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.
Skip Victoria Peak Tram queue and take the 15 bus from Central; same view, air-con, and locals do it. Cha chaan teng diners serve pineapple bun with butter (bo lo bao) and Hong Kong milk tea stronger than Western espresso. Chungking Mansions in TST is safe and has the city's best South Asian food. Octopus card works on everything including 7-Eleven. Cantonese swearing is an art form; don't attempt.
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
We may earn a small commission on any purchase — it doesn't change the price you pay.
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→Estimated September trip to Hong Kong
Shoulder-season pricing — a balance of price and conditions. Rule-based estimates from a couple based in London — actual prices vary.
We may earn a commission if you book through these links, at no cost to you. Estimates use rule-based averages; check partner sites for live pricing.
Delayed flight to Hong Kong?
September sees 277mm of rain here — delays happen. Check if you're eligible for compensation. EU regulations cover flights departing from or arriving in the EU/UK.
Check compensation eligibility →Free check · Only pay if you get paid · Powered by Compensair.
Plan your Hong Kong trip
Handpicked services from partners we trust. One tab for everything you'll need after the flight is booked.
Compare rooms in Hong Kong on Booking.com.
Skip-the-line tickets, day trips, food walks and guided tours.
Compare fares with cashback on every booking.
Instant data on arrival — no roaming charges, no SIM swap.
Flexible monthly coverage for trips of any length.
Compare 900+ rental brands with free cancellation.
Book a driver in advance — fixed price, no queue.
We may earn a commission if you book through these links, at no cost to you.
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 an 11-year climate record (2015–2025).
See the full best-time-to-visit guide for Hong KongOther places with a similar climate right now
Hong Kong in September — FAQ
Q01Should I visit Hong Kong in September?
Should I visit Hong Kong in September?
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. October-December delivers 22C low humidity and clear Peak views; Chinese New Year February shuts everything 5 days, Sevens rugby April packs hotels.
Q02What temperatures should I expect in Hong Kong during September?
What temperatures should I expect in Hong Kong during 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 11 complete years of daily records (2015–2025, Open-Meteo Archive).
Q03Is September a rainy month in Hong Kong?
Is September a rainy month in Hong Kong?
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. May-June black rainstorms drop 100mm/hour; escalators to Mid-Levels shut, MTR floods at Central, and hillside landslides close Peak Tram.
Q04How should I dress for Hong Kong in September?
How should I dress 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 11 complete years of weather averages for this specific month. A folding hand fan; MTR AC is arctic but street-level 90% humidity means you're between climates every 3 minutes.
Q05Is September a busy travel month for Hong Kong?
Is September a busy travel month for Hong Kong?
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. Skip Victoria Peak Tram queue and take the 15 bus from Central; same view, air-con, and locals do it. Cha chaan teng diners serve pineapple bun with butter (bo lo bao) and Hong Kong milk tea stronger than Western espresso. Chungking Mansions in TST is safe and has the city's best South Asian food. Octopus card works on everything including 7-Eleven. Cantonese swearing is an art form; don't attempt.