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9-day Weather Forecast

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General Situation:

A dry continental airstream will bring fine and hot weather to southern China in the next few days. An easterly airstream is expected to affect the coast of Guangdong early next week. Besides, Tropical Cyclone Tapah will intensify gradually, and move across the Ryukyu Islands and the East China Sea in the next couple of days.

20 Sep
(FRI)
21 Sep
(SAT)
22 Sep
(SUN)
23 Sep
(MON)
24 Sep
(TUE)
25 Sep
(WED)
26 Sep
(THU)
27 Sep
(FRI)
28 Sep
(SAT)
SUNNY
Fine and dry. Very hot during the day.
Dry
Fine and dry.
Dry
Fine and dry.
SUNNY PERIODS
Mainly fine. Dry during the day. One or two showers at night.
SUNNY PERIODS
Sunny periods. One or two showers in the morning.
SUNNY PERIODS
Sunny periods.
Sunny Periods with A Few Showers
Sunny periods and one or two showers.
Sunny Periods with A Few Showers
Sunny periods and one or two showers.
Sunny Intervals with Showers
Sunny intervals and one or two 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]
North to northeast force 3 to 4.
North force 4, occasionally force 5.
North force 4, occasionally force 5.
Northeast force 4, becoming east force 4, occasionally force 5 offshore later.
East force 4, occasionally force 5 offshore.
East force 4.
Northeast force 3 to 4.
Northeast force 3.
Northeast force 3.
20 Sep
(FRI)
21 Sep
(SAT)
22 Sep
(SUN)
23 Sep
(MON)
24 Sep
(TUE)
25 Sep
(WED)
26 Sep
(THU)
27 Sep
(FRI)
28 Sep
(SAT)

Updated at: 16:30 HKT 19 Sep 2019


(Next update at: 11:30 HKT 20 Sep 2019)

Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region
Climatological information for 20 Sep - 28 Sep

Sea surface temperature
2 p.m. on 19 Sep 2019 at North Point :
29 °C
Soil temperatures
7 a.m. on 19 Sep 2019 at the Hong Kong Observatory:
0.5m depth:30.6°C
1.0m depth:30.4°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.