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9-day Weather Forecast

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General Situation:

A trough of low pressure will linger over the south China coast and the northern part of the South China Sea in the next couple of days, bringing unsettled weather to the region. With the subtropical ridge over the western North Pacific extending westwards, the weather over the south China coast will improve gradually in the latter part of this week.

31 Aug
(MON)
01 Sep
(TUE)
02 Sep
(WED)
03 Sep
(THU)
04 Sep
(FRI)
05 Sep
(SAT)
06 Sep
(SUN)
07 Sep
(MON)
08 Sep
(TUE)
Cloudy with occasional rain and a few squally thunderstorms.
Cloudy with occasional rain and a few squally thunder-storms.
Cloudy with showers and a few thunderstorms.
Cloudy with showers and a few thunder-storms.
Mainly cloudy with showers and isolated thunderstorms.
Mainly cloudy with showers and isolated thunder-storms.
Sunny intervals and a few showers.
Sunny intervals and a few showers.
Sunny periods and a few showers.
Sunny periods and a few showers.
Mainly fine.
Mainly fine.
Mainly fine.
Mainly fine.
Sunny periods and isolated showers.
Sunny periods and isolated showers.
Sunny periods and isolated 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 southeast force 3 to 4.
Southeast force 3.
South to southwest force 3.
Southwest force 3 to 4.
Southwest force 3 to 4.
Southwest force 3.
31 Aug
(MON)
01 Sep
(TUE)
02 Sep
(WED)
03 Sep
(THU)
04 Sep
(FRI)
05 Sep
(SAT)
06 Sep
(SUN)
07 Sep
(MON)
08 Sep
(TUE)

Updated at: 23:15 HKT 30 Aug 2015


(Next update at: 11:30 HKT 31 Aug 2015)

Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region
Climatological information for 31 Aug - 08 Sep

Sea surface temperature
2 p.m. on 30 Aug 2015 at North Point :
25 °C
Soil temperatures
7 a.m. on 30 Aug 2015 at the Hong Kong Observatory:
0.5m depth:30.0°C
1.0m depth:30.0°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.