Guangzhou Weather and Climate in September

September in Guangzhou is the transition from hot, humid summer to early autumn. Daytime highs typically range from 28–32°C (82–90°F) in the early part of the month, gradually cooling to 27–30°C (81–86°F) by late September. Nights remain warm, often dropping to 23–26°C (73–79°F). Rainfall is still noticeable but begins to decline, averaging around 150–200 mm over 10–15 days, mostly as short heavy showers or thunderstorms. Typhoon risk remains but decreases as the month progresses.

This is a good shoulder season for visiting Guangzhou. Temperatures are slightly more comfortable than midsummer, humidity starts to ease a little, and crowds thin out after the peak summer period, offering better value on hotels and a more relaxed sightseeing experience.

Guangzhou

23.1300°N, 113.2600°E

Sunrise 14:02

Sunset 03:00

26°C

Light rain

Feels Like 26°C

Humidity 73%

Wind 2 m/s

Pressure 1000 hPa

Visibility 8.6 km

Clouds 100%

2026-08-14 14:58 Data by OpenWeatherMap

Guangzhou Season in September: Early Autumn

September marks the gradual end of Guangzhou’s long, hot summer. Days remain warm and suitable for outdoor activities, while evenings feel marginally cooler. Precipitation is lower than in July and August, though occasional heavy showers are still common.

It is widely regarded as a favorable month to visit Guangzhou — more bearable heat, improving conditions, and a lively yet less crowded atmosphere.

Cooling but Still Warm Temperatures

September delivers easing summer heat to Guangzhou. In the first half of the month, daytime highs often reach 30–32°C (86–90°F) on sunny days, with lows around 25–26°C (77–79°F). It can still feel quite warm and humid during the middle of the day.

In the second half, temperatures cool slightly. Highs typically hover around 27–30°C (81–86°F), while lows fall to 23–25°C (73–77°F). The day-night difference becomes a bit more noticeable, making evenings more pleasant for outdoor dining or riverside strolls.

6 Days Guangdong Tour to Guangzhou, Foshan, Kaiping Diaolou & Shenzhen

Tour Route：Guangzhou-Foshan-Kaiping-Shenzhen

Tour Type：City Tours / Classic China Tours

6 Days

6 Places

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Moderate to High Precipitation and Possible Typhoons

Guangzhou receives considerable rainfall in September, averaging about 150–200 mm across roughly 10–15 days. Showers are often short but intense, sometimes accompanied by thunderstorms. The risk of typhoons or tropical storms decreases compared to August but still exists, particularly early in the month.

Cloudy and partly sunny days are common, with clearer skies becoming more frequent toward late September.

Daylight Hours and Sunshine

Daylight remains long, starting at around 12.5 hours early in the month and shortening to about 11.9 hours by late September. Sunshine hours average 5–7 per day. The UV index stays high, so sun protection is essential.

Averages for Guangzhou Weather in September

Temperature: 26–27°C / 79–81°F High Temperature: 30°C / 86°F Low Temperature: 24°C / 75°F Humidity: ~74–78% Rainfall: 150–200 mm Rainy Days: 10–15 days

A Recommended Visiting Month

September is a recommended time for visiting Guangzhou as the extreme summer heat begins to moderate. Crowds ease after the peak holiday season, allowing you to enjoy Canton Tower, Shamian Island, Chen Clan Ancestral Hall, and Pearl River cruises more comfortably. Hotel rates are often better than in July and August.

The warm weather and occasional autumn touches in parks make it suitable for most travelers who can handle subtropical conditions.

Recommended Outfits for Visiting Guangzhou in September

Daytime: Light, breathable clothing such as short-sleeve shirts, polo shirts, shorts, light trousers, or dresses. Choose moisture-wicking fabrics due to high humidity.

Evenings: Bring a thin long-sleeve shirt, light sweater, or jacket for air-conditioned malls, restaurants, or cooler evenings.

Shoes: Comfortable walking shoes or sneakers — you’ll do plenty of walking in markets, islands, and attractions.

Others: A compact umbrella or light rain shell for sudden showers, high-SPF sunscreen and sunglasses, a reusable water bottle, and mosquito repellent for greener areas.

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Tour Route：Hong Kong-Guangzhou-Macau

Tour Type：City Tours

6 Days

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Advice for Your Guangzhou Trip in September

September offers a more comfortable window to experience Guangzhou’s vibrant culture, food, and attractions. Explore historic sites, take a Pearl River night cruise, enjoy world-class Cantonese dim sum, or visit nearby areas like Foshan or Kaiping Watchtowers.

Tips:

• Dress lightly and use layers to handle strong air conditioning indoors versus outdoor humidity.
• Carry an umbrella or rain jacket as showers can appear suddenly.
• Stay hydrated and take breaks during the warmest parts of the day.
• Try seasonal fresh seafood and local fruits.

Recommended Attractions: Canton Tower, Shamian Island, Chen Clan Ancestral Hall, Beijing Road Ancient Pedestrian Street, Guangzhou Chimelong Safari Park, and Pearl River Night Cruise.

September delivers warm, gradually easing weather and a lively atmosphere in Guangzhou. Pack light, breathable clothes and rain gear, embrace the southern energy, and prepare for a flavorful and enjoyable trip. Safe travels!