    Moderate to rough seas.

    Nan'ao:
    East to northeast force 5 to 6, becoming north force 6 later.
    Moderate to rough seas.

    Shanwei and South of Hong Kong:
    East to northeast force 5, occasionally force 6.
    Moderate to rough seas.

    Shangchuan Dao:
    East force 4 to 5.
    Scattered squally showers and thunderstorms.
    Moderate seas.

    Outlook for the next 48 hours
    Northeasterly winds of force 5 to 6, becoming west to northwesterly winds of force 6 to 7. Scattered squally showers and thunderstorms.

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

    Waglan Island Wind east-northeast force 4
      Visibility 10 Kilometres

    Shantou Wind southwest force 1
      Visibility 20 Kilometres

    Dongsha Wind northeast force 3
      Visibility 10 Kilometres

    Huangmaozhou Wind east-northeast force 4

    Macau Wind north force 1
      Visibility 9 Kilometres

    Xisha Wind calm
      Visibility 30 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
    Traditional Chinese Simplified Chinese

    Weather Forecast for Local Aviation

    Bulletin issued at 09:00 HKT 25/SEP/2016
    (Next update at 17:30 HKT 25/SEP/2016)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL.

II.  SYNOPSIS OF THE WEATHER SITUATION :
     AN EASTERLY AIRSTREAM IS AFFECTING THE COASTAL
     AREAS OF GUANGDONG.

III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  070/10
       OFFSHORE:  070/15                               29-33
   B.   2000 FT:  070/10-15                            24
   C.   5000 FT:  040/10                               19
   D.  10000 FT:  070/10                               12
   E.  18000 FT:  080/10                               MS3
   F.  24000 FT:  050/10                               MS13
   G.  30000 FT:  020/20                               MS28
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      3700 - 4200 FT.
   I. WEATHER       : 
      MAINLY FINE.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT.
   K. VISIBILITY    : 7 KM.
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 11400 FT
   M. TURBULENCE    : MOD OFFSHORE.
   N. SEA STATE     : 1.5-2.0 M     SEA TEMPERATURE    : 27 DEG

IV.  FURTHER OUTLOOK: 
     LIGHT TO MODERATE EASTERLY WINDS.  MAINLY FINE.=

    ===================================================================
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.

    sigmet
    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 09:35 HKT on 25 Sep 16

    VHHK SIGMET 1 VALID 250135/250535 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N1824 E11524 - N1642 E11400 - N1830 E11224 - N1806 E11324 - N1824 E11524 MOV W 10KT NC=

    Please click here for more about the SIGMET

    Tropical Cyclone Warning
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    Tropical Cyclone Warning

    There is no tropical cyclone warning signal.

    The latest report on Tropical Cyclone Meranti broadcast by Ms LAM CHING CHI , Senior Scientific Officer of the Hong Kong Observatory at 6:15 p.m. on 14 Sep 2016.
    Listen Listen

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

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    TROPICAL CYCLONE WARNING FOR SHIPPING
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    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.

    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 25/Sep/2016 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     30.5 C
Minimum Air Temperature                     26.6 C
Grass Minimum Temperature                   26.0 C
Relative Humidity                        68 - 83 Percent
Rainfall                                      Trace 
Total rainfall since 1st January          2263.8 mm
Against an average of                     2185.4 mm

Other Stations                Min                  Max
King's Park                  26.1 C               30.4 C
Wong Chuk Hang               27.1 C               30.8 C
Ta Kwu Ling                  25.8 C               31.5 C
Lau Fau Shan                 24.9 C               32.2 C
Tai Po                       26.4 C               29.5 C
Sha Tin                      26.4 C               30.7 C
Tuen Mun                     25.4 C               32.0 C
Tseung Kwan O                25.7 C               30.1 C
Sai Kung                     26.8 C               29.0 C
Cheung Chau                  26.0 C               29.4 C
Chek Lap Kok                 27.4 C               32.9 C
Tsing Yi                     27.0 C               31.7 C
Shek Kong                    26.2 C               31.9 C
Tsuen Wan Ho Koon            24.5 C               30.9 C
Tsuen Wan Shing Mun Valley   25.9 C               31.5 C
Hong Kong Park               26.5 C               30.3 C
Shau Kei Wan                 26.3 C               28.6 C
Kowloon City                 26.2 C               31.0 C
Happy Valley                 27.0 C               31.0 C
Wong Tai Sin                 26.5 C               30.4 C
Stanley                      26.6 C               29.3 C
Kwun Tong                    26.4 C               29.9 C
Sham Shui Po                 26.9 C               31.5 C
Kai Tak Runway Park          27.2 C               29.5 C
Yuen Long Park               25.7 C               32.6 C

Duration of sunshine (King's Park):              7.9 H
The mean UV index recorded at King's Park yesterday was 4,
the UV intensity was Moderate.
The maximum UV index for yesterday was 10.
Sea surface temperature (Waglan Island):        28.2 C 

Yesterday's (24 Sep 2016) 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
                            (microsievert/hour)
Ping Chau                           0.08
Tap Mun                             0.08
Kat O                               0.09
Yuen Ng Fan                         0.11
Tai Mei Tuk                         0.13
Sha Tau Kok                         0.10
Kwun Tong                           0.12
Sai Wan Ho                          0.09
King's Park                         0.14
Tsim Bei Tsui                       0.13
Cape D'Aguilar                      0.13
Chek Lap Kok                        0.14

Note

      

    1. From readings taken at various locations in Hong Kong during
the period 1987-2015, the background ambient gamma radiation
levels may vary between 0.06 and 0.30 microsievert per hour.

    2. The extent of health effects to a person as a result of
exposure to radiation is expressed by a physical quantity
called equivalent dose, in unit of sievert.  Protective
action may be required if there is an increase in the
ambient gamma dose rate above background such that the total
additional dose is expected to exceed 5000 microsieverts in
a relatively short period of time. For example, a dose of
5000 microsieverts may be reached when the ambient gamma
dose rate is 1000 microsieverts per hour (several thousand
times above background) and lasts for 5 hours.

    3. The readings of ambient gamma radiation level from
instrument are expressed in unit of gray, which is
numerically equal to the gamma dose expressed in sievert.
    Climatological Information for 24 Sep
     2003copy right image | Important notices | Privacy policy Last revision date: <25 Sep 2016> 

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