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Bulletin issued at 11:02 HKT 27/Jan/2017

At 11 a.m. at the Hong Kong Observatory the air temperature was 18 degrees Celsius and the relative humidity 59 per cent.
During the past hour the mean UV Index recorded at King's Park was 4. The intensity of UV radiation was moderate.

The air temperatures at other places were:

King's Park 19 degrees;
Wong Chuk Hang 20 degrees;
Ta Kwu Ling 19 degrees;
Lau Fau Shan 17 degrees;
Tai Po 20 degrees;
Sha Tin 19 degrees;
Tuen Mun 19 degrees;
Tseung Kwan O 21 degrees;
Sai Kung 19 degrees;
Cheung Chau 19 degrees;
Chek Lap Kok 19 degrees;
Tsing Yi 19 degrees;
Shek Kong 19 degrees;
Tsuen Wan Ho Koon 19 degrees;
Tsuen Wan Shing Mun Valley 19 degrees;
Hong Kong Park 19 degrees;
Shau Kei Wan 20 degrees;
Kowloon City 21 degrees;
Happy Valley 20 degrees;
Wong Tai Sin 21 degrees;
Stanley 18 degrees;
Kwun Tong 20 degrees;
Sham Shui Po 21 degrees;
Kai Tak Runway Park 20 degrees;
Yuen Long Park 20 degrees;
Tai Mei Tuk 20 degrees.


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


Climatological Information for 27 Jan

Regional Weather in Hong Kong

Information on Tropical Cyclones

Hong Kong Climatology


Local Weather Forecast
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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 10:45 HKT 27/Jan/2017

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

A dry northeast monsoon is bringing generally fine and cool weather to Guangdong.

Weather forecast for today

Fine. Cool in the morning and at night. Mild and dry during the day. Moderate east to northeasterly winds.

Outlook : Cloudier during the first three days of Lunar New Year with mild weather during the day. Becoming cool on the evening of the third day of Lunar New Year.


(The above forecast period is valid up to 23:59 HKT today, 27/01/2017; 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

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MARINE FORECAST
Traditional Chinese Simplified Chinese

Marine Forecast

Weather Information for the Marine Community

Bulletin issued at 09:00 HKT 27/Jan/2017

N0 WARNING.

GENERAL SITUATION AT 262100 UTC:
THE NORTHEAST MONSOON IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 270100 UTC:

HONG KONG= E TO NE 4-5. FINE. SEA UP TO 2 M. TEMP 21-17 C. =
KWANGTUNG= E TO NE 5-6. FINE. SEA 2-3 M. SWELL NE 2 M. =
TAIWAN STRAIT= NE 5-6. FINE. SEA 2-3 M. SWELL NE 2 M. =
BASHI= E TO NE 6-7. CLD. SEA 3-4 M. SWELL NE 2-3 M. =
PRATAS= E TO NE 5-6, OCNL 7. CLD. SEA 3 M. SWELL NE 2-3 M. =
BALINTANG= E TO NE 6-7. CLD. SEA 3-4 M. SWELL NE 2-3 M. =
SCARBOROUGH= NE 5-6, OCNL 7. CLD. SEA 3 M. SWELL NE 2-3 M. =
PARACEL= NE 5-6, OCNL 7. CLD. SEA 3 M. SWELL NE 2-3 M. =
TONKIN= E TO NE 4-5, OCNL 6. CLD. SEA 2 M. =
DANANG= NE 5-6. CLD. SEA 2-3 M. SWELL NE 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 27/Jan/2017

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 9:30 a.m. on 27 January 2017

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

    Weather Situation:
    The northeast monsoon is affecting the south China coastal waters.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East to northeast force 4 to 5.
    Moderate seas.

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

    Outlook for the next 48 hours
    East to northeasterly winds of force 5 to 6.

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

    Waglan Island Wind northeast force 4
      Visibility 15 Kilometres

    Shantou Wind south-southeast force 1
      Visibility 10 Kilometres

    Dongsha Wind northeast force 5
      Visibility 10 Kilometres

    Huangmaozhou Wind northeast force 4

    Macau Wind north-northeast force 3
      Visibility 11 Kilometres

    Xisha Wind northeast force 3
      Visibility 25 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 09:30 HKT 27/JAN/2017
    (Next update at 17:30 HKT 27/JAN/2017)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE NORTHEAST MONSOON IS AFFECTING THE SOUTH
     CHINA COASTAL AREAS.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  070/10
       OFFSHORE:  060/15-20                            17-21
   B.   2000 FT:  070/10-15                            12
   C.   5000 FT:  050/15                               9
   D.  10000 FT:  220/10                               6
   E.  18000 FT:  320/25                               MS10
   F.  24000 FT:  310/65                               MS18
   G.  30000 FT:  290/65                               MS28
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      3000 - 3800FT
   I. WEATHER       : 
      FINE.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 4000 FT
   K. VISIBILITY    : 10 KM.
   L. 0 DEG. C LEVEL: 15000 FT      10 DEG. C LEVEL(S) : 4700 FT
   M. TURBULENCE    : MOD OFFSHORE
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 18 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EAST TO NORTHEASTERLY WINDS. 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
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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 21:17 HKT on 12 Jan 17

    VHHK SIGMET 1 VALID 120920/121320 VHHH- VHHK HONG KONG FIR EMBD TS FCST S OF LINE N1742 E11306 - N1724 E11436 TOP FL400 MOV NW 10KT NC= VHHK SIGMET 2 VALID 121320/121720 VHHH- VHHK HONG KONG FIR EMBD TS FCST S OF LINE N1742 E11306 - N1724 E11436 TOP FL400 MOV NW 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.

    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 27/Jan/2017 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     19.8 C
Minimum Air Temperature                     16.2 C
Grass Minimum Temperature                   14.8 C
Relative Humidity                        64 - 84 Percent
Rainfall                                       0 mm 
Total rainfall since 1st January             3.4 mm
Against an average of                       21.3 mm

Other Stations                Min                  Max
King's Park                  15.1 C               20.3 C
Wong Chuk Hang               14.4 C               19.6 C
Ta Kwu Ling                  10.5 C               22.1 C
Lau Fau Shan                 12.5 C               20.2 C
Tai Po                       14.9 C               20.5 C
Sha Tin                      14.5 C               20.9 C
Tuen Mun                     13.9 C               22.1 C
Tseung Kwan O                14.2 C               20.8 C
Sai Kung                     14.6 C               18.4 C
Cheung Chau                  15.3 C               18.8 C
Chek Lap Kok                 15.5 C               21.1 C
Tsing Yi                     15.6 C               20.9 C
Shek Kong                    13.0 C               22.6 C
Tsuen Wan Ho Koon            12.3 C               21.0 C
Tsuen Wan Shing Mun Valley   12.5 C               21.2 C
Hong Kong Park               15.1 C               19.6 C
Shau Kei Wan                 15.2 C               18.9 C
Kowloon City                 14.3 C               20.8 C
Happy Valley                 15.1 C               21.6 C
Wong Tai Sin                 15.3 C               21.5 C
Stanley                      15.7 C               18.6 C
Kwun Tong                    15.0 C               20.1 C
Sham Shui Po                 15.1 C               21.8 C
Kai Tak Runway Park          16.1 C               18.5 C
Tai Mei Tuk               13.9 C               20.4 C

Duration of sunshine (King's Park):              9.1 H
The mean UV index recorded at King's Park yesterday was 2,
the UV intensity was Low.
The maximum UV index for yesterday was 5.
Sea surface temperature (Waglan Island):        18.6 C 

Yesterday's (26 Jan 2017) 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                        0.15

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 26 Jan
     2003copy right image | Important notices | Privacy policy Last revision date: <27 Jan 2017> 

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