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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 12:02 HKT 20/Sep/2016

At noon at the Hong Kong Observatory the air temperature was 26 degrees Celsius and the relative humidity 89 per cent.
During the past hour the mean UV Index recorded at King's Park was 5. The intensity of UV radiation was moderate.

The air temperatures at other places were:

King's Park 27 degrees;
Wong Chuk Hang 27 degrees;
Ta Kwu Ling 27 degrees;
Lau Fau Shan 25 degrees;
Tai Po 26 degrees;
Sha Tin 27 degrees;
Tuen Mun 24 degrees;
Tseung Kwan O 27 degrees;
Sai Kung 27 degrees;
Cheung Chau 23 degrees;
Chek Lap Kok 25 degrees;
Tsing Yi 27 degrees;
Shek Kong 26 degrees;
Tsuen Wan Ho Koon 25 degrees;
Tsuen Wan Shing Mun Valley 27 degrees;
Hong Kong Park 25 degrees;
Shau Kei Wan 27 degrees;
Kowloon City 28 degrees;
Happy Valley 27 degrees;
Wong Tai Sin 27 degrees;
Stanley 26 degrees;
Kwun Tong 27 degrees;
Sham Shui Po 28 degrees;
Kai Tak Runway Park 28 degrees;
Yuen Long Park 26 degrees.

38.2 millimetres of rainfall were recorded at the Hong Kong Observatory between midnight last night and midday today.


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


Climatological Information for 20 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

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UV Index Forecast |  Weather Information for South China Coastal Waters

Bulletin updated at 11:45 HKT 20/Sep/2016

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

The northeast monsoon is affecting the coastal areas of Guangdong gradually.

At noon, Typhoon Malakas was centred about 510 kilometres west-southwest of Tokyo. It is forecast to move east-northeast at about 40 kilometres per hour across the southern part of Japan.

Weather forecast for this afternoon and tonight

Mainly cloudy with relatively low visibility over parts of the territory. A few rain patches at first. Bright periods in the afternoon. Moderate northerly winds at first, becoming northeasterlies. Fresh offshore.

Outlook : Sunny periods in the next couple of days. A few rain patches later this week.


(The above forecast period is valid up to 23:59 HKT today, 20/09/2016; Regular update at : around 45 minutes past each hour, 16:15 HKT and 23:15 HKT)

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MARINE FORECAST
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Marine Forecast

Weather Information for the Marine Community

Bulletin issued at 09:00 HKT 20/Sep/2016

N0 WARNING.

GENERAL SITUATION AT 192100 UTC:
LOW 1006HPA 17N 115E W SLOWLY INTST NC.

MARINE FORECAST FOR 24 HOURS FROM 200100 UTC:

HONG KONG= NE 4-5, OCNL 6. ISOL SHOWERS. SEA 2 M. TEMP 28-25 C. =
KWANGTUNG= E TO NE 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. =
TAIWAN STRAIT= NE 6-7. ISOL SHOWERS AND TS. SEA 3-4 M. SWELL NE 2 M. =
BASHI= E TO NE 5-6. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL NE 2 M. =
PRATAS= E TO NE 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL NE 2 M. =
BALINTANG= E TO NE 5-6. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL NE 2 M. =
SCARBOROUGH= E TO SE 4-5. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA UP TO 2 M. =
PARACEL= NE 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M. =
TONKIN= NE 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. =
DANANG= NE 5-6. ISOL SHOWERS AND TS. SEA 2-3 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 12:30 HKT 20/Sep/2016

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 12:30 p.m. on 20 September 2016

    Warnings:
    Strong winds in all areas.

    Weather Situation:
    The northeast monsoon is affecting the coastal waters of Guangdong gradually.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    Northeast force 4 to 5, occasionally force 6, north force 4 to 5 at first.
    A few rain patches. Visibility relatively low in some areas.
    Moderate to rough seas.

    Nan'ao, Shanwei, South of Hong Kong and Shangchuan Dao:
    East to northeast force 5 to 6.
    Isolated showers and thunderstorms.
    Moderate to rough seas.

    Outlook for the next 48 hours
    East to northeasterly winds of force 5 to 6. Isolated showers and thunderstorms.

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

    Waglan Island Wind north-northeast force 4
      Visibility 9 Kilometres

    Shantou Wind east-northeast force 3
      Visibility 30 Kilometres

    Dongsha Wind east-northeast force 4
      Visibility 10 Kilometres

    Huangmaozhou Wind north-northeast force 4

    Macau Wind north-northeast force 3
      Visibility 700 Metres in rain

    Xisha Wind west-northwest force 1
      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 20/SEP/2016
    (Next update at 17:30 HKT 20/SEP/2016)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.

II.  SYNOPSIS OF THE WEATHER SITUATION :
     AN EASTERLY AIRSTREAM IS BRINGING SHOWERS TO THE
     COAST OF GUANGDONG AND THE NORTHERN PART OF THE
     SOUTH CHINA SEA.

III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  060/10-15
       OFFSHORE:  060/15-20, OCNL 25                   23-29
   B.   2000 FT:  060/15-20, OCNL 25                   21
   C.   5000 FT:  070/25                               17
   D.  10000 FT:  100/20                               10
   E.  18000 FT:  290/10                               MS2
   F.  24000 FT:  360/10                               MS13
   G.  30000 FT:  060/15                               MS27
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY CLOUDY WITH SHOWERS AND MIST.  SHOWERS
      WILL EASE OFF GRADUALLY DURING THE DAY.  SUNNY
      INTERVALS IN THE AFTERNOON.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 800 FT  SCT 2500 FT  BKN 10000 FT.
   K. VISIBILITY    : 7 KM.  TEMPO 2000 M IN SHOWERS/MIST.
   L. 0 DEG. C LEVEL: 16500 FT      10 DEG. C LEVEL(S) : 10000 FT
   M. TURBULENCE    : MOD TO SEV OFFSHORE AND NEAR HILLS.
   N. SEA STATE     : 2.0-3.0 M     SEA TEMPERATURE    : 26 DEG

IV.  FURTHER OUTLOOK: 
     MODERATE EAST TO NORTHEASTERLY WINDS, FRESH
     OFFSHORE.  MAINLY CLOUDY WITH ONE OR TWO RAIN
     PATCHES.=

    ===================================================================
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
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    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 11:20 HKT on 20 Sep 16

    VHHK SIGMET 1 VALID 200320/200720 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N1936 E11618 - N1812 E11512 - N1830 E11224 - N1930 E11130 - N2024 E11130 - N2024 E11500 - N1936 E11618 TOP FL450 STNR 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 20/Sep/2016 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     32.6 C
Minimum Air Temperature                     25.5 C
Grass Minimum Temperature                   25.0 C
Relative Humidity                        57 - 90 Percent
Rainfall                                     3.8 mm 
Total rainfall since 1st January          2221.8 mm
Against an average of                     2140.7 mm

Other Stations                Min                  Max
King's Park                  24.2 C               31.8 C
Wong Chuk Hang               25.3 C               32.7 C
Ta Kwu Ling                  23.4 C               33.0 C
Lau Fau Shan                 24.2 C               32.2 C
Tai Po                       24.7 C               30.8 C
Sha Tin                      24.6 C               32.0 C
Tuen Mun                     25.8 C               33.5 C
Tseung Kwan O                24.0 C               33.3 C
Sai Kung                     24.5 C               31.2 C
Cheung Chau                  25.1 C               30.5 C
Chek Lap Kok                 26.6 C               32.8 C
Tsing Yi                     24.8 C               33.0 C
Shek Kong                    24.6 C               33.5 C
Tsuen Wan Ho Koon            24.1 C               31.2 C
Tsuen Wan Shing Mun Valley   23.7 C               33.2 C
Hong Kong Park               24.7 C               32.2 C
Shau Kei Wan                 23.6 C               31.9 C
Kowloon City                 23.9 C               31.5 C
Happy Valley                 24.8 C               34.0 C
Wong Tai Sin                 24.2 C               34.1 C
Stanley                      24.2 C               31.6 C
Kwun Tong                    24.1 C               32.1 C
Sham Shui Po                 24.8 C               33.3 C
Kai Tak Runway Park          24.8 C               31.8 C
Yuen Long Park               25.0 C               33.8 C

Duration of sunshine (King's Park):              7.5 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 8.
 

Yesterday's (19 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                             0.09
Kat O                               0.09
Yuen Ng Fan                         0.12
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 19 Sep
     2003copy right image | Important notices | Privacy policy Last revision date: <20 Sep 2016> 

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