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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.

Temperatures

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.

Precipitation

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.

Average sunshine

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 TemperatureMin Temperature 26°C  
Max TemperatureMax Temperature 31°C  
Water TemperatureWater Temperature 28°C  
Chance of RainChance of Rain 48%  
PrecipitationPrecipitation 222 mm  
Rainy daysRainy days 14 days  
HumidityHumidity 78%  
WindspeedWindspeed 7 km/h  
SunshineSunshine 175 hours  
Percentage SunshinePercentage Sunshine 47%  

Where to go in Hong Kong in September

Find out more about the weather in Hong Kong and which places have the best travel conditions in this month.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

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.

Swimming
7/10
Cycling
7/10
Walking
7/10
Camping
7/10
Outdoor sports
7/10

Interested in more climate information?

This site 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 travel conditions. Find out where to go with our weather planner.