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9-day Weather Forecast

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General Situation:

The anticyclone aloft over southeastern China will weaken slightly in the next couple of days. A southerly airstream will continue to bring showers to the coast of Guangdong. With the subtropical ridge over the western North Pacific extending westwards, the weather will be generally fine and very hot over Guangdong during the weekend and early next week.

29 Jul
(WED)
30 Jul
(THU)
31 Jul
(FRI)
01 Aug
(SAT)
02 Aug
(SUN)
03 Aug
(MON)
04 Aug
(TUE)
05 Aug
(WED)
06 Aug
(THU)
Mainly cloudy with a few showers. There will be sunny intervals.
Mainly cloudy with a few showers. There will be sunny intervals.
Mainly cloudy with a few showers and isolated thunderstorms.
Mainly cloudy with a few showers and isolated thunder-storms.
Sunny intervals and a few showers.
Sunny intervals and a few showers.
Mainly fine and very hot. Isolated showers at first.
Mainly fine and very hot. Isolated showers at first.
Mainly fine and very hot.
Mainly fine and very hot.
Mainly fine and very hot.
Mainly fine and very hot.
Fine and very hot.
Fine and very hot.
Fine and very hot.
Fine and very hot.
Mainly fine and very hot.
Mainly fine and very hot.

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 to southeast force 3.
Southeast force 3.
29 Jul
(WED)
30 Jul
(THU)
31 Jul
(FRI)
01 Aug
(SAT)
02 Aug
(SUN)
03 Aug
(MON)
04 Aug
(TUE)
05 Aug
(WED)
06 Aug
(THU)

Updated at: 16:30 HKT 28 Jul 2015


(Next update at: 11:30 HKT 29 Jul 2015)

Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region
Climatological information for 29 Jul - 06 Aug

Sea surface temperature
2 p.m. on 28 Jul 2015 at North Point :
27 °C
Soil temperatures
7 a.m. on 28 Jul 2015 at the Hong Kong Observatory:
0.5m depth:28.8°C
1.0m depth:28.8°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.