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9-day Weather Forecast

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General Situation:

Under the influence of the subtropical ridge, it will be mainly fine and very hot over southeastern China today. A broad area of low pressure is expected to develop gradually over the central part of the South China Sea in the next couple of days, bringing unsettled weather to the central and northern parts of the South China Sea. Besides, the tropical cyclone over the seas east of the Philippines will move across the western North Pacific in the next couple of days.

26 Jul
(WED)
27 Jul
(THU)
28 Jul
(FRI)
29 Jul
(SAT)
30 Jul
(SUN)
31 Jul
(MON)
01 Aug
(TUE)
02 Aug
(WED)
03 Aug
(THU)
Hot
Mainly fine apart from isolated showers. It will be very hot.
Sunny Intervals with Showers
Sunny intervals and a few showers.
Light Rain
Mainly cloudy with a few showers and thunder-storms.
Sunny Intervals with Showers
Sunny intervals and a few showers.
Sunny Intervals with Showers
Sunny intervals and a few showers.
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 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]
East force 3 to 4, force 5 offshore later.
East force 4, occasionally force 5.
West force 3.
West force 3.
West force 3.
West force 3.
26 Jul
(WED)
27 Jul
(THU)
28 Jul
(FRI)
29 Jul
(SAT)
30 Jul
(SUN)
31 Jul
(MON)
01 Aug
(TUE)
02 Aug
(WED)
03 Aug
(THU)

Updated at: 07:45 HKT 26 Jul 2017


(Next update at: 11:30 HKT 26 Jul 2017)

Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region
Climatological information for 26 Jul - 03 Aug

Sea surface temperature
7 a.m. on 26 Jul 2017 at North Point :
27 °C
Soil temperatures
7 a.m. on 26 Jul 2017 at the Hong Kong Observatory:
0.5m depth:29.9°C
1.0m depth:29.5°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.