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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 00:02 HKT 19/Apr/2018

At midnight at the Hong Kong Observatory the air temperature was 22 degrees Celsius and the relative humidity 81 per cent.

The air temperatures at other places were:

King's Park 21 degrees;
Wong Chuk Hang 20 degrees;
Ta Kwu Ling 21 degrees;
Lau Fau Shan 20 degrees;
Tai Po 21 degrees;
Sha Tin 21 degrees;
Tuen Mun 21 degrees;
Tseung Kwan O 19 degrees;
Sai Kung 20 degrees;
Cheung Chau 21 degrees;
Chek Lap Kok 22 degrees;
Tsing Yi 21 degrees;
Shek Kong 21 degrees;
Tsuen Wan Ho Koon 19 degrees;
Tsuen Wan Shing Mun Valley 19 degrees;
Hong Kong Park 21 degrees;
Shau Kei Wan 20 degrees;
Kowloon City 21 degrees;
Happy Valley 21 degrees;
Wong Tai Sin 21 degrees;
Stanley 21 degrees;
Kwun Tong 21 degrees;
Sham Shui Po 21 degrees;
Kai Tak Runway Park 22 degrees;
Yuen Long Park 20 degrees;
Tai Mei Tuk 21 degrees.


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


Climatological Information for 19 Apr


Local Weather Forecast
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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 00:00 HKT 19/Apr/2018

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

An easterly airstream affected the coastal areas of Guangdong yesterday. Meanwhile, a band of clouds covered the region. Locally, it was mainly cloudy. There were one or two isolated showers at first. The cloud band thinned out in the afternoon and there were sunny intervals. The easterly airstream will continue to affect the coast of Guangdong today and tomorrow.

Weather forecast for Hong Kong (Thursday, 19 Apr 2018)

Mainly cloudy with bright periods. Temperatures will range between 22 and 26 degrees. Moderate easterly winds, occasionally fresh offshore.

Outlook : Mainly cloudy on Friday. Sunny periods over the weekend, hot during the day.


(The above forecast period is valid up to 23:59 HKT today, 19/04/2018; Regular update at : around 45 minutes past each hour, 16:15 HKT and 23:15 HKT)



MARINE FORECAST
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Marine Forecast

Weather Information for the Marine Community

Bulletin issued at 21:00 HKT 18/Apr/2018

N0 WARNING.

GENERAL SITUATION AT 180900 UTC:
AN EASTERLY AIRSTREAM IS GENERALLY AFFECTING THE FORECAST AREAS

MARINE FORECAST FOR 24 HOURS FROM 181300 UTC:

HONG KONG= E 4-5, OCNL 6. ISOL SHOWERS. SEA UP TO 3 M. TEMP 22-26 C. =
KWANGTUNG= E TO NE 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. SWELL NE UP TO 2 M. =
TAIWAN STRAIT= NE 5-6. CLD. SEA 2-3 M. SWELL NE 2 M. =
BASHI= E TO NE 5-6. ISOL SHOWERS. SEA 2-3 M. SWELL NE 2 M. =
PRATAS= E TO NE 5-6. ISOL SHOWERS. SEA 2-3 M. SWELL NE UP TO 2 M. =
BALINTANG= E TO NE 5-6. ISOL SHOWERS. SEA 2-3 M. SWELL NE 2 M. =
SCARBOROUGH= NE 5-6. ISOL SHOWERS AND TS. SEA 2-3 M. SWELL NE 2 M. =
PARACEL= E 4-5. ISOL SHOWERS AND TS. SEA UP TO 2 M. =
TONKIN= E 4, OCNL 5. DOWN TO 2000 M IN MIST OR RAIN PATCHES. SEA UP TO 2 M. =
DANANG= E 4-5. ISOL SHOWERS. SEA 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.



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 23:30 HKT 18/Apr/2018

Weather information for south China coastal waters issued by the Hong Kong Observatory at 11:30 p.m. on 18 April 2018

Warnings:
Strong winds in all areas.

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

Area forecasts for the next 24 hours

Hong Kong Adjacent Waters:
East force 4 to 5, occasionally force 6.
Isolated showers.
Moderate to rough seas.

Nan'ao and Shanwei:
East to northeast force 5 to 6.
Moderate to rough seas.

South of Hong Kong:
East force 5, occasionally force 6.
Moderate to rough seas.

Shangchuan Dao:
East force 5, occasionally force 6.
Isolated showers and thunderstorms.
Moderate to rough seas.

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

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

Waglan Island Wind east force 3
  Visibility 16 Kilometres

Shantou Wind east-northeast force 2
  Visibility 30 Kilometres

Huangmaozhou Wind east-southeast force 4

Macau Wind south-southeast force 2
  Visibility 6 Kilometres

Xisha Wind east-northeast force 2
  Visibility 19 Kilometres


WEATHER FORECAST FOR LOCAL AVIATION
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Weather Forecast for Local Aviation

Bulletin issued at 17:30 HKT 18/APR/2018
(Next update at 01:30 HKT 19/APR/2018)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL.
II.  SYNOPSIS OF THE WEATHER SITUATION :
     AN EASTERLY AIRSTREAM IS AFFECTING THE COASTAL
     AREAS OF GUANGDONG.  MEANWHILE, A BROAD BAND OF
     CLOUDS IS COVERING THE REGION.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 1800 TO 0400 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  100/10
       OFFSHORE:  100/15-20                            24-21
   B.   2000 FT:  100/10-15                            18
   C.   5000 FT:  290/10                               13
   D.  10000 FT:  260/20                               8
   E.  18000 FT:  270/30                               MS8
   F.  24000 FT:  260/45                               MS19
   G.  30000 FT:  260/55                               MS32
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      NIL.
   I. WEATHER       : 
      MAINLY CLOUDY.  ISOLATED SHOWERS.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 2000 FT  SCT 4000 FT  BKN 10000 FT.
   K. VISIBILITY    : 7 KM.  TEMPO 4000 M IN SHOWERS.
   L. 0 DEG. C LEVEL: 14000 FT      10 DEG. C LEVEL(S) : 8000 FT
   M. TURBULENCE    : MOD OFFSHORE.
   N. SEA STATE     : 2.0-2.5 M     SEA TEMPERATURE    : 23 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE EASTERLY WINDS, OCCASIONALLY FRESH
     OFFSHORE.  MAINLY CLOUDY WITH BRIGHT PERIODS.=
===================================================================
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 13:35 HKT on 15 Apr 18

VHHK SIGMET 3 VALID 150345/150745 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2000 E11130 - N2124 E11130 - N2230 E11342 - N2336 E11712 - N2242 E11712 - N2000 E11130 - N2000 E11130 TOP FL400 MOV NE 15KT NC= VHHK SIGMET 5 VALID 150535/150935 VHHH- VHHK HONG KONG FIR EMBD TS FCST WI N2248 E11442 - N2342 E11730 - N2248 E11730 - N2154 E11442 - N2248 E11442 TOP FL400 MOV NE 15KT 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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Last revision date: <06 Apr 2018> 

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 19/Apr/2018
HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     25.6 C
Minimum Air Temperature                     21.1 C
Grass Minimum Temperature                   20.3 C
Relative Humidity                        68 - 86 Percent
Rainfall                                     0.1 mm 
Total rainfall since 1st January           108.9 mm
Against an average of                      260.5 mm

Other Stations                Min                  Max
King's Park                  20.5 C               24.9 C
Wong Chuk Hang               20.4 C               24.9 C
Ta Kwu Ling                  20.2 C               25.9 C
Lau Fau Shan                 19.0 C               25.7 C
Tai Po                       20.4 C               23.6 C
Sha Tin                      20.2 C               25.3 C
Tuen Mun                     19.8 C               25.3 C
Tseung Kwan O                18.8 C               24.2 C
Sai Kung                     20.0 C               23.4 C
Cheung Chau                  20.0 C               24.8 C
Chek Lap Kok                 21.3 C               26.5 C
Tsing Yi                     21.2 C               25.2 C
Shek Kong                    19.3 C               26.3 C
Tsuen Wan Ho Koon            18.5 C               24.6 C
Tsuen Wan Shing Mun Valley   19.4 C               24.8 C
Hong Kong Park               20.5 C               24.2 C
Shau Kei Wan                 19.9 C               23.6 C
Kowloon City                 20.1 C               25.5 C
Happy Valley                 20.8 C               25.5 C
Wong Tai Sin                 20.3 C               25.0 C
Stanley                      20.4 C               23.9 C
Kwun Tong                    20.2 C               23.7 C
Sham Shui Po                 20.7 C               25.4 C
Kai Tak Runway Park          20.8 C               23.9 C
Yuen Long Park               19.1 C               25.8 C
Tai Mei Tuk               20.2 C               25.1 C

Duration of sunshine (King's Park):              3.1 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 9.
Sea surface temperature (Waglan Island):        22.5 C 

Yesterday's (18 Apr 2018) 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                         0.14
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 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 18 Apr
Last revision date: <19 Apr 2018> 

From Weather Underground