Hong Kong weather in September

Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average

Hong Kong September weather at a glance

D Challenging 😓

In September, Hong Kong averages 27°C, with typical highs of 29.8°C and lows of 24.7°C. The historical average is 23 wet days and 87% humidity.

Compared with Seoul in September, it is 4.1°C warmer than Seoul, with 10 more wet days.

Hong Kong September temperature & humidity

Average27°CHigh 29.8° / low 24.7°

Humidity87%

Wet days23 days77% of days

Day–night range5.1°

Hong Kong September rain & wet days

Wet days23 daysHistorical monthly average

Share of wet days77%Not a forecast probability

Pack a light rain jacket, waterproof pouch and quick-dry shoes. Keep an indoor stop available between outdoor activities.

What to wear in Hong Kong in September

Choose breathable summer clothes and pack sun protection. Rain is frequent at roughly 23 days in the month; pack a rain jacket and water-resistant shoes. High humidity makes quick-dry clothing and a spare top especially useful.

DaytimeBreathable short sleeves, hat and sunscreen · average high 29.8°C
Morning & eveningLight layer for air-conditioned rooms · average low 24.7°C
FootwearComfortable walking shoes; quick-dry footwear for rainy days.

Useful extras

Breathable T-shirtsHat and sunglassesRain jacketWater-resistant shoesCompact umbrellaSpare quick-dry top

Open the Hong Kong packing checklist →

Packing essentials

Coupang affiliate links · We earn a commission on purchases. Products are sold on the Korean Coupang store.

Travel compression packing pouches
코멧 여행용 압축 파우치 4종 세트 Travel plug adapter
에너자이저 PD 45W 여행용 멀티 어댑터, 화이트 Portable fan
홈플래닛 컴팩트 BLDC 휴대용 선풍기 GXZ-F78 Compact folding umbrella
솔리앤 초경량 UV차단 3단 자동우산 Inflatable travel neck pillow
마이워니 여행용 에어 목베개

Hong Kong September sunrise & sunset times

2026 September · Local time (Asia/Hong_Kong)

Sunrise on the 15th06:10

Sunset on the 15th18:27

Daylight duration12h 17m

Start, middle and end of the month
Date	Sunrise	Sunset	Daylight
2026-09-01	06:06	18:41	12h 35m
2026-09-15	06:10	18:27	12h 17m
2026-09-30	06:14	18:12	11h 58m

For sunset photos, arrive before the listed sunset time. Clouds, mountains and buildings can change when the sun becomes visible or disappears.

Calculated for the city coordinates with daylight saving applied. SunCalc · tz-lookup

Hong Kong travel updates

Watch live CCTV

Hong Kong traffic CCTVHong Kong Transport Department · Updated images

Check the camera timestamp at the source.

Hong Kong travel essentials

Popular MyRealTrip products · city search, sorted by sales · Product names are in Korean.

Affiliate links · We may earn a commission from purchases. Updated 2026-10-18

Explore with Klook

Affiliate widget · We may earn a commission on bookings.

Hong Kong hotel search · Trip.com

Search hotels by destination, dates and number of guests. The Trip.com widget is in Korean.

Affiliate widget · A qualifying booking may earn us a commission. Trip.com may use cookies in this search widget.

Best months to visit Hong Kong

Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.

J F M A M J J A S O N D

ColdHot

September weather by year

September 202426.8°27 wet days, 88% humidity

September 202527.1°19 wet days, 85% humidity

Daily weather in 2025

Daily high and low temperatures; blue labels show precipitation

131°26°

230°26°3.2mm

331°26°

432°26°

532°26°

633°26°

728°24°17mm

827°25°56mm

928°24°19mm

1030°25°5.5mm

1130°25°

1231°26°2.7mm

1330°25°

1431°25°

1531°24°11mm

1630°24°8.5mm

1729°23°9mm

1830°25°7.1mm

1929°25°18mm

2027°24°19mm

2128°24°14mm

2232°24°

2331°26°4.7mm

2426°24°123mm

2528°24°15mm

2631°25°

2731°25°3.6mm

2829°26°3.3mm

2930°26°

3031°24°1.3mm

Frequently asked questions

What is Hong Kong weather like in September?

In September, Hong Kong averages 27°C, with typical highs of 29.8°C and lows of 24.7°C. The historical average is 23 wet days and 87% humidity. Our weather-comfort rating for this month is challenging.

Does it rain a lot in Hong Kong in September?

There are about 23 wet days in September. Pack a rain jacket and water-resistant shoes.

What should I wear in Hong Kong in September?

What are the best months to visit Hong Kong?

Recent weather data rates January, February, March, October among the more comfortable months.

Where can I check Hong Kong weather in September in real time?

Check local webcams for the view right now and a local weather service for today’s forecast. Monthly temperatures here are historical averages.

What time are sunrise and sunset in Hong Kong in September?

On 2026-09-15, calculated sunrise is 06:10 and sunset is 18:27 in local time (Asia/Hong_Kong). Times vary by date and terrain.

Hong Kong weather by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

More Greater China destinations in September

Taipei Kaohsiung Taichung Hualien Macau Shanghai Beijing Qingdao Zhangjiajie Chengdu Xi'an Harbin Guangzhou Sanya Hainan Guilin Ulaanbaatar Osaka Tokyo All destinations →

Open-Meteo (CC BY 4.0) · 2024–2025 historical data, aggregated and rounded by this site. Not a forecast or long-term climate normal. Calculation method and limitations