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Bulletin updated at 06:45 HKT 21/Jun/2018

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

The southwest monsoon is affecting the coast of Guangdong.

Weather forecast for today

Mainly cloudy with sunny periods and one or two showers. Very hot during the day with a maximum temperature of about 33 degrees. Moderate southwesterly winds.

Outlook : Showers will increase gradually and sunny intervals in the next few days.


(The above forecast period is valid up to 23:59 HKT today, 21/06/2018; 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 20/Jun/2018

GALE WARNING AREAS: TAIWAN STRAIT AND BASHI.

GENERAL SITUATION AT 200900 UTC:
TROUGH 25N 109E 25N 113E 26N 115E 28N 119E 28N 125E S SLOWLY.

MARINE FORECAST FOR 24 HOURS FROM 201300 UTC:

HONG KONG= SW 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL SW 2 M. TEMP 28-33 C. =
KWANGTUNG= SW 5-6. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 2-3 M. SWELL SW 2-3 M. =
TAIWAN STRAIT= SW 6-7, OCNL 8. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA UP TO 6 M. SWELL SW 2-3 M. =
BASHI= SW 6-7, OCNL 8. DOWN TO 2000 M IN SCT SQUALLY SHOWERS AND TS. SEA UP TO 6 M. SWELL SW 2-3 M. =
PRATAS= SW 6, OCNL 7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA UP TO 4 M. SWELL SW 2-3 M. =
BALINTANG= SW 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL SW 2-3 M. =
SCARBOROUGH= SW 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL SW 2-3 M. =
PARACEL= S TO SW 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL SW 2-3 M. =
TONKIN= S TO SW 6-7. DOWN TO 4000 M IN ISOL SQUALLY SHOWERS AND TS. SEA 3-4 M. SWELL S 2 M. =
DANANG= S TO SW 6-7. DOWN TO 4000 M IN ISOL 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.



SOUTH CHINA COASTAL WATERS
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South China Coastal Waters

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9-day Weather Forecast | UV Index Forecast | Weather Information for Fishermen

Bulletin issued at 05:30 HKT 21/Jun/2018

Weather information for south China coastal waters issued by the Hong Kong Observatory at 5:30 a.m. on 21 June 2018

Warnings:
Strong winds in all areas.

Weather Situation:
The southwest monsoon is affecting the south China coastal waters.

Area forecasts for the next 24 hours

Hong Kong Adjacent Waters:
Southwest force 5 to 6.
Isolated squally showers and thunderstorms.
Moderate to rough seas.

Nan'ao, Shanwei, South of Hong Kong and Shangchuan Dao:
Southwest force 5 to 6.
Isolated squally showers and thunderstorms.
Moderate to rough seas.

Outlook for the next 48 hours
South to southwesterly winds of force 5 to 6. Isolated squally showers and thunderstorms.

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

Waglan Island Wind southwest force 4
  Visibility 15 Kilometres

Shantou Wind west-southwest force 1
  Visibility 28 Kilometres

Huangmaozhou Wind southwest force 4

Macau Wind south force 2
  Visibility 10 Kilometres

Xisha Wind south-southwest force 4
  Visibility 12 Kilometres


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 21/Jun/2018
HKO Readings & Radiation Level

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

Hong Kong Observatory
Maximum Air Temperature                     32.4 C
Minimum Air Temperature                     28.8 C
Grass Minimum Temperature                   27.0 C
Relative Humidity                        71 - 84 Percent
Rainfall                                      Trace 
Total rainfall since 1st January           546.7 mm
Against an average of                      944.7 mm

Other Stations                Min                  Max
King's Park                  28.1 C               32.8 C
Wong Chuk Hang               28.2 C               31.0 C
Ta Kwu Ling                  25.5 C               33.5 C
Lau Fau Shan                 26.6 C               33.2 C
Tai Po                       26.9 C               32.7 C
Sha Tin                      28.2 C               32.4 C
Tuen Mun                     27.8 C               32.5 C
Tseung Kwan O                27.3 C               33.5 C
Sai Kung                     27.1 C               34.2 C
Cheung Chau                  27.2 C               33.0 C
Chek Lap Kok                 28.7 C               33.9 C
Tsing Yi                     28.4 C               31.6 C
Shek Kong                    27.1 C               33.5 C
Tsuen Wan Ho Koon            27.1 C               29.9 C
Tsuen Wan Shing Mun Valley   27.7 C               30.6 C
Hong Kong Park               28.4 C               31.1 C
Shau Kei Wan                 28.2 C               32.5 C
Kowloon City                 27.9 C               32.7 C
Happy Valley                 28.7 C               32.5 C
Wong Tai Sin                 27.9 C               32.8 C
Stanley                      28.2 C               30.6 C
Kwun Tong                    28.4 C               32.1 C
Sham Shui Po                 27.6 C               31.7 C
Kai Tak Runway Park          28.4 C               32.5 C
Yuen Long Park               26.9 C               33.8 C

Duration of sunshine (King's Park):              7.5 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 11.
 

Yesterday's (20 Jun 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                             0.08
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                      0.13
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 20 Jun
Last revision date: <21 Jun 2018> 

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