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9-day Weather Forecast

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General Situation:

A southwesterly airstream will bring showers to the south China coast today. With showers easing off gradually, the weather will be brighter over Guangdong early next week. Tropical Cyclone Rumbia will move across Henan and weaken gradually today. Besides, Tropical Cyclone Soulik will move across the western North Pacific towards the seas south of Japan in the next couple of days.

18 Aug
(SAT)
19 Aug
(SUN)
20 Aug
(MON)
21 Aug
(TUE)
22 Aug
(WED)
23 Aug
(THU)
24 Aug
(FRI)
25 Aug
(SAT)
26 Aug
(SUN)
Sunny Intervals with Showers
Sunny intervals and a few showers.
Sunny Intervals with Showers
Mainly cloudy with a few showers and sunny intervals.
SUNNY PERIODS
Sunny periods and one or two showers.
SUNNY PERIODS
Sunny periods and one or two showers.
SUNNY PERIODS
Sunny periods and one or two showers.
Sunny Intervals with Showers
Sunny intervals, a few showers and isolated thunder-storms.
Light Rain
Mainly cloudy with a few showers and isolated thunder-storms.
Light Rain
Mainly cloudy with a few showers and isolated thunder-storms.
Light Rain
Mainly cloudy with 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]
South to southwest force 3 to 4.
South to southwest force 3 to 4.
Southwest force 3 to 4.
Southwest force 3 to 4.
Southwest force 3 to 4.
Southwest force 3 to 4.
Southwest force 3 to 4.
Southwest force 3 to 4.
Southwest force 3 to 4.
18 Aug
(SAT)
19 Aug
(SUN)
20 Aug
(MON)
21 Aug
(TUE)
22 Aug
(WED)
23 Aug
(THU)
24 Aug
(FRI)
25 Aug
(SAT)
26 Aug
(SUN)

Updated at: 09:50 HKT 18 Aug 2018


(Next update at: 11:30 HKT 18 Aug 2018)

Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region
Climatological information for 18 Aug - 26 Aug

Sea surface temperature
7 a.m. on 18 Aug 2018 at North Point :
28 °C
Soil temperatures
7 a.m. on 18 Aug 2018 at the Hong Kong Observatory:
0.5m depth:29.5°C
1.0m depth:29.9°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.