Where to Go for Great Weather
Hong Kong · Month guide

Hong Kong in September

Around 31 °C with 269 mm of rain and 5.8 hours of sun a day.

September is a challenging month for Hong Kong overall; regional choices matter most. Around 31 °C with 269 mm of rain and 5.8 hours of sun a day. Use the regional grid below to find where this month works best — national averages hide the swings between coast, highlands, and inland.

Match verdictMatch: Acceptable. Hong Kong · September.
Acceptable
Hong Kong · September
What the weather usually does

Hong Kong · typical month

  • Day / night
    26 – 31 °C
    Year range 14 – 31 °C
  • Rainfall
    269 mm
    Year range 17 – 344 mm
  • Sunshine
    5.8 hr / day
    Year range 4.7 – 6.1 hr / day
Compare with another destination
18 regions · current month

Hong Kong, taken apart

Safety · 4 governments

What the governments say about Hong Kong

Combined advisory · most-cautious-wins
Exercise increased caution
Highest level across 4 governments · Advisory last changed
See breakdown by country
AU

Exercise increased caution

Changed Checked www.smartraveller.gov.au
DE

Exercise normal precautions

Changed Checked www.auswaertiges-amt.de
US

Exercise increased caution

Changed Checked travel.state.gov
Climate at a glance · 10-year ERA5

A decade of weather, in one page

Temperature°C
Temperature · 12-month climatologyHong Kong. Average daytime high by month in °C. Lowest in January (18.9), highest in July (31.3). Monthly means: 18.9, 19.6, 22.5, 25.5, 28.4, 30.2, 31.3, 30.7, 30.6, 27.9, 24.3, 20.2.
— daytime high— overnight low▬ typical range
View data table
MonthAverage daytime high (°C)Average overnight low (°C)Typical lowTypical high
January18.913.97.423.3
February19.614.78.724.8
March22.518.113.126.9
April25.521.616.829.2
May28.424.821.232.2
June30.226.925.432.2
July31.327.526.134.0
August30.726.925.733.3
September30.626.524.733.2
October27.923.520.031.5
November24.319.714.627.9
December20.214.89.224.8
Rainfallmm
Rainfall · 12-month climatologyHong Kong. Rainfall by month in mm. Lowest in December (17), highest in August (344). Monthly means: 41, 41, 81, 117, 229, 314, 242, 344, 269, 156, 55, 17.
View data table
MonthRainfall (mm)
January41
February41
March81
April117
May229
June314
July242
August344
September269
October156
November55
December17
Sunshinehr / day
Sunshine · 12-month climatologyHong Kong. Sunshine hours by month in hr / day. Lowest in June (4.7), highest in October (6.1). Monthly means: 5.0, 5.0, 4.8, 5.2, 5.0, 4.7, 6.0, 4.8, 5.8, 6.1, 5.5, 5.7.
View data table
MonthSunshine hours (hr / day)
January5.0
February5.0
March4.8
April5.2
May5.0
June4.7
July6.0
August4.8
September5.8
October6.1
November5.5
December5.7
Windkm/h
Wind · 12-month climatologyHong Kong. Average wind speed by month in km/h. Lowest in September (10.2), highest in December (14.5). Monthly means: 13.7, 13.7, 13.2, 12.1, 11.5, 11.8, 12.0, 10.3, 10.2, 14.4, 13.7, 14.5.
— average▬ typical range
View data table
MonthAverage wind speed (km/h)Typical lowTypical high
January13.77.722.3
February13.76.821.4
March13.25.920.7
April12.16.420.1
May11.55.519.3
June11.86.319.2
July12.06.220.2
August10.34.619.3
September10.24.220.9
October14.46.126.4
November13.77.521.5
December14.57.523.5
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