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 11:02 HKT 17/Jul/2018

At 11 a.m. at the Hong Kong Observatory the air temperature was 31 degrees Celsius and the relative humidity 70 per cent.
During the past hour the mean UV Index recorded at King's Park was 7. The intensity of UV radiation was high.

Please be reminded that:

The Tropical Cyclone Signal No. 1 has been issued.

The air temperatures at other places were:

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

Here is the information on Tropical Storm Son-Tinh:
Location: 19.3 degrees north, 116.8 degrees east; Maximum sustained wind near its centre: 65 km/h.


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


Climatological Information for 17 Jul

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 10:45 HKT 17/Jul/2018

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

Weather forecast for today

Sunny periods. Cloudy with a few showers later. Moderate to fresh easterly winds, strengthening gradually later. There will be swells.

Outlook : There will be showers tomorrow and winds will moderate later. Sunny intervals and a few showers in the following couple of days.


(The above forecast period is valid up to 23:59 HKT today, 17/07/2018; 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 17/Jul/2018

GALE WARNING AREAS: HONG KONG, KWANGTUNG, PRATAS, PARACEL AND TONKIN.

GENERAL SITUATION AT 162100 UTC:
FOR DETAILS ON TROPICAL DEPRESSION OVER THE NORTHEASTERN PART OF THE SOUTH CHINA SEA, PLEASE REFER TO THE 3-HRLY SHIPPING WARNINGS.

MARINE FORECAST FOR 24 HOURS FROM 170100 UTC:

HONG KONG= E 6-7, UP TO 8 LATER. ISOL SHOWERS AND TS. SEA 3-4 M, UP TO 6 M LATER. SWELL E 2 M. TEMP 31-27 C. =
KWANGTUNG= E 6-7, CYCLONIC UP TO 8 IN W LATER. DOWN TO 500 M IN FRQ HEAVY SQUALLY SHOWERS AND TS. SEA 3-4 M, UP TO 6 M IN W LATER. SWELL E 2-3 M, SW 2 M. =
TAIWAN STRAIT= NE 6-7. ISOL SHOWERS AND TS. SEA 3-4 M. SWELL NE 2 M. =
BASHI= E 6-7. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL E 2-3 M, SW 2 M. =
PRATAS= CYCLONIC UP TO 7-8, E TO SE 6-7 LATER. DOWN TO 500 M IN FRQ HEAVY SQUALLY SHOWERS AND TS. SEA 4-6 M, 3-4 M LATER. SWELL E 2-3 M, SW 2 M. =
BALINTANG= E 6-7. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL E 2-3 M, SW 2 M. =
SCARBOROUGH= SW 6-7. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL SW 2-3 M. =
PARACEL= E TO SE 6-7, CYCLONIC UP TO 8 LATER. DOWN TO 500 M IN FRQ HEAVY SQUALLY SHOWERS AND TS. SEA 3-4 M, UP TO 6 M LATER. SWELL SW 2-3 M. =
TONKIN= E TO NE 6-7, UP TO 8 LATER. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 3-4 M, UP TO 6 M LATER. SWELL NE 2 M. =
DANANG= S TO SW 6-7. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL S TO SW 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 10:55 HKT 17/Jul/2018

    Weather information for south China coastal waters issued by the Hong Kong Observatory at 10:55 a.m. on 17 July 2018

    Warnings:
    Gale force winds in all areas.

    Weather Situation:
    An easterly airstream is affecting the south China coastal waters.

    Tropical Depression Son-Tinh has intensified into a tropical storm. At 11 a.m., Son-Tinh with maximum sustained winds of about 65 kilometres per hour near its centre was located near 19.3 degrees north, 116.8 degrees east. It is forecast to move west at about 40 kilometres per hour across the northern part of the South China Sea and towards the vicinity of Hainan Island and Leizhou Peninsula.

    Area forecasts for the next 24 hours

    Hong Kong Adjacent Waters:
    East force 6 to 7, becoming force 8.
    Isolated showers and thunderstorms.
    Rough to very rough seas.

    Nan'ao and Shanwei:
    East to northeast force 6 to 7, becoming force 8.
    Isolated showers and thunderstorms.
    Rough to very rough seas.

    South of Hong Kong and Shangchuan Dao:
    East to northeast force 6 to 7, becoming cyclonic force 8.
    Frequent heavy squally showers and thunderstorms.
    Rough to very rough seas.

    Outlook for the next 48 hours
    East to southeasterly winds of force 5 to 6, cyclonic winds up to force 8 in west. Frequent heavy squally showers and thunderstorms in west.

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

    Waglan Island Wind north-northeast force 4

    Shantou Wind east-northeast force 2
      Visibility 30 Kilometres

    Dongsha Wind east-northeast force 4
      Visibility 10 Kilometres

    Huangmaozhou Wind northeast force 5

    Macau Wind north-northeast force 2
      Visibility 12 Kilometres

    Xisha Wind south-southwest force 2
      Visibility 14 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 09:30 HKT 17/JUL/2018
    (Next update at 12:30 HKT 17/JUL/2018)
    I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     GALE FORCE WINDS. SEV TURB AND SEV GUSTS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     THE TROPICAL DEPRESSION OVER THE NORTHEASTERN
     PART OF THE SOUTH CHINA SEA WAS NAMED SON-TINH. 
     AT 9 A.M., SON-TINH WAS CENTRED NEAR 19.3
     DEGREES NORTH, 117.7 DEGREES EAST. IT IS
     FORECAST TO MOVE WEST AT ABOUT 22 KNOTS ACROSS
     THE NORTHERN PART OF THE SOUTH CHINA SEA AND
     TOWARDS THE VICINITY OF HAINAN ISLAND AND
     LEIZHOU PENINSULA.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1000 TO 2000 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  060/5-10
                  BEC 090/15-20
       OFFSHORE:  060/15-20
                  BEC 090/30, OCNL 35G45               30-33
   B.   2000 FT:  070/15-20
                  BEC 090/30-35G45                     23
   C.   5000 FT:  090/30
                  BEC 090/35-40                        18
   D.  10000 FT:  090/30
                  BEC 090/40                           13
   E.  18000 FT:  090/30
                  BEC 090/40                           0
   F.  24000 FT:  090/25-30
                  BEC 090/35-40                        MS10
   G.  30000 FT:  100/25-30
                  BEC 100/35-40                        MS25
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      SUNNY INTERVALS. A FEW SHOWERS LATER.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT  SCT 3500 FT.
   K. VISIBILITY    : 10 KM. TEMPO 3500 M IN SHOWERS.
   L. 0 DEG. C LEVEL: 18000 FT      10 DEG. C LEVEL(S) : 11800 FT
   M. TURBULENCE    : MOD TO SEV
   N. SEA STATE     : 2.5-7.0 M     SEA TEMPERATURE    : 27 DEG
IV.  FURTHER OUTLOOK: 
     FRESH TO STRONG EASTERLY WINDS. MAINLY CLOUDY
     WITH SQUALLY SHOWERS AND ISOLATED THUNDERSTORMS.=

    ===================================================================
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 11:00 HKT on 17 Jul 18

    VHHK SIGMET 1 VALID 170145/170545 VHHH- VHHK HONG KONG FIR EMBD TS FCST S OF N21 TOP FL450 MOV W 15KT NC= VHHK SIGMET 2 VALID 170430/171030 VHHH- VHHK HONG KONG FIR TC SON-TINH PSN N1924 E11612 CB FCST AT 0430Z WI 120NM OF TC CENTRE TOP FL450 INTSF FCST AT 1030Z TC CENTRE PSN N1936 E11348=

    Please click here for more about the SIGMET

    TROPICAL CYCLONE WARNING 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

    Tropical Cyclone Warnings

    Bulletin issued at 10:45 HKT 17/Jul/2018

    Tropical Cyclone Warning Bulletin

    Here is the latest Tropical Cyclone Warning Bulletin issued by the Hong Kong Observatory.

    The Standby Signal, No. 1 is in force.

    This means that a tropical cyclone now centred within about 800 kilometres of Hong Kong may affect us.

    Tropical Depression Son-Tinh has intensified into a tropical storm.

    At 11 a.m., Son-Tinh was estimated to be about 430 kilometres southeast of Hong Kong (near 19.3 degrees north 116.8 degrees east) and is forecast to move west at about 40 kilometres per hour across the northern part of the South China Sea and towards the vicinity of Hainan Island and Leizhou Peninsula.
     2003copy right image | Important notices | Privacy policy Last revision date: <17 Jul 2018> 
    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: <17 Jul 2018> 
    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 17/Jul/2018


    Tropical Cyclone Warning

    Tropical Depression over the northeastern part of South China Sea with central pressure 994 hectopascals was named as Son-Tinh. At 170000 UTC, it was centred within 90 nautical miles of one nine point three degrees north (19.3 N) one one eight point two degrees east (118.2 E) and is forecast to move west at about 22 knots for the next 24 hours.

    Maximum winds near the centre are estimated to be 30 knots.

    Radius of over 2 metre waves 180 nautical miles.

    Forecast position and intensity at 180000 UTC
    One nine point five degrees north (19.5 N)
    One zero eight point eight degrees east (108.8 E)
    Maximum winds 35 knots.

    Forecast position and intensity at 190000 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 17/Jul/2018 
    HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     31.4 C
Minimum Air Temperature                     25.7 C
Grass Minimum Temperature                   24.0 C
Relative Humidity                        67 - 93 Percent
Rainfall                                     5.8 mm 
Total rainfall since 1st January           873.8 mm
Against an average of                     1276.0 mm

Other Stations                Min                  Max
King's Park                  25.4 C               30.7 C
Wong Chuk Hang               25.9 C               30.6 C
Ta Kwu Ling                  25.6 C               31.7 C
Lau Fau Shan                 24.5 C               31.0 C
Tai Po                       25.6 C               29.6 C
Sha Tin                      26.1 C               31.6 C
Tuen Mun                     26.4 C               31.6 C
Tseung Kwan O                25.2 C               30.6 C
Sai Kung                     26.1 C               30.0 C
Cheung Chau                  25.1 C               29.3 C
Chek Lap Kok                 26.7 C               32.4 C
Tsing Yi                     26.2 C               31.3 C
Shek Kong                    26.1 C               31.4 C
Tsuen Wan Ho Koon            24.8 C               29.6 C
Tsuen Wan Shing Mun Valley   25.3 C               30.5 C
Hong Kong Park               25.1 C               30.0 C
Shau Kei Wan                 25.2 C               30.1 C
Kowloon City                 25.0 C               30.7 C
Happy Valley                 26.4 C               32.1 C
Wong Tai Sin                 25.5 C               30.4 C
Stanley                      25.8 C               30.0 C
Kwun Tong                    25.6 C               29.9 C
Sham Shui Po                 25.8 C               32.4 C
Kai Tak Runway Park          26.1 C               30.1 C
Yuen Long Park               25.8 C               32.2 C
Tai Mei Tuk               25.4 C               30.5 C

Duration of sunshine (King's Park):              5.6 H
The mean UV index recorded at King's Park yesterday was 5,
the UV intensity was Moderate.
The maximum UV index for yesterday was 12.
Sea surface temperature (Waglan Island):        28.2 C 

Yesterday's (16 Jul 2018) 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                               0.10
Yuen Ng Fan                         0.12
Tai Mei Tuk                         0.11
Sha Tau Kok                         0.10
Kwun Tong                           0.12
Sai Wan Ho                          0.08
King's Park                         0.14
Tsim Bei Tsui                       0.13
Cape D'Aguilar                      0.12
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 16 Jul
     2003copy right image | Important notices | Privacy policy Last revision date: <17 Jul 2018> 

    From Weather Underground