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9-day Weather Forecast

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General Situation:

Under the domination of the intense winter monsoon, it will be cold in the morning and at night, fine and dry during the day over Guangdong in the next couple of days. With the monsoon moderating, temperatures over the coastal areas of Guangdong will rise slightly towards the weekend. Besides, Tropical Cyclone Kai-tak is expected to move across the southern part of the South China Sea in the next few days.

19 Dec
(TUE)
20 Dec
(WED)
21 Dec
(THU)
22 Dec
(FRI)
23 Dec
(SAT)
24 Dec
(SUN)
25 Dec
(MON)
26 Dec
(TUE)
27 Dec
(WED)
Cold
Fine. Cold in the morning and at night. Very dry during the day.
Cold
Fine. Cold in the morning. Very dry during the day.
Cold
Fine. Cold in the morning. Very dry during the day.
SUNNY PERIODS
Mainly fine and dry. Cool in the morning.
SUNNY INTERVALS
Sunny intervals.
SUNNY PERIODS
Dry with sunny periods.
SUNNY PERIODS
Mainly fine and dry. Cool in the morning.
SUNNY PERIODS
Mainly fine and dry. Cool in the morning.
SUNNY PERIODS
Mainly fine and dry. Cool in the morning.

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 force 4 to 5, occasionally force 6 offshore and on high ground.
North force 4 to 5, occasionally force 6 offshore and on high ground.
North to northeast force 4 to 5.
East to northeast force 4 to 5.
East to northeast force 4.
North to northeast force 4, occasionally force 5.
Northeast force 4 to 5.
East to northeast force 4 to 5.
East to northeast force 4 to 5.
19 Dec
(TUE)
20 Dec
(WED)
21 Dec
(THU)
22 Dec
(FRI)
23 Dec
(SAT)
24 Dec
(SUN)
25 Dec
(MON)
26 Dec
(TUE)
27 Dec
(WED)

Updated at: 19:50 HKT 18 Dec 2017


(Next update at: 11:30 HKT 19 Dec 2017)

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

Sea surface temperature
2 p.m. on 18 Dec 2017 at North Point :
19 °C
Soil temperatures
7 a.m. on 18 Dec 2017 at the Hong Kong Observatory:
0.5m depth:21.6°C
1.0m depth:24.2°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.