Jiuzhaigou Weather and Climate in September

September in Jiuzhaigou marks the beginning of autumn with pleasant, comfortable weather and the first hints of stunning fall foliage. Daytime highs typically range from 20–25°C (68–77°F) in the valley, gradually cooling as the month progresses, while nights become noticeably chilly, often dropping to 8–14°C (46–57°F) or lower at higher elevations. Rainfall averages around 80–120 mm over 8–12 days, mostly as short showers, with conditions becoming drier toward the end of the month.

This is one of the best shoulder seasons for visiting Jiuzhaigou. You’ll enjoy mild temperatures ideal for hiking and photography, fewer crowds than peak summer, improving visibility, and the early transformation of the iconic colorful lakes and forests.

Yongle

33.1400°N, 103.9100°E

Sunrise 14:26

Sunset 03:52

18°C

Broken clouds

Feels Like 17°C

Humidity 49%

Wind 2.6 m/s

Pressure 1007 hPa

Visibility 10 km

Clouds 53%

2026-08-14 18:15 Data by OpenWeatherMap

Jiuzhaigou Season in September Season: Early Autumn

September brings the welcome transition from summer to early autumn in Jiuzhaigou. Days are warm and suitable for full-day exploration, while mornings and evenings feel refreshingly cool due to the high altitude. Precipitation decreases compared to peak summer months, offering more stable conditions for enjoying the UNESCO-listed landscapes.

It is widely regarded as one of the best months to visit Jiuzhaigou — comfortable weather, early autumn colors, and a more relaxed atmosphere before the mid-autumn peak.

Cooling but Comfortable Temperatures

September delivers pleasant early autumn weather to Jiuzhaigou. In the first half of the month, daytime highs often reach 22–26°C (72–79°F) in the valley, with lows around 12–15°C (54–59°F). This makes hiking and sightseeing very enjoyable.

In the second half, temperatures cool gradually. Highs typically hover around 19–23°C (66–73°F), while lows fall to 8–12°C (46–54°F) or lower at higher elevations. The significant day-night temperature difference is typical of the plateau climate, so layering is essential.

Moderate but Decreasing Precipitation

Jiuzhaigou sees moderate rainfall in September, averaging about 80–120 mm across roughly 8–12 days, usually as short afternoon showers. Rain becomes less frequent toward late September.

Cloudy days occur, but clearer skies increase as the month progresses, enhancing the vivid blues and greens of the lakes and waterfalls. Brief rain can add a misty, ethereal beauty to the scenery.

7 Days Chengdu-Jiuzhaigou Tour with Giant Pandas & Mount Emei

Tour Route：Chengdu-Leshan-Emeishan-Chengdu-Jiuzhaigou

Tour Type：City Tours / Hiking Tours

7 Days

6 Places

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Daylight Hours and Sunshine

Daylight remains generous, starting at around 12.5 hours early in the month and shortening to about 11.8 hours by late September. Sunshine hours average 5–7 per day. UV radiation is strong at this altitude, even on cooler days, so protection is important.

Averages for Jiuzhaigou Weather in September

Temperature: 15–18°C / 59–64°F High Temperature: 22–25°C / 72–77°F Low Temperature: 10–14°C / 50–57°F Humidity: ~75% Rainfall: 80–120 mm Rainy Days: 8–12 days

A Recommended Visiting Month

September is highly recommended for visiting Jiuzhaigou. After the summer holiday crowds ease and before the National Day rush, you can explore the colorful ponds, waterfalls, and pristine forests with more space and tranquility. Hotel rates and tour prices are often more favorable.

The mild weather and emerging autumn foliage (with golden and red tones starting to appear) make it perfect for photography and nature lovers.

Recommended Outfits for Visiting Jiuzhaigou in September

Daytime: Light to medium layers — short-sleeve shirts with long-sleeve tops, thin sweaters or fleece, and comfortable hiking trousers. A light windbreaker or softshell jacket is useful.

Evenings & Mornings: Warmer layers are essential — medium jackets, down vests, thermal base layers, gloves, scarves, and warm hats, especially at higher elevations.

Shoes: Sturdy hiking shoes or trail runners with good grip — boardwalks and trails can be slippery when wet.

Others: A compact rain jacket or poncho, high-SPF sunscreen and sunglasses, a reusable water bottle, trekking poles, and a small backpack for carrying layers.

Advice for Your Jiuzhaigou Trip in September

September provides one of the most enjoyable windows to experience Jiuzhaigou’s natural wonders. Hike the scenic trails, visit iconic spots like Five Flower Lake, Norilang Waterfall, and Pearl Shoals, and enjoy the crystal-clear waters reflecting early autumn colors. Lighter crowds allow for a more immersive and peaceful visit.

Tips:

• Layer clothing to handle daily temperature swings and elevation changes.
• Start early to make the most of daylight and avoid any afternoon showers.
• Check real-time weather and visibility reports.
• Book tickets and accommodation in advance, especially for weekends.
• Acclimatize to the altitude and stay hydrated.

Recommended Attractions: Five Flower Lake, Panda Lake, Long Lake, Norilang Waterfall, Pearl Shoals, and the full valley trails.

8 Days Northern Sichuan and Southern Gansu Overland Tour

Tour Route：Chengdu-The City Walls of Songpan Ancient Town in Songpan County, Aba (Ngawa)-Huanglong Scenic and Historic Interest Area-Jiuzhaigou-Langmusi Monastery in Gannan, Gansu-Sangke Grassland in Xiahe, Gannan-Lanzhou

Tour Type：City Tours / Grassland Tours / Hiking Tours

8 Days

6 Places

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September delivers comfortable, scenic weather with the promise of spectacular autumn beauty in Jiuzhaigou. Pack proper layers and rain gear, embrace the highland landscapes, and prepare for one of China’s most breathtaking natural experiences. Safe travels!