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9-day Weather Forecast

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General Situation:

A trough of low pressure will bring heavy showers and squally thunderstorms to the south China coast in the next couple of days. With the trough weakening later this week, the weather will improve and it will be very hot over the coast of Guangdong. Besides, an area of low pressure will bring unsettled weather to the western North Pacific to the east of the Philippines today and tomorrow.

19 Aug
(MON)
20 Aug
(TUE)
21 Aug
(WED)
22 Aug
(THU)
23 Aug
(FRI)
24 Aug
(SAT)
25 Aug
(SUN)
26 Aug
(MON)
27 Aug
(TUE)
Sunny Intervals with Showers
Sunny intervals. A few showers and thunder-storms in the afternoon.
Rain
Cloudy with showers and squally thunder-storms.
Rain
Mainly cloudy with occasional showers. Isolated thunder-storms at first.
Sunny Intervals with Showers
Sunny intervals and a few showers.
Sunny Periods with A Few Showers
Mainly fine and very hot. Isolated showers and thunder-storms later.
Sunny Periods with A Few Showers
Very hot with sunny periods. Isolated showers and thunder-storms later.
Light Rain
Mainly cloudy with a few showers.
Light Rain
Mainly cloudy with a few showers.
Sunny Intervals with Showers
Sunny intervals and a few showers.

Forecast: maximum temperature minimum temperature

50% of the days have maximum temperatures falling within this range (based on 30-year climate data)[note 1]
50% of the days have minimum temperatures falling within this range (based on 30-year climate data)[note 1]

Forecast: maximum relative humidity minimum relative humidity

50% of the days have maximum relative humidity falling within this range (based on 30-year climate data)[note 1]
50% of the days have minimum relative humidity falling within this range (based on 30-year climate data)[note 1]
South force 3.
South force 3.
Southwest force 2 to 3.
South force 3.
Southwest force 3 to 4.
Southwest force 3 to 4.
19 Aug
(MON)
20 Aug
(TUE)
21 Aug
(WED)
22 Aug
(THU)
23 Aug
(FRI)
24 Aug
(SAT)
25 Aug
(SUN)
26 Aug
(MON)
27 Aug
(TUE)

Updated at: 07:50 HKT 19 Aug 2019


(Next update at: 11:30 HKT 19 Aug 2019)

Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region
Climatological information for 19 Aug - 27 Aug

Sea surface temperature
7 a.m. on 19 Aug 2019 at North Point :
26 °C
Soil temperatures
7 a.m. on 19 Aug 2019 at the Hong Kong Observatory:
0.5m depth:30.0°C
1.0m depth:30.3°C

Note:
  1. This middle 50% range (between 25th and 75th percentiles) is calculated based on the maximum/minimum temperature and relative humidity data within a 5-day period centred on that day in the 30 years from 1981 to 2010.
  2. "9-day Weather Forecast" provides general indications of the trends in weather for the coming 9 days. For detailed description of today's weather forecast, please refer to "Local Weather Forecast".
  3. The accuracy of forecast generally decreases with forecast period. The average accuracy of weather forecast for the next one to three days, four to seven days, and eight to nine days are about 90%, 85% and 80% respectively.
  4. The accuracy of forecast also varies for different weather systems in different seasons. Generally speaking, weather in spring and summer such as fog, tropical cyclone and severe convective weather is more changeable, resulting in higher uncertainty of forecast.