Hong Kong weather in September
“Mild and bright — an underrated time to visit.”
Roughly 21 rainy days across the month, on average.
September in Hong Kong is hot, humid, and wet. Expect average highs of 29.2°C (84.6°F) and lows of 25.1°C (77.2°F), with roughly 277mm of rainfall spread across 21 rainy days. Despite frequent showers, you'll still enjoy around 9.2 hours of sunshine daily, making it a transitional month between summer and autumn. The combination of heat and moisture creates a tropical atmosphere that requires careful planning.
This is the tail end of Hong Kong's typhoon season, so weather can be unpredictable. The city is quieter than peak tourist months, with fewer crowds at major attractions like Victoria Peak and the Star Ferry. Local festivals are less prominent in September, but the slightly cooler evenings compared to July and August make exploring neighborhoods like Central and Causeway Bay more comfortable for extended periods.
If you're visiting Hong Kong in September 2026, pack waterproof gear and quick-dry clothing. The lower tourist numbers mean better hotel rates and shorter queues, making it ideal for budget-conscious travelers. Avoid the worst of the rain by checking typhoon forecasts, and plan indoor activities like museum visits and dim sum experiences for rainy afternoons.
What to pack for Hong Kong in September
- •Breathable cotton or linen, and a broad-brimmed hat
- •A compact travel umbrella — one you'll actually carry
- •Reef-safe sunscreen and polarised sunglasses
- •Comfortable, broken-in walking shoes
- •A small daypack that won't look like a tourist beacon
What to pack for Hong Kong in September
- →Quick-dry travel shirtAmazon · shop this
- →UPF sun hatAmazon · shop this
- →Packable rain jacketAmazon · shop this
- →Compact travel umbrellaAmazon · shop this
- →Waterproof dry bagAmazon · shop this
- →Reef-safe sunscreen SPF 50Amazon · shop this
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Where to stay in Hong Kong
We don't review individual hotels — plenty of people do that well. What we do is send you to compare rooms in Hong Kong across trusted platforms.
Compare hotels on Booking.com→Things worth doing
Visit Star Ferry terminals, explore wet markets in Mong Kok, hike Dragon's Back trail early mornings before rain, enjoy dim sum at Tim Ho Wan, browse Temple Street Night Market.
September vs. the rest of the year
How this month compares in Hong Kong. Tap any month to read more.
highlighted months are among the best time to visit.
Best time to visit Hong Kong
While September has its own character in Hong Kong, the data-backed best months to visit Hong Kong are January, February, November, December. These months combine the most favourable temperatures, rainfall, and sunshine across a ten-year climate record.
See the full best-time-to-visit guide for Hong KongOther places with a similar climate right now
Hong Kong in September — FAQ
Q01Is September a good time to visit Hong Kong?
Is September a good time to visit Hong Kong?
It is a challenging month — you may want to consider another time of year. In September, Hong Kong averages a high of 29°C (85°F) and a low of 25°C (77°F), with 277mm of rainfall across roughly 21 rainy days.
Q02What is the average temperature in Hong Kong in September?
What is the average temperature in Hong Kong in September?
The average high temperature in Hong Kong during September is 29°C (85°F), with an average low of 25°C (77°F). These figures are averaged from ten years of daily records (2015–2024, Open-Meteo Archive).
Q03How many rainy days does Hong Kong have in September?
How many rainy days does Hong Kong have in September?
Hong Kong averages approximately 21 rainy days in September, with a total monthly rainfall of about 277mm. This is based on daily precipitation records where days with 1mm or more of rain are counted as rainy days.
Q04What should I pack for Hong Kong in September?
What should I pack for Hong Kong in September?
For Hong Kong in September, pack light, breathable clothing (cotton or linen), a compact umbrella or waterproof jacket, sunscreen and sunglasses, comfortable walking shoes. These recommendations are based on the ten-year weather averages for this specific month.
Q05How crowded is Hong Kong in September?
How crowded is Hong Kong in September?
Tourist crowds in Hong Kong during September are typically moderate — shoulder season, a sweet spot between crowds and weather. Consider this when planning accommodation — prices track crowd levels closely.