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9-day Weather Forecast

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General Situation:

The subtropical ridge will bring generally fine and hot weather over southern China today and tomorrow. Under the influence of the northeast monsoon, the weather will be slightly cooler with a few rain patches over the south China coast early next week.

21 Sep
(FRI)
22 Sep
(SAT)
23 Sep
(SUN)
24 Sep
(MON)
25 Sep
(TUE)
26 Sep
(WED)
27 Sep
(THU)
28 Sep
(FRI)
29 Sep
(SAT)
SUNNY PERIODS
Mainly fine and hot.
Sunny Periods with A Few Showers
Sunny periods and one or two showers.
Light Rain
Mainly cloudy with a few rain patches.
Light Rain
Mainly cloudy with a few rain patches.
Light Rain
Mainly cloudy with one or two rain patches.
SUNNY INTERVALS
Sunny intervals. One or two rain patches in the morning and at night.
SUNNY INTERVALS
Sunny intervals.
SUNNY INTERVALS
Sunny intervals.
SUNNY PERIODS
Sunny periods.

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]
Northeast force 2 to 3.
Northeast force 3.
Northeast force 3 to 4.
East force 4 to 5, occasionally force 6 offshore.
East to northeast force 3 to 4.
East to northeast force 3 to 4.
Northeast force 4.
21 Sep
(FRI)
22 Sep
(SAT)
23 Sep
(SUN)
24 Sep
(MON)
25 Sep
(TUE)
26 Sep
(WED)
27 Sep
(THU)
28 Sep
(FRI)
29 Sep
(SAT)

Updated at: 00:00 HKT 21 Sep 2018


(Next update at: 11:30 HKT 21 Sep 2018)

Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region
Climatological information for 21 Sep - 29 Sep

Sea surface temperature
2 p.m. on 20 Sep 2018 at North Point :
28 °C
Soil temperatures
7 a.m. on 20 Sep 2018 at the Hong Kong Observatory:
0.5m depth:28.7°C
1.0m depth:28.9°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.