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 23:02 HKT 09/Aug/2018

At 11 p.m. at the Hong Kong Observatory the air temperature was 29 degrees Celsius and the relative humidity 81 per cent.

Please be reminded that:

The Tropical Cyclone Signal No. 1 has been issued.

The air temperatures at other places were:

King's Park 29 degrees;
Wong Chuk Hang 29 degrees;
Ta Kwu Ling 29 degrees;
Lau Fau Shan 28 degrees;
Tai Po 29 degrees;
Sha Tin 29 degrees;
Tuen Mun 29 degrees;
Tseung Kwan O 29 degrees;
Sai Kung 29 degrees;
Cheung Chau 29 degrees;
Chek Lap Kok 30 degrees;
Tsing Yi 30 degrees;
Tsuen Wan Ho Koon 28 degrees;
Tsuen Wan Shing Mun Valley 29 degrees;
Hong Kong Park 29 degrees;
Shau Kei Wan 29 degrees;
Kowloon City 29 degrees;
Happy Valley 30 degrees;
Wong Tai Sin 29 degrees;
Stanley 29 degrees;
Kwun Tong 29 degrees;
Sham Shui Po 30 degrees;
Kai Tak Runway Park 29 degrees;
Yuen Long Park 29 degrees;
Tai Mei Tuk 27 degrees.

Here is the information on Tropical Depression:
Location: 18.4 degrees north, 111.8 degrees east; Maximum sustained wind near its centre: 45 km/h.


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


Climatological Information for 9 Aug


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 23:15 HKT 09/Aug/2018

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

An anticyclone aloft brought mainly fine weather to southeastern China today, while a broad area of low pressure over the central and northern parts of the South China Sea intensified into a tropical depression and brought showers to the region. Locally, there were sunny periods and isolated showers. It was very hot during the day. The tropical depression is expected to slowly develop in the next couple of days, bringing squally showers and thunderstorm to the coast of Guangdong.

Weather forecast for Hong Kong (Friday, 10 Aug 2018)

Mainly cloudy with squally showers and isolated thunderstorms. Temperatures will range between 27 and 31 degrees. Moderate to fresh east to southeasterly winds, occasionally strong offshore and on high ground.

Outlook : The weather will be unsettled with squally showers and thunderstorms over the weekend.


(The above forecast period is valid up to 23:59 HKT tomorrow, 10/08/2018; Regular update at : around 45 minutes past each hour, 16:15 HKT and 23:15 HKT)



MARINE FORECAST
Gregorian/Lunar Calendar
Traditional Chinese Simplified Chinese

Marine Forecast

Weather Information for the Marine Community

Bulletin issued at 21:00 HKT 09/Aug/2018

N0 WARNING.

GENERAL SITUATION AT 090900 UTC:
FOR DETAILS ON TROPICAL DEPRESSION OVER THE CENTRAL AND NORTHERN PARTS OF SOUTH CHINA SEA, PLEASE REFER TO THE 3-HRLY SHIPPING WARNINGS.

MARINE FORECAST FOR 24 HOURS FROM 091300 UTC:

HONG KONG= E TO SE 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL E UP TO 2 M. TEMP 27-31 C. =
KWANGTUNG= E TO SE 5-6, CYCLONIC 6-7 IN W LATER. DOWN TO 500 M IN FREQ HEAVY SQUALLY SHOWERS AND TS. SEA 2-3 M, 3-4 M IN W LATER. SWELL E 2 M. =
TAIWAN STRAIT= SE 4, OCNL 5. ISOL SHOWERS AND TS. SEA UP TO 2 M. =
BASHI= W TO SW 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. SWELL SW 2 M. =
PRATAS= S 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL SW 2 M. =
BALINTANG= W TO SW 4-5, OCNL 6. ISOL SHOWERS AND TS. SEA UP TO 3 M. SWELL SW 2 M. =
SCARBOROUGH= S TO SW 5-6, OCNL 7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 4 M. SWELL SW 2 M. =
PARACEL= CYCLONIC 6-7, SW 6 LATER. DOWN TO 500 M IN FREQ HEAVY SQUALLY SHOWERS AND TS. SEA 3-4 M ,3 M LATER. SWELL S TO SW 2 M. =
TONKIN= N TO NW 4-5, OCNL 6. DOWN TO 500 M IN FREQ HEAVY SQUALLY SHOWERS AND TS. SEA UP TO 3 M. =
DANANG= W 5-6, OCNL 7. DOWN TO 1000 M IN SCT HEAVY SQUALLY SHOWERS AND TS. SEA UP TO 4 M. SWELL S 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.



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 23:30 HKT 09/Aug/2018

Weather information for south China coastal waters issued by the Hong Kong Observatory at 11:30 p.m. on 09 August 2018

Warnings:
Strong winds in all areas.

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

At 11 p.m., the tropical depression over the northern part of the South China Sea with maximum sustained winds of about 45 kilometres per hour near its centre was located near 18.4 degrees north, 111.8 degrees east. It is forecast to move north-northwest at about 12 kilometres per hour in the general direction towards the vicinity of the coast of western Guangdong to Hainan Island.

Area forecasts for the next 24 hours

Hong Kong Adjacent Waters:
East to southeast force 6 to 7.
Isolated squally showers and thunderstorms.
Rough seas.

Nan'ao:
East to southeast force 4 to 5, occasionally force 6.
Isolated squally showers and thunderstorms.
Moderate to rough seas.

Shanwei:
East to southeast force 5 to 6.
Isolated squally showers and thunderstorms.
Moderate to rough seas.

South of Hong Kong:
East to southeast force 6 to 7.
Scattered squally showers and thunderstorms.
Rough seas.

Shangchuan Dao:
South to southwest force 6 to 7, cyclonic force 6 to 7 in south at first.
Frequent heavy squally showers and thunderstorms.
Rough seas.

Outlook for the next 48 hours
South to southeasterly winds of force 6 to 7, force 5 later. Scattered heavy squally showers and thunderstorms.

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

Waglan Island Wind east force 5
  Visibility 32 Kilometres

Shantou Wind east force 2
  Visibility 30 Kilometres

Dongsha Wind south force 3
  Visibility 9 Kilometres

Huangmaozhou Wind east-southeast force 7

Macau Wind east force 4
  Visibility 24 Kilometres

Xisha Wind southwest force 5
  Visibility 10 Kilometres


WEATHER FORECAST FOR LOCAL AVIATION
Gregorian/Lunar Calendar
Traditional Chinese Simplified Chinese

Weather Forecast for Local Aviation

Bulletin issued at 17:30 HKT 09/AUG/2018
(Next update at 01:30 HKT 10/AUG/2018)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     STRONG WINDS AND SEV TURB.
     ISOL CUNIM/TS AND ASSOCIATED HAZARDS.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AN EASTERLY AIRSTREAM IS AFFECTING THE SOUTH
     CHINA COASTAL AREAS.
     THE AREA OF LOW PRESSURE OVER THE CENTRAL AND
     NORTHERN PARTS OF THE SOUTH CHINA SEA HAS
     INTENSIFIED INTO A TROPICAL DEPRESSION. AT 5
     P.M., THE TROPICAL DEPRESSION WAS CENTRED NEAR
     17.9 DEGREES NORTH, 111.9 DEGREES EAST AND IS
     FORECAST TO MOVE NORTH-NORTHWEST AT ABOUT 6
     KNOTS IN THE GENERAL DIRECTION TOWARDS THE
     VICINITY OF THE COAST OF WESTERN GUANGDONG TO
     HAINAN ISLAND.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  090/15, OCNL 20
                  TEMPO VRB/20G30 IN TS
       OFFSHORE:  090/25-30                            33-28
   B.   2000 FT:  110/25, OCNL 30                      25
   C.   5000 FT:  120/20-25                            20
   D.  10000 FT:  120/20                               12
   E.  18000 FT:  110/15                               MS1
   F.  24000 FT:  090/15                               MS11
   G.  30000 FT:  070/15                               MS24
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY CLOUDY WITH SQUALLY SHOWERS AND ISOLATED
      THUNDERSTORMS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2500 FT  SCT 4000 FT.  
      TEMPO FEW CB 1000 FT  SCT 2000 FT  BKN 4000 FT.
   K. VISIBILITY    : 10 KM.  TEMPO 3500 M IN SHOWERS.  
                      TEMPO 2000 M IN TS.
   L. 0 DEG. C LEVEL: 17500 FT      10 DEG. C LEVEL(S) : 12200 FT
   M. TURBULENCE    : MOD TO SEV.
   N. SEA STATE     : 4.0-5.0 M     SEA TEMPERATURE    : 28 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE TO FRESH EAST TO SOUTHEASTERLY WINDS,
     STRONG OFFSHORE AND ON HIGH GROUND.  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 20:50 HKT on 09 Aug 18

VHHK SIGMET 3 VALID 090850/091250 VHHH- VHHK HONG KONG FIR EMBD TS FCST S OF N2230 TOP FL450 MOV W 15KT NC= VHHK SIGMET 4 VALID 091250/091650 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2230 E11730 - N2100 E11130 - N1900 E11200 - N1900 E11548 - N2100 E11730 - N2230 E11730 TOP FL420 MOV NW 10KT NC=

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 22:45 HKT 09/Aug/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.

At 11 p.m., the tropical depression over the northern part of the South China Sea was estimated to be about 500 kilometres south-southwest of Hong Kong (near 18.4 degrees north 111.8 degrees east) and is forecast to move north-northwest at about 12 kilometres per hour in the general direction towards the vicinity of the coast of western Guangdong to Hainan Island.

In the past few hours, the movement of the tropical depression was rather slow and kept a distance from Hong Kong.

According to the present forecast track, the chance of issuing the Strong Wind Signal, No. 3 is not high before dawn on Friday. Members of the public should take note of the latest weather situation before departing home in the morning.

The outer rain bands of the tropical depression will affect the coast of Guangdong on Friday and Saturday. Locally, there will be squally showers and thunderstorms. Winds will be occasionally strong over offshore waters and on high ground.

(Precautionary Announcements with No. 1 Signal)

1. Every precaution should be taken. Objects likely to be blown away should be secured or taken indoors. Check if all windows and doors can be securely locked.

2. Drains should be cleared of leaves and rubbish. People in low-lying areas should take precautions against flooding.

3. Those who have duties during a tropical cyclone should now remain on call.

4. There may be swells, you are advised to stay away from the shoreline.

5. Listen to radio, watch TV or browse the Hong Kong Observatory's website and mobile app for the latest information on the tropical cyclone.

Last revision date: <09 Aug 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
Last revision date: <09 Aug 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 21:30 HKT 09/Aug/2018


Tropical Cyclone Warning

At 091200 UTC, the tropical depression over the northern part of South China Sea with central pressure 998 hectopascals was centred within 90 nautical miles of one eight point one degrees north (18.1 N) one one one point nine degrees east (111.9 E) and is forecast to move north-northwest at about 6 knots for the next 24 hours.

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

Radius of over 2 metre waves 60 nautical miles.

Forecast position and intensity at 101200 UTC
Two zero point three degrees north (20.3 N)
One one one point five degrees east (111.5 E)
Maximum winds 30 knots.

Forecast position and intensity at 111200 UTC
Two one point three degrees north (21.3 N)
One one one point four degrees east (111.4 E)
Maximum winds 35 knots.

Forecast position and intensity at 121200 UTC
Two one point seven degrees north (21.7 N)
One one zero point six degrees east (110.6 E)
Maximum winds 30 knots.

Forecast position and intensity at 131200 UTC
Two two point one degrees north (22.1 N)
One zero eight point eight degrees east (108.8 E)
Maximum winds 25 knots.

Forecast position and intensity at 141200 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 09/Aug/2018
HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     33.9 C
Minimum Air Temperature                     27.1 C
Grass Minimum Temperature                   28.3 C
Relative Humidity                        61 - 89 Percent
Rainfall                                     0.5 mm 
Total rainfall since 1st January           989.7 mm
Against an average of                     1575.3 mm

Other Stations                Min                  Max
King's Park                  26.5 C               32.4 C
Wong Chuk Hang               26.3 C               33.2 C
Ta Kwu Ling                  25.1 C               34.0 C
Lau Fau Shan                 23.9 C               33.7 C
Tai Po                       25.7 C               32.8 C
Sha Tin                      26.0 C               33.2 C
Tuen Mun                     25.0 C               32.3 C
Tseung Kwan O                25.0 C               32.5 C
Sai Kung                     25.9 C               32.5 C
Cheung Chau                  26.2 C               32.5 C
Chek Lap Kok                 27.0 C               36.1 C
Tsing Yi                     24.9 C               33.7 C
Tsuen Wan Ho Koon            23.9 C               31.9 C
Tsuen Wan Shing Mun Valley   24.3 C               32.4 C
Hong Kong Park               25.3 C               33.0 C
Shau Kei Wan                 25.6 C               32.6 C
Kowloon City                 25.7 C               33.0 C
Happy Valley                 25.9 C               33.6 C
Wong Tai Sin                 25.6 C               33.0 C
Stanley                      27.8 C               33.2 C
Kwun Tong                    26.4 C               32.2 C
Sham Shui Po                 25.2 C               33.8 C
Kai Tak Runway Park          27.1 C               32.1 C
Yuen Long Park               24.1 C               34.8 C
Tai Mei Tuk               25.8 C               33.3 C

Duration of sunshine (King's Park):              8.6 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 10.
 

Yesterday's (08 Aug 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                           0.09
Tap Mun                             0.09
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                      0.13
Chek Lap Kok                        0.14

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 08 Aug
Last revision date: <09 Aug 2018> 

From Weather Underground