Weather in Hong Kong in September
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Book now, pay at pickup — compare Hertz, Avis, Budget, Sixt and 800+ rental companies for September in Hong Kong.
Compare car hire prices → Affiliate link — we earn a commission at no extra cost to youIn September, Hong Kong sees average highs of 29.7°C (85.5°F) and lows of 25.7°C. Conditions are hot and extremely wet, with heavy downpours most days, with roughly 9.0 hours of sunshine a day. It is one of the best months of the year to visit. For the complete picture, see the best time to visit Hong Kong — every month compared. Once you know when to go, find your Hong Kong packing list at 247PackingList.
Get ready for Hong Kong in September
Search flights to Hong Kong
Compare 100+ airlines for September — one search, best price.
Search Flights →Travel clothing layers
Pack layers — temperatures can vary significantly between day and night.
Check Price →What to pack for Hong Kong in September
- Light layers
- Sunscreen
- T-shirts and light trousers or shorts
- Compact travel umbrella
- Waterproof jacket
- Quick-dry clothing
Compare all months in Hong Kong
| Month | High | Rain | Rating |
|---|---|---|---|
| January | 19.2°C | 17.2mm | 10/10 |
| February | 19.9°C | 68.8mm | 10/10 |
| March | 23.0°C | 84.5mm | 10/10 |
| April | 24.5°C | 88.5mm | 10/10 |
| May | 27.5°C | 273.6mm | 8/10 |
| June | 29.1°C | 352.1mm | 8/10 |
| July | 30.4°C | 267.5mm | 8/10 |
| August | 29.7°C | 380.3mm | 8/10 |
| September | 29.7°C | 319.0mm | 8/10 |
| October | 27.1°C | 260.0mm | 8/10 |
| November | 24.8°C | 82.1mm | 10/10 |
| December | 20.1°C | 28.3mm | 10/10 |
Full month-by-month guide: best time to visit Hong Kong →
For facts about Hong Kong — currency, language and dialling code — see our Hong Kong country guide at 247CountryInfo. Travellers also find it useful to keep a Hong Kong travel guide to hand. Check clothing sizes in Hong Kong before you shop.
Frequently Asked Questions
Is September a good time to visit Hong Kong?
September rates 8/10 for visiting Hong Kong — good time to visit. Expect average highs of 29.7°C, 319.0mm of rain across the month and about 9.0 hours of daily sunshine.
What is the temperature in Hong Kong in September?
In September, Hong Kong has average highs of 29.7°C (85.5°F) and average lows of 25.7°C (78.3°F).
Does it rain in Hong Kong in September?
Yes — September is one of the wetter months in Hong Kong, averaging 319.0mm of rain over roughly 22 rainy days. Pack for heavy showers.
What should I wear in Hong Kong in September?
For Hong Kong in September (29.7°C highs / 25.7°C lows), pack light layers plus sunscreen, t-shirts and light trousers or shorts, compact travel umbrella.
More essentials for Hong Kong in September
Packing cubes
Keep the bag organised whatever the weather — compression cubes for every size.
Check Price →Travel first aid kit
Compact TSA-friendly kit for peace of mind wherever you travel.
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Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.