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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 04:02 HKT 25/Mar/2017

At 4 a.m. at the Hong Kong Observatory the air temperature was 21 degrees Celsius and the relative humidity 92 per cent.

The air temperatures at other places were:

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


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


Climatological Information for 25 Mar


Local Weather Forecast
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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 03:45 HKT 25/Mar/2017

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

The cold front over the northern part of Guangdong is moving southwards gradually. It is expected to cross the coastal areas later today.

Weather forecast for today

Mainly cloudy with relatively low visibility in some areas. The maximum temperature will be about 22 degrees during the day. Moderate easterly winds, becoming northerlies with a few rain patches. Temperatures will fall significantly to a minimum of around 16 degrees at night.

Outlook : Rather cool with occasional rain on Sunday. Fine and dry on Monday.


(The above forecast period is valid up to 23:59 HKT today, 25/03/2017; 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 24/Mar/2017

N0 WARNING.

GENERAL SITUATION AT 240900 UTC:
COLD FRONT 24N 106E 23N 110E 26N 116E S 10KT.

MARINE FORECAST FOR 24 HOURS FROM 241300 UTC:

HONG KONG= E 4-5, BEC N UP TO 6. DOWN TO 4000 M IN MIST OR RAIN PATCHES. SEA 2 M, BEC 3 M. TEMP 22-16 C. =
KWANGTUNG= E 4-5, BEC N 6-7. DOWN TO 4000 M IN MIST OR RAIN PATCHES. SEA 2 M, BEC 3-4 M. SWELL E UP TO 2 M. =
TAIWAN STRAIT= NE 4-5, BEC 6-7. RAIN PATCHES. SEA 2 M, BEC 3-4 M. SWELL NE UP TO 2 M. =
BASHI= E 5, N 6 LATER. RAIN PATCHES. SEA 2 M, 3 M LATER. SWELL NE UP TO 2 M. =
PRATAS= E 4-5, BEC N 6. CLD. RAIN PATCHES LATER. SEA 2 M, BEC 3 M. =
BALINTANG= E 5, OCNL 6 AT FIRST. RAIN PATCHES. SEA 2 M, UP TO 3 M AT FIRST. SWELL NE UP TO 2 M. =
SCARBOROUGH= NE 4-5. CLD. SEA UP TO 2 M. =
PARACEL= E 4-5, N UP TO 6 LATER. DOWN TO 4000 M IN MIST OR RAIN PATCHES IN N. SEA 2 M, UP TO 3 M LATER. =
TONKIN= E TO SE 4-5, BEC N 6-7. DOWN TO 4000 M IN MIST OR RAIN PATCHES. SEA 2 M, BEC 3-4 M. =
DANANG= E TO SE 4-5. DOWN TO 4000 M IN MIST OR RAIN PATCHES. 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 03:30 HKT 25/Mar/2017

Weather information for south China coastal waters issued by the Hong Kong Observatory at 3:30 a.m. on 25 March 2017

Warnings:
Strong winds in all areas.

Weather Situation:
A cold front over the northern part of Guangdong is moving southwards gradually. It is expected to cross the coastal waters today later.

Area forecasts for the next 24 hours

Hong Kong Adjacent Waters:
East force 4 to 5, becoming north up to force 6.
Mist patches and a few rain patches.
Moderate seas, becoming rough.

Nan'ao, Shanwei, South of Hong Kong and Shangchuan Dao:
East force 4 to 5, becoming north force 6 to 7.
Moderate seas, becoming rough.

Outlook for the next 48 hours
North to northeasterly winds of force 6 to 7.

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

Waglan Island Wind north-northeast force 3
  Visibility 5000 Metres

Shantou Wind south-southwest force 1
  Visibility 20 Kilometres

Dongsha Wind east-southeast force 2
  Visibility 10 Kilometres

Huangmaozhou Wind east-northeast force 4

Macau Wind east force 1
  Visibility 5000 Metres

Xisha Wind east-southeast force 1
  Visibility 28 Kilometres


WEATHER FORECAST FOR LOCAL AVIATION
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Weather Forecast for Local Aviation

Bulletin issued at 01:30 HKT 25/MAR/2017
(Next update at 9:00-9:30 HKT 25/MAR/2017)
I.   SIGNIFICANT WEATHER WITHIN 100 KILOMETER RADIUS OF H.K :
     NIL
II.  SYNOPSIS OF THE WEATHER SITUATION :
     A COLD FRONT OVER THE NORTHERN PART OF GUANGDONG
     IS MOVING SOUTHWARDS GRADUALLY. IT IS EXPECTED
     TO CROSS THE COASTAL WATERS LATER TODAY.
III. FORECAST FOR 100-KILOMETER RADIUS AROUND HONG KONG
     FROM 0200 TO 1200 HKT:
             WIND                           TEMPERATURE (DEG. C)
   A.   SURFACE:  070/10
                  BECMG  360/10-15                     19-22
   B.   2000 FT:  130/10-15                            17
   C.   5000 FT:  230/10                               14
   D.  10000 FT:  270/20                               8
   E.  18000 FT:  260/30                               MS8
   F.  24000 FT:  260/35                               MS18
   G.  30000 FT:  260/50                               MS31
   H. INVERSION LEVEL(S) (ONLY WHEN BELOW 5000 FEET) : 
      2300-3500 FT; 4500-5000 FT
   I. WEATHER       : 
      MAINLY CLOUDY. SOME MIST AND A FEW RAIN PATCHES
      IN THE MORNING.
   J. CLOUD (HEIGHT ABOVE MSL) : 
      FEW 1500 FT  SCT 3000 FT
   K. VISIBILITY    : 9 KM. TEMPO 2500 M IN MIST/RAIN.
   L. 0 DEG. C LEVEL: 15500 FT      10 DEG. C LEVEL(S) : 8400 FT
   M. TURBULENCE    : OCNL MOD
   N. SEA STATE     : 1.0-1.5 M     SEA TEMPERATURE    : 19 DEG
IV.  FURTHER OUTLOOK: 
     MODERATE NORTHERLY WINDS. MAINLY CLOUDY WITH A
     FEW 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 21:28 HKT on 22 Mar 17

VHHK SIGMET 1 VALID 220930/221330 VHHH- VHHK HONG KONG FIR SEV ICE FCST N OF N2100 AND W OF E11530 FL160/200 MOV ENE 10KT WKN= VHHK SIGMET 2 VALID 221330/221730 VHHH- VHHK HONG KONG FIR SEV ICE FCST N OF N2100 AND E OF E11300 FL160/200 MOV ENE 10KT WKN=

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 Feb 2017> 

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 25/Mar/2017
HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     22.4 C
Minimum Air Temperature                     18.9 C
Grass Minimum Temperature                   19.7 C
Relative Humidity                        76 - 91 Percent
Rainfall                                      Trace 
Total rainfall since 1st January            52.5 mm
Against an average of                      132.3 mm

Other Stations                Min                  Max
King's Park                  18.4 C               22.4 C
Wong Chuk Hang               18.9 C               23.4 C
Ta Kwu Ling                  19.2 C               23.8 C
Lau Fau Shan                 19.7 C               27.9 C
Tai Po                       19.4 C               21.3 C
Sha Tin                      19.1 C               22.0 C
Tuen Mun                     20.0 C               23.1 C
Tseung Kwan O                17.9 C               20.5 C
Sai Kung                     18.6 C               21.0 C
Cheung Chau                  19.0 C               22.4 C
Chek Lap Kok                 20.3 C               25.9 C
Tsing Yi                     20.3 C               24.2 C
Shek Kong                    20.0 C               26.3 C
Tsuen Wan Ho Koon            19.3 C               25.4 C
Tsuen Wan Shing Mun Valley   19.9 C               24.7 C
Hong Kong Park               19.2 C               23.0 C
Shau Kei Wan                 17.9 C               20.3 C
Kowloon City                 18.6 C               22.8 C
Happy Valley                 19.1 C               23.7 C
Wong Tai Sin                 19.1 C               22.4 C
Stanley                      18.2 C               21.1 C
Kwun Tong                    18.1 C               21.0 C
Sham Shui Po                 19.8 C               23.9 C
Kai Tak Runway Park          18.8 C               21.6 C
Yuen Long Park               20.5 C               27.6 C
Tai Mei Tuk               18.6 C               22.0 C

Duration of sunshine (King's Park):              3.4 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 6.
Sea surface temperature (Waglan Island):        18.3 C 

Yesterday's (24 Mar 2017) 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                               0.10
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                        0.14

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 24 Mar
Last revision date: <25 Mar 2017> 

From Weather Underground