Hong Kong Weather in September: Temperature, Rainfall and Travel Tips

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Current Temperature in Hong Kong

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Tomorrow
24 Nov, 2025
19
Clear
19 ~ 26℃
24 Nov, 2025
Clear
19℃ / 26℃
25 Nov, 2025
Clear
17℃ / 26℃
26 Nov, 2025
Cloudy
17℃ / 23℃
27 Nov, 2025
Cloudy
15℃ / 24℃
28 Nov, 2025
Cloudy
16℃ / 23℃
29 Nov, 2025
Clear
18℃ / 24℃
Hong Kong Weather - Best Times to Visit Hong Kong
23 Nov, 2025 Hong KongWeather:Clear.Northeasterly wind:0–10 km/hour.Humidity:47%.Sunrise/Sunset:06:40/17:39
Hong KongTravel:Suitable.Umbrella:Not required.UV Strength:Low
Hong Kong has a monsoon-influenced subtropical climate which means it is warm and humid all year round, but its coastal location means the weather can be changeable, including sudden thunderstorms and possible typhoons (late-May to mid-September). The coldest months are December to February, when the temperature may fall to 10 °C (50 °F). Summer is long, hot, and rainy, with temperatures averaging between 26-32 °C (79-90 °F). On top of that, visitors can expect frequent showers as it is also the rainy season. Weather in Spring is often pleasant but changeable, so it is considered Shoulder Season with fewer crowds. So the most recommended time to visit Hong Kong is from October to early December.Though Hong Kong is an all-year destination, the Peak Season for tourism is October-December, as well as Chinese New Year (late January or early February). There are many religious festivals and events (trade fairs) in the city, so crowds will increase dramatically. If high humidity doesn’t bother you, the cheapest time to visit Hong Kong is in May and June. This is the best time to look for deals on flights and hotels. Conversely, in the peak months of September to December, flights and accommodations are at their most expensive.
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Hong Kong Weather in September

Hong Kong sits on the southeastern coast of China and has a humid subtropical climate that feels familiar to many Filipino travelers, but with clearer seasonal changes. Summers can get very hot, sticky, and rainy, while autumn turns cool and comfortable. Winter is mild but can still feel chilly in the mornings, and spring brings warm days with mist and light fog. Knowing how the weather shifts through the year helps you plan better, stay comfortable, and enjoy your trip without surprises.

Seasons in Hong Kong

  • Spring (March–May): Expect warm, foggy, and humid conditions with light rain. It's a beautiful time when the city's flora is in full bloom, but visibility can be low.
  • Summer (June–August): This is the hottest and wettest period, with temperatures often climbing above 31°C (88°F). It's also the peak of typhoon season, so heavy rain and thunderstorms are common.
  • Autumn (September–November): September still feels like summer, but by October, the air becomes cooler and drier. Many consider this the best time to visit Hong Kong for its clear skies and pleasant temperatures.
  • Winter (December–February): The city experiences cool, dry weather. Temperatures can drop to around 12°C (54°F), which feels quite chilly, especially with the wind. Snow is virtually unheard of in the city itself.
Seasons in Hong Kong
🎉 Pro Tip: Heading to Hong Kong soon? Take a look at our Hong Kong Weather and Temperature Guide for a simple breakdown of each season, what to expect in May, and useful tips to help you plan your trip and pack the right clothes.

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Hong Kong Weather in September: Hot, Humid, Unpredictable

Hong Kong Weather in September

September in Hong Kong still feels like summer, with hot weather, high humidity, and frequent rain from the tail end of typhoon season. The air can feel as heavy as a warm Manila day, but the lighter crowds make it a good month to visit if you do not mind planning around sudden showers.

Category

Details

Season in September

Late Summer / Early Autumn

Temperature Range

26°C–30°C / 79°F–86°F

Rainfall

High – average 328mm/month, with a risk of typhoons

Humidity

Very High (75-85%)

Daylight Hours

Approximately 12 hours of daylight

Best Things to Do

Explore world-class shopping malls, visit museums, enjoy indoor dining

Festivals & Events

Mid-Autumn Festival (check dates, as it sometimes falls in September)

What to Pack for a trip to Hong Kong in September

What to Pack for a trip to Hong Kong in September

Packing for the Hong Kong temperature in September requires a focus on staying cool, dry, and comfortable.

Clothing Essentials:

  • Lightweight, breathable fabrics: Pack clothes made of cotton or linen, such as t-shirts, shorts, and light trousers, to manage the heat and humidity.
  • Waterproof jacket: A light, foldable rain jacket or poncho is essential for sudden downpours.
  • Comfortable walking shoes: Choose footwear that is comfortable for walking long distances and can handle getting wet. A second pair is a good idea.
  • A light cardigan or shawl: Indoor spaces like shopping malls, restaurants, and the MTR often have powerful air conditioning that can feel very cold.

Weather Gear:

  • Strong, compact umbrella: The wind can be strong during storms, so a sturdy umbrella is a must.
  • Sunscreen SPF 50+: The sun is intense, even on cloudy days.
  • Sunglasses and a hat: Protect yourself from the sun during clear spells.
  • Portable fan: A small, handheld fan can provide welcome relief from the stuffy, humid air.

Travel Accessories:

  • Reusable water bottle: Staying hydrated is crucial in the heat.
  • Daypack: A small backpack is useful for carrying your daily essentials.
  • Power bank: Keep your devices charged while you're out exploring.

Pro Packing Tips:

  • Pack a waterproof bag or cover to protect your phone and camera from the rain.
  • Many hotels provide umbrellas for guest use, so check with your accommodation before you pack one.
  • Prioritise quick-drying clothes, as the high humidity can make it difficult for laundry to dry.
🎉 Pro Tip: Flying to Hong Kong in May? Check out our Baggage Restrictions and Can I Bring Food on a Plane guides for simple rules on what you can pack, how much luggage is allowed, and which snacks you can bring without trouble. These quick tips help keep your trip smooth from the moment you start packing.

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Planning Your September Trip to Hong Kong

Victoria Harbour

September in Hong Kong offers a vibrant city experience but demands preparation for its hot, wet, and unpredictable weather. While many agree the best time to visit Hong Kong for ideal weather is in the cooler, drier months of October and November, a September trip can be just as enjoyable with the right planning.

Must-Know Tips

  • Weather Preparedness: Always check the Hong Kong Observatory website for the latest weather forecasts and typhoon warnings. Plan indoor alternatives like museums or shopping for days with heavy rain.
  • Cultural & Safety Considerations: Take typhoon warnings seriously. If a Typhoon Signal No. 8 or higher is issued, most businesses, public transport, and attractions will close. Stay indoors and follow local advice.
  • Practical Planning Tips: Consider booking flights and accommodation with flexible cancellation policies or purchasing travel insurance that covers weather-related disruptions. The MTR (metro) is the most reliable way to get around, especially during bad weather.

A trip to Hong Kong is always an adventure, and visiting in September is no exception. If you prefer milder conditions, exploring the Best Time to Visit Hong Kong might help you find the perfect season for your travel style. For your September journey, you can find excellent Hong Kong hotel deals and book your flights Manila to Hong Kong in advance.

FAQs: Hong Kong Weather in September

  • Is September still hot in Hong Kong?

    Yes. September is warm and humid, with temperatures often around 28°C to 31°C. It can still feel like summer, especially during the day.
  • Does it rain a lot in September?

    Rain is common. Short but heavy showers and thunderstorms can happen, especially in the first half of the month.
  • Is September typhoon season in Hong Kong?

    Yes. September is part of typhoon season, so it’s good to keep an eye on weather updates and be flexible with your plans.
  • Is September a good time to visit Hong Kong?

    It’s possible, but expect heat, humidity, and some rain. If you don’t mind the weather, you can enjoy fewer crowds and good indoor attractions.
  • Are outdoor activities still okay in September?

    Yes, but plan for the heat. Mornings and evenings are more comfortable. Have indoor backup plans in case of rain.
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Hong Kong Weather in September