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9-day Weather Forecast

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General Situation:

The dry northeast monsoon will bring fine weather to southern China in the next few days and next week, with relatively large temperature difference between day and night. The weather will be slightly cooler over the coastal areas of Guangdong early next week. Besides, Tropical Cyclone Lan over the western North Pacific will intensify progressively and move towards the seas south of Japan in the next few days.

19 Oct
(THU)
20 Oct
(FRI)
21 Oct
(SAT)
22 Oct
(SUN)
23 Oct
(MON)
24 Oct
(TUE)
25 Oct
(WED)
26 Oct
(THU)
27 Oct
(FRI)
SUNNY PERIODS
Mainly fine. Dry during the day.
SUNNY PERIODS
Mainly fine. Dry during the day.
SUNNY
Fine and dry.
SUNNY
Fine and dry.
SUNNY
Fine and dry.
SUNNY
Fine and dry.
SUNNY PERIODS
Mainly fine.
SUNNY PERIODS
Mainly fine.
SUNNY PERIODS
Mainly fine.

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 northeast force 4, occasionally force 5.
North force 4, occasionally force 5.
North to northeast force 4.
East to northeast force 4, force 5 later.
East to northeast force 4 to 5.
East to northeast force 4.
East to northeast force 3.
19 Oct
(THU)
20 Oct
(FRI)
21 Oct
(SAT)
22 Oct
(SUN)
23 Oct
(MON)
24 Oct
(TUE)
25 Oct
(WED)
26 Oct
(THU)
27 Oct
(FRI)

Updated at: 11:30 HKT 18 Oct 2017


(Next update at: 16:30 HKT 18 Oct 2017)

Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region
Climatological information for 19 Oct - 27 Oct

Sea surface temperature
7 a.m. on 18 Oct 2017 at North Point :
27 °C
Soil temperatures
7 a.m. on 18 Oct 2017 at the Hong Kong Observatory:
0.5m depth:28.6°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.