Hong Kong weather in September (Hong Kong)
Curious about the September weather in Hong Kong? Wondering if it's an optimal time for a visit? This page provides detailed information on the weather conditions for that month.
In September, Hong Kong generally has very high temperatures and heavy rainfall. September is a summer month. Throughout the daytime, temperatures often hover around 31°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 26°C. Keep in mind, these temperatures are averages, and some days might be even warmer. Dress suitably to manage the heat.
Hong Kong in September falls under the rainy season with heavy rainfall, averaging around 222 mm for the month. Based on our climate data of the past 30 years, about 14 days of rain are anticipated.
The area enjoys a balanced 175 hours of sunlight. Ensuring it's neither too overcast nor too sunny.
If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit Hong Kong. January, February, March, October, November and December typically offer the most optimal weather. In contrast, June, July, August and September tend to have less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Hong Kong climate page with graphs.
Hong Kong, monthly averages in September
Min Temperature
26°C
Max Temperature
31°C
Water Temperature
28°C
Chance of Rain
48%
Precipitation
222 mm
Rainy days
14 days
Humidity
78%
Windspeed
7 km/h
Sunshine
175 hours
Percentage Sunshine
47%
Where to go in Hong Kong in September
Find out more about the weather in Hong Kong in September and which places have the best weather conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in Hong Kong in September?
It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case. With a water temperature of around 28°C this is a great month to swim so bring your swimwear.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do in September.
Interested in more climate information?
Weather and Climate provides you with all the information you need about the climate in Hong Kong.
Our site offers climate and forecast data for every country in the world. Are you going to Hong Kong? On this website you can find historical weather averages for many cities in Hong Kong. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.
