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Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region

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9-day Weather Forecast | UV Index Forecast
Weather Information for South China Coastal Waters

Bulletin issued at 23:02 HKT 22/Apr/2018

At 11 p.m. at the Hong Kong Observatory the air temperature was 25 degrees Celsius and the relative humidity 89 per cent.

The air temperatures at other places were:

King's Park 24 degrees;
Wong Chuk Hang 25 degrees;
Ta Kwu Ling 24 degrees;
Lau Fau Shan 24 degrees;
Tai Po 24 degrees;
Sha Tin 25 degrees;
Tuen Mun 24 degrees;
Tseung Kwan O 24 degrees;
Sai Kung 24 degrees;
Cheung Chau 24 degrees;
Chek Lap Kok 25 degrees;
Tsing Yi 25 degrees;
Shek Kong 25 degrees;
Tsuen Wan Ho Koon 23 degrees;
Tsuen Wan Shing Mun Valley 24 degrees;
Hong Kong Park 25 degrees;
Shau Kei Wan 23 degrees;
Kowloon City 24 degrees;
Happy Valley 25 degrees;
Wong Tai Sin 24 degrees;
Stanley 24 degrees;
Kwun Tong 24 degrees;
Sham Shui Po 25 degrees;
Kai Tak Runway Park 24 degrees;
Yuen Long Park 25 degrees;
Tai Mei Tuk 24 degrees.


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


Climatological Information for 22 Apr


Local Weather Forecast
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Local Weather Forecast

Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region

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UV Index Forecast |  Weather Information for South China Coastal Waters

Bulletin updated at 23:15 HKT 22/Apr/2018

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

The clouds covering the coast of Guangdong thinned out today and a southerly airstream affected the region. Locally, it was mainly cloudy. The weather was hot with sunny periods during the day. Temperatures in many places once rose to around 30 degrees. The southerly airstream will continue to bring hot weather to the coast of Guangdong tomorrow. Under the influence of a trough of low pressure, there will be showers and thunderstorms over southern China in the next couple of days.

Weather forecast for Hong Kong (Monday, 23 Apr 2018)

Mainly cloudy. Coastal mist in the morning. The minimum temperature will be about 24 degrees. Hot with sunny periods during the day. The maximum temperature will be around 30 degrees. There will be one or two showers later. Light to moderate southerly winds.

Outlook : Thundery showers on Tuesday. Weather will improve in the latter part of this week.


(The above forecast period is valid up to 23:59 HKT tomorrow, 23/04/2018; 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 22/Apr/2018

N0 WARNING.

GENERAL SITUATION AT 220900 UTC:
A SOUTHERLY AIRSTREAM IS AFFECTING THE FORECAST AREAS.

MARINE FORECAST FOR 24 HOURS FROM 221300 UTC:

HONG KONG= S TO SE 4, OCNL 5. DOWN TO 2000 M IN MIST OR RAIN PATCHES. SEA UP TO 2 M. TEMP 24-30 C. =
KWANGTUNG= S TO SE 4-5. DOWN TO 2000 M IN MIST OR RAIN PATCHES. SEA UP TO 2 M. =
TAIWAN STRAIT= S TO SE 4-5, OCNL 6. ISOL SHOWERS AND TS. SEA UP TO 3 M. =
BASHI= SE 5, OCNL 6. ISOL SHOWERS AND TS. SEA UP TO 3 M. =
PRATAS= S TO SE 4-5. ISOL SHOWERS. SEA UP TO 2 M. =
BALINTANG= SE 5, OCNL 6. ISOL SHOWERS AND TS. SEA UP TO 3 M. =
SCARBOROUGH= E TO SE 4-5. FINE. SEA UP TO 2 M. =
PARACEL= S TO SE 4-5. FINE. SEA UP TO 2 M. =
TONKIN= S 5-6. DOWN TO 2000 M IN MIST OR RAIN PATCHES. SEA 2-3 M. =
DANANG= S 5, OCNL 6. ISOL SHOWERS. SEA UP TO 3 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 22/Apr/2018

Weather information for south China coastal waters issued by the Hong Kong Observatory at 11:30 p.m. on 22 April 2018

Weather Situation:
A southerly airstream is affecting the south China coastal waters.

Area forecasts for the next 24 hours

Hong Kong Adjacent Waters:
South to southeast force 4, occasionally force 5.
Mist patches, one or two showers later.
Moderate seas.

Nan'ao, Shanwei, South of Hong Kong and Shangchuan Dao:
South to southeast force 4 to 5.
Moderate seas.

Outlook for the next 48 hours
Southerly winds of force 4 to 5, occasionally force 6 , becoming north to northeasterly winds of force 5 to 6. Isolated showers and thunderstorms.

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

Waglan Island Wind east-southeast force 3
  Visibility 5000 Metres

Shantou Wind east-southeast force 1
  Visibility 30 Kilometres

Huangmaozhou Wind east-southeast force 3

Macau Wind southeast force 2
  Visibility 3900 Metres in mist

Xisha Wind south-southeast force 2
  Visibility 24 Kilometres


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.


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 22/Apr/2018
HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     27.5 C
Minimum Air Temperature                     23.0 C
Grass Minimum Temperature                   22.2 C
Relative Humidity                        74 - 89 Percent
Rainfall                                      Trace 
Total rainfall since 1st January           108.9 mm
Against an average of                      283.2 mm

Other Stations                Min                  Max
King's Park                  22.5 C               27.4 C
Wong Chuk Hang               22.9 C               27.7 C
Ta Kwu Ling                  22.3 C               28.8 C
Lau Fau Shan                 21.5 C               28.9 C
Tai Po                       22.6 C               26.3 C
Sha Tin                      22.8 C               26.7 C
Tuen Mun                     22.9 C               28.3 C
Tseung Kwan O                22.1 C               25.1 C
Sai Kung                     22.6 C               25.2 C
Cheung Chau                  22.3 C               27.9 C
Chek Lap Kok                 23.4 C               29.8 C
Tsing Yi                     23.5 C               29.2 C
Shek Kong                    23.4 C               29.8 C
Tsuen Wan Ho Koon            21.7 C               26.8 C
Tsuen Wan Shing Mun Valley   22.9 C               28.1 C
Hong Kong Park               22.6 C               28.2 C
Shau Kei Wan                 22.1 C               25.1 C
Kowloon City                 22.2 C               27.5 C
Happy Valley                 23.0 C               27.9 C
Wong Tai Sin                 22.6 C               26.8 C
Stanley                      22.3 C               25.6 C
Kwun Tong                    22.1 C               26.2 C
Sham Shui Po                 23.1 C               28.6 C
Kai Tak Runway Park          22.8 C               26.2 C
Yuen Long Park               22.3 C               30.5 C
Tai Mei Tuk               22.1 C               27.6 C

Duration of sunshine (King's Park):              4.6 H
The mean UV index recorded at King's Park yesterday was 4,
the UV intensity was Moderate.
The maximum UV index for yesterday was 10.
Sea surface temperature (Waglan Island):        22.9 C 

Yesterday's (21 Apr 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                         0.12
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 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 21 Apr
Last revision date: <22 Apr 2018> 

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