Gregorian/Lunar Calendar
Text Only Traditional Chinese Simplified Chinese
Current Weather Report RSS

Current Weather

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/2017

At 10 a.m. at the Hong Kong Observatory the air temperature was 30 degrees Celsius and the relative humidity 78 per cent.
During the past hour the mean UV Index recorded at King's Park was 5. The intensity of UV radiation was moderate.

Hot weather might cause adverse health effects. The Observatory advises the public to stay on the alert.

The air temperatures at other places were:

King's Park 31 degrees;
Wong Chuk Hang 31 degrees;
Ta Kwu Ling 30 degrees;
Lau Fau Shan 29 degrees;
Tai Po 30 degrees;
Sha Tin 31 degrees;
Tuen Mun 30 degrees;
Tseung Kwan O 30 degrees;
Sai Kung 30 degrees;
Cheung Chau 30 degrees;
Chek Lap Kok 32 degrees;
Tsing Yi 31 degrees;
Shek Kong 32 degrees;
Tsuen Wan Ho Koon 29 degrees;
Tsuen Wan Shing Mun Valley 29 degrees;
Hong Kong Park 30 degrees;
Shau Kei Wan 31 degrees;
Kowloon City 30 degrees;
Happy Valley 31 degrees;
Wong Tai Sin 31 degrees;
Stanley 30 degrees;
Kwun Tong 31 degrees;
Sham Shui Po 31 degrees;
Kai Tak Runway Park 30 degrees;
Yuen Long Park 32 degrees;
Tai Mei Tuk 30 degrees.

Between 8:45 and 9:45 a.m., the rainfall recorded in various regions were:

North District 0 to 2 mm;
Sha Tin 0 to 1 mm.

Here is the information on Tropical Depression at 10 a.m.:
Location: 20.2 degrees north, 107.7 degrees east.


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
Gregorian/Lunar Calendar
Text Only Traditional Chinese Simplified Chinese
Local Weather Forecast RSS

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/2017

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

Showers are affecting the coast of Guangdong.

At 10 a.m., the tropical depression over Beibu Wan was centred about 220 kilometres east-southeast of Hanoi. It is forecast to move northwest at about 22 kilometres per hour in the general direction of the northern part of Vietnam.

Weather forecast for today

Hot with sunny periods and a few showers. Moderate southeasterly winds, fresh at times.

Outlook : Becoming fine and very hot in the next couple of days.


(The above forecast period is valid up to 23:59 HKT today, 25/09/2017; 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

Numerical Prediction Products

Weather Information in China

Weather Information in other Cities

TV Weather Program

MARINE FORECAST
Gregorian/Lunar Calendar
Traditional Chinese Simplified Chinese

Marine Forecast

Weather Information for the Marine Community

Bulletin issued at 09:00 HKT 25/Sep/2017

N0 WARNING.

GENERAL SITUATION AT 242100 UTC:
FOR DETAILS ON TROPICAL DEPRESSION OVER GULF OF TONKIN, PLEASE REFER TO THE 3-HRLY SHIPPING WARNINGS.

MARINE FORECAST FOR 24 HOURS FROM 250100 UTC:

HONG KONG= SE 4-5, OCNL 6 AT FIRST. ISOL SHOWERS AND TS. SEA UP TO 2 M, UP TO 3 M AT FIRST. SWELL SE 2-3 M. TEMP 32-28 C. =
KWANGTUNG= S TO SE 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. SWELL SE 2-3 M. =
TAIWAN STRAIT= S 4-5. ISOL SHOWERS. SEA UP TO 2 M. SWELL SE UP TO 2 M. =
BASHI= E 4-5. ISOL SHOWERS. SEA UP TO 2 M. SWELL E TO SE UP TO 2 M. =
PRATAS= S TO SE 4-5. ISOL SHOWERS. SEA UP TO 2 M. SWELL E TO SE 2-3 M. =
BALINTANG= E 4-5. ISOL SHOWERS. SEA UP TO 2 M. SWELL E TO SE UP TO 2 M. =
SCARBOROUGH= NE 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. SWELL S UP TO 2 M. =
PARACEL= S TO SE 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. SWELL E TO SE 2-3 M. =
TONKIN= CYCLONIC 6-7, BEC S TO SE 5-6. DOWN TO 500 M IN FRQ HEAVY SQUALLY SHOWERS AND TS. SEA 3-4 M, BEC 2-3 M. SWELL E TO SE 2-3 M. =
DANANG= S TO SW 5-6. DOWN TO 500 M IN FRQ HEAVY SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL S 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
    Gregorian/Lunar Calendar
    Text Only Traditional Chinese Simplified Chinese

    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/2017

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 9:30 a.m. on 25 September 2017

    Warnings:
    Strong winds in Hong Kong adjacent waters, south of Hong Kong and Shangchuan Dao.

    Weather Situation:
    At 9 a.m., the tropical depression over Beibu Wan with maximum sustained winds of about 45 kilometres per hour near its centre was located at 20.2 degrees north, 108.0 degrees east. It is forecast to move northwest at about 22 kilometres per hour in the general direction of the northern part of Vietnam.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    Southeast force 4 to 5, occasionally up to force 6 at first.
    Isolated showers and thunderstorms.
    Moderate to rough seas.

    Nan'ao and Shanwei:
    South to southeast force 4 to 5.
    Moderate seas.

    South of Hong Kong and Shangchuan Dao:
    South to southeast force 5 to 6.
    Isolated showers and thunderstorms.
    Moderate to rough seas.

    Outlook for the next 48 hours
    East to southeasterly winds of force 4 to 5. Scattered squally showers and thunderstorms.

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

    Waglan Island Wind southeast force 4
      Visibility 15 Kilometres

    Shantou Wind east-northeast force 2
      Visibility 30 Kilometres

    Dongsha Wind south-southeast force 2
      Visibility 10 Kilometres

    Macau Wind south-southeast force 2
      Visibility 28 Kilometres

    Xisha Wind south-southeast force 2
      Visibility 29 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
    Gregorian/Lunar Calendar
    Traditional Chinese Simplified Chinese

    Weather Forecast for Local Aviation

    Bulletin issued at 09:00 HKT 25/SEP/2017
    (Next update at 17:30 HKT 25/SEP/2017)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AT 8 A.M., THE TROPICAL DEPRESSION OVER BEIBU
     WAN WAS CENTRED NEAR 20.1 DEGREES NORTH, 108.3
     DEGREES EAST.  IT IS FORECAST TO MOVE NORTHWEST
     AT ABOUT 12 KNOTS IN THE GENERAL DIRECTION OF
     THE NORTHERN PART OF VIETNAM.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  140/10-15
                  TEMPO VRB/20G30 IN TS
       OFFSHORE:  140/15-20                            29-33
   B.   2000 FT:  160/15-20                            24
   C.   5000 FT:  170/25                               19
   D.  10000 FT:  180/30                               12
   E.  18000 FT:  140/20                               MS2
   F.  24000 FT:  120/20                               MS12
   G.  30000 FT:  080/20                               MS26
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      SUNNY PERIODS AND A FEW SHOWERS.  ISOLATED
      THUNDERSTORMS AT FIRST.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT  SCT 3000 FT.  TEMPO FEW CB 1000 FT
      SCT 2000 FT  BKN 4000 FT.
   K. VISIBILITY    : 10 KM.  TEMPO 4000 M IN SHOWERS.
                      TEMPO 2000 M IN TS.
   L. 0 DEG. C LEVEL: 17000 FT      10 DEG. C LEVEL(S) : 12000 FT
   M. TURBULENCE    : MOD TO SEV NEAR CUNIM/TS.
                      MOD OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 28 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE SOUTH TO SOUTHEASTERLY WINDS.  MAINLY
     CLOUDY WITH A FEW SHOWERS.=

    ===================================================================
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
    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 12:15 HKT on 24 Sep 17

    VHHK SIGMET 2 VALID 240120/240420 VHHH- VHHK HONG KONG FIR EMBD TS FCST W OF LINE N2254 E11454 - N1824 E11524 TOP FL450 MOV W 15KT NC= VHHK SIGMET 4 VALID 240420/240820 VHHH- VHHK HONG KONG FIR EMBD TS FCST N OF LINE N2142 E11730 - N1948 E11130 TOP FL450 MOV WNW 15KT NC=

    Please click here for more about the SIGMET

    Tropical Cyclone Warning
    Gregorian/Lunar Calendar
    Text Only Traditional Chinese Simplified Chinese

    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.

    Skip to main content
    Hong Kong Observatory Brand Hong Kong - Asia's world city
    GovHK Text Only Traditional Chinese Simplified Chinese Search
    		Search Site Map Contact Us
    Print Version
    Back
    Print Version
    redirect to GIS version
     2003copy right image | Important notices | Privacy policy Last revision date: <25 Sep 2017> 
    TROPICAL CYCLONE WARNING FOR SHIPPING
    Gregorian/Lunar Calendar
    Text Only Traditional Chinese Simplified Chinese

    Tropical Cyclone Warning for Shipping

    Tropical Cyclone Warning |  Track and Positions of Tropical Cyclones
    Current Weather |  Local Weather Forecast |  9-day Weather Forecast
    South China Coastal Waters |  Marine Forecast
    Severe Weather Information Centre

    Bulletin issued at 09:30 HKT 25/Sep/2017


    Tropical Cyclone Warning

    At 250000 UTC, the tropical depression over Gulf of Tonkin with central pressure 1000 hectopascals was centred within 90 nautical miles of two zero point one degrees north (20.1 N) one zero eight point two degrees east (108.2 E) and is forecast to move northwest at about 12 knots for the next 24 hours.

    Maximum winds near the centre are estimated to be 25 knots.

    Radius of over 2 metre waves 120 nautical miles.

    Forecast position and intensity at 260000 UTC
    Dissipated over land.



    The Hong Kong Observatory's tropical cyclone warnings for shipping are issued about one and a half hours after the time of observation. They incorporate additional information derived from surface and upper-air data and may therefore be slightly different from the real-time satellite or radar-based positions given in the hourly bulletins for public.

    While the forecast positions and track indicate the most likely future path of the tropical cyclone, they may deviate from the actual path taken by the storm.

    Tropical Cyclone Track
    YESTERDAY'S WEATHER AND RADIATION LEVEL Skip to main content
    Hong Kong Observatory Brand Hong Kong - Asia's world city
    GovHK Text Only Traditional Chinese Simplified Chinese Search Search Site Map Contact Us
    Back

    Yesterday's Weather and Radiation Level

    Bulletin issued at 00:15 HKT 25/Sep/2017 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     30.5 C
Minimum Air Temperature                     27.1 C
Grass Minimum Temperature                   26.5 C
Relative Humidity                        77 - 94 Percent
Rainfall                                     5.6 mm 
Total rainfall since 1st January          2405.8 mm
Against an average of                     2185.4 mm

Other Stations                Min                  Max
King's Park                  26.9 C               30.5 C
Wong Chuk Hang               27.3 C               30.7 C
Ta Kwu Ling                  26.1 C               31.1 C
Lau Fau Shan                 26.3 C               30.6 C
Tai Po                       26.6 C               30.1 C
Sha Tin                      27.8 C               31.1 C
Tuen Mun                     27.6 C               31.8 C
Tseung Kwan O                27.1 C               31.0 C
Sai Kung                     27.5 C               30.2 C
Cheung Chau                  25.4 C               29.6 C
Chek Lap Kok                 27.0 C               32.1 C
Tsing Yi                     27.4 C               32.6 C
Shek Kong                    27.3 C               32.1 C
Tsuen Wan Ho Koon            26.0 C               29.3 C
Tsuen Wan Shing Mun Valley   27.0 C               31.3 C
Hong Kong Park               26.4 C               30.8 C
Shau Kei Wan                 26.3 C               30.2 C
Kowloon City                 26.6 C               31.2 C
Happy Valley                 27.2 C               31.0 C
Wong Tai Sin                 26.7 C               30.7 C
Stanley                      26.3 C               31.0 C
Kwun Tong                    27.1 C               30.7 C
Sham Shui Po                 27.4 C               31.5 C
Kai Tak Runway Park          27.2 C               30.3 C
Yuen Long Park               27.4 C               32.6 C
Tai Mei Tuk               25.9 C               29.7 C

Duration of sunshine (King's Park):              2.4 H
The mean UV index recorded at King's Park yesterday was 3,
the UV intensity was Moderate.
The maximum UV index for yesterday was 7.
Sea surface temperature (Waglan Island):        29.7 C 

Yesterday's (24 Sep 2017) 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                               0.08
Yuen Ng Fan                         0.11
Tai Mei Tuk                         0.12
Sha Tau Kok                         0.10
Kwun Tong                           0.11
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 1987-2016, 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 2017> 

    From Weather Underground