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9-day Weather Forecast

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General Situation:

The trough of low pressure affecting the south China coast is expected to weaken tomorrow, and a southwesterly airstream will bring hot weather to the region. Under the influence of an upper-air disturbance, there will be showers over Guangdong in the following couple of days. The anticyclone aloft is expected to cover southeastern China in the latter part of next week, the weather will improve over the region. Besides, Tropical Cyclone Danas will move across the Korean Peninsula and evolve into an extratropical cyclone today and tomorrow.

21 Jul
(SUN)
22 Jul
(MON)
23 Jul
(TUE)
24 Jul
(WED)
25 Jul
(THU)
26 Jul
(FRI)
27 Jul
(SAT)
28 Jul
(SUN)
29 Jul
(MON)
Sunny Intervals with Showers
Sunny intervals and a few showers.
Sunny Intervals with Showers
Sunny intervals and a few showers.
Light Rain
Mainly cloudy with a few showers and isolated thunder-storms.
Sunny Intervals with Showers
Mainly cloudy with a few showers. Sunny intervals in the afternoon.
Sunny Intervals with Showers
Sunny intervals and a few showers.
Sunny Periods with A Few Showers
Sunny periods and a few showers.
Sunny Periods with A Few Showers
Sunny periods and a few showers.
Sunny Periods with A Few Showers
Sunny periods and isolated showers.
Sunny Periods with A Few Showers
Sunny periods and isolated 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 to southwest force 3 to 4.
South to southwest force 3 to 4.
South force 4.
South force 4.
South force 3.
South to southeast force 3.
South to southeast force 3.
21 Jul
(SUN)
22 Jul
(MON)
23 Jul
(TUE)
24 Jul
(WED)
25 Jul
(THU)
26 Jul
(FRI)
27 Jul
(SAT)
28 Jul
(SUN)
29 Jul
(MON)

Updated at: 16:30 HKT 20 Jul 2019


(Next update at: 11:30 HKT 21 Jul 2019)

Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region
Climatological information for 21 Jul - 29 Jul

Sea surface temperature
2 p.m. on 20 Jul 2019 at North Point :
25 °C
Soil temperatures
7 a.m. on 20 Jul 2019 at the Hong Kong Observatory:
0.5m depth:30.3°C
1.0m depth:29.8°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.