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9-day Weather Forecast

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General Situation:

The tropical depression over the northern part of the South China Sea will interact with Tropical Cyclone Nesat. The tropical depression will linger around the northern part of the South China Sea today and tomorrow, moving towards the vicinity of Taiwan Strait afterwards. Nesat will move towards Taiwan and southeastern China in the next couple of days. Under the influence of a continental airstream, it will be very hot over the coast of Guangdong in the next couple of days. A southwesterly airstream is expected to bring showers to the south China coast early next week.

29 Jul
(SAT)
30 Jul
(SUN)
31 Jul
(MON)
01 Aug
(TUE)
02 Aug
(WED)
03 Aug
(THU)
04 Aug
(FRI)
05 Aug
(SAT)
06 Aug
(SUN)
SUNNY PERIODS
Mainly fine and very hot apart from isolated showers.
Sunny Periods with A Few Showers
Very hot and hazy with sunny periods. A few showers and thunder-storms later.
Rain
Mainly cloudy with occasional showers and a few thunder-storms.
Light Rain
Mainly cloudy with 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
Sunny periods and isolated showers.
SUNNY PERIODS
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]
North to northeast force 4, occasionally force 5.
North to northwest force 3 to 4, occasionally force 5 offshore.
West to southwest force 4 to 5.
Southwest force 4.
Southwest force 3 to 4.
Southwest force 3 to 4.
Southwest force 3 to 4.
Southwest force 3.
Southwest force 3.
29 Jul
(SAT)
30 Jul
(SUN)
31 Jul
(MON)
01 Aug
(TUE)
02 Aug
(WED)
03 Aug
(THU)
04 Aug
(FRI)
05 Aug
(SAT)
06 Aug
(SUN)

Updated at: 16:30 HKT 28 Jul 2017


(Next update at: 11:30 HKT 29 Jul 2017)

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 2017 at North Point :
28 °C
Soil temperatures
7 a.m. on 28 Jul 2017 at the Hong Kong Observatory:
0.5m depth:30.1°C
1.0m depth:29.7°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.