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The weather in September in Hong Kong
It's hot in September in Hong Kong with an average temperature of 32°C. Temperatures this month range from a low of 31°C to a high of 33°C. At night, you can expect temperatures between 26°C and 27°C.
Looking for sun? September isn’t a good month to be in Hong Kong. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Hong Kong. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 36°C in 2021, Hong Kong reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 26°C in 2016. The extreme nighttime temperatures ranged from a lowest recorded value of 22°C to a highest value of 29°C.
Rainfall amount
In September, there is an average of 202 mm of precipitation, spread over 21 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
Daily weather in September for Hong Kong
Click on any day in September to get detailed info about the usual weather on that day in Hong Kong. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Hong Kong | New York | |
|---|---|---|
| Average temperature | 32°C | 27°C |
| Max. temperature | 33°C | 31°C |
| Min. temperature | 26°C | -5°C |
| Total precipitation | 202 mm | 57 mm |
| Rainy days | 21 days | 9 days |
Start of September
The month of September starts in Hong Kong with hot temps, averaging around 32°C during the day and nights around 27°C.
Mid September
By mid-September, daytime temps rise to around 33°C, with nights around 27°C. There’s a high chance of precipitation during this time.
End of September
By the end of September, the average daytime temperature in Hong Kong is around 33°C, while nighttime temps are about 27°C. A shower might pop up, but overall, the weather will be dry and sunny.
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UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Hong Kong for all months and discover the best travel time
The climate in Hong Kong is based on weather data from Hong Kong. Other spots might have different weather. You can check out all destinations in Hong Kong to get the full picture of the climate.
Temperature charts
These charts show the average temperatures in September in Hong Kong. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Hong Kong
Temperature in September in Hong Kong over the years
Precipitation charts
These charts show the average amount of precipitation in September in Hong Kong. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in Hong Kong
Total precipitation in September in Hong Kong over the years
Daily UV index in September in Hong Kong
This chart shows the average daily UV index in September in Hong Kong, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in September in Hong Kong
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Average weather in Hong Kong by month
Click on a month below to see detailed weather info for Hong Kong. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.