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9-day Weather Forecast

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General Situation:

A trough of low pressure will bring thundery showers to Guangdong today. An easterly airstream is expected to affect the coast of southeastern China midweek this week. Temperatures will drop slightly and the weather will improve over the region. With the easterly airstream moderating gradually, there will be a few showers over southern China in the latter part of this week.

20 May
(MON)
21 May
(TUE)
22 May
(WED)
23 May
(THU)
24 May
(FRI)
25 May
(SAT)
26 May
(SUN)
27 May
(MON)
28 May
(TUE)
Rain
Mainly cloudy with occasional showers and a few squally thunder-storms.
Sunny Intervals with Showers
Mainly cloudy. A few showers at first. Bright periods during the day.
SUNNY PERIODS
Sunny periods.
Sunny Periods with A Few Showers
Sunny periods and one or two showers.
Sunny Intervals with Showers
Sunny intervals and a few showers.
Light Rain
Mainly cloudy with a few showers.
Light Rain
Mainly cloudy with a few showers.
Sunny Intervals with Showers
Mainly cloudy with sunny intervals and a few showers.
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]
Southwest force 3 to 4, becoming northeast force 4 later.
East to northeast force 4, force 5 offshore later.
East force 4, occasionally force 5 offshore.
East force 4.
East to southeast force 4.
East to southeast force 4.
Southeast force 4.
South to southeast force 3 to 4.
20 May
(MON)
21 May
(TUE)
22 May
(WED)
23 May
(THU)
24 May
(FRI)
25 May
(SAT)
26 May
(SUN)
27 May
(MON)
28 May
(TUE)

Updated at: 00:00 HKT 20 May 2019


(Next update at: 11:30 HKT 20 May 2019)

Automatic Regional Weather Forecast in Hong Kong & Pearl River Delta Region
Climatological information for 20 May - 28 May

Sea surface temperature
2 p.m. on 19 May 2019 at North Point :
27 °C
Soil temperatures
7 a.m. on 19 May 2019 at the Hong Kong Observatory:
0.5m depth:27.9°C
1.0m depth:26.5°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.