Xi’an Weather in September: Temperature, Clothing Guide & Travel Tips

Written by Clementine | Updated December 27,2025

September is the best time to visit the ancient capital of Xi ‘an. As autumn approaches, the temperature steadily drops, the weather becomes pleasant, though the climate is till humid. The autumn foliage in September makes many of the city’s landmarks especially beautiful.

Before your trip to Xi’an, it is advised you check the forecast for Xian weather in November. Understand its climate and temperature, so that you can dress properly and comfortably. Based in Xi’an, China Xian Tour specialists show you the real Xian with both classic site visits, hidden gem discovery and local life experience. Xian Tours with us with us is second to none.

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• Xi’an Weather & Temperature in September
• Averages of Xian Weather & Climate in September
• Xian Weather in September in History
• What to Wear in Xi’an in September
• What to Do and See in Xi’an in September
• Tips for Traveling Xi’an in September
• FAQs about Traveling to Xi’an in September
• Plan Your Xi’an Tour with China Xian Tour

Xi’an Weather & Temperature in September

On the basis of the Chinese traditional 24 solar terms, the White Dew is the third solar term in autumn, which usually falls on September 7 or 8. This solar phrase indicates that summer is gradually drawing to an end and that cool weather is on the horizon. The fourth solar term of autumn, the Autumnal Equinox, usually falls on September 22 or 23, meaning that autumn is already halfway through.

Accordingly, Xi’an’s autumn starts in September when the weather becomes cool and breezy. Xi’an temperature in September will drop slightly, fluctuating between 13 °C (33.8 °F) and 26 °C (78.8 °F). It’s one of the wettest months of the year, having the average humidity of 76%. The refreshing climate undoubtedly makes September one of the best months to travel to Xi’an. The Chinese Mid-Autumn Festival usually falls in September when you have a chance to appreciate the full moon and eat moon cakes.

Averages of Xian Weather & Climate in September

Xian Weather in September in History

The highest temperature in Xi ‘an in September is 39℃ (in 2002), and the lowest temperature in Xi ‘an in September is 5℃ (in 1952).

What to Wear in Xi’an in September

In Xian, the weather in early September and late September is somewhat different. The early September is still hot at daytime, but the temperature difference starts to increase. You can explore Xian during the day with just dresses, shorts and t-shirts. But long sleeves and jackets are recommended to pack to prevent cold in the early mornings and evenings.

When in late September, the autumn comes gradually. The temperature drops significantly and the rainy days becomes more. It will be a little cold. So autumn clothing is required. Long-sleeved shirts and windbreaker jacket are recommended.

September is still in the rainy season period in Xi’an, so some rain gear and rain shoes are necessary.

What to Do and See in Xi’an in September

Recommendation Rate: ★★★★★

September is the peak of tourism to Xi’an thanks to the pleasant climate.

Lintong Pomegranate Festival 

Take part in the Lintong Pomegranate Festival. It’s commonly held in mid September every year in the same area as the Terracotta Army Museum for a week. During the festival, you can taste the pomegranates by picking it yourself after visiting the Terracotta Warriors. The festive atmosphere will become stronger with local performances and market stalls take part in celebration.

Cycling on Xi’an City Wall

Cycle on Xi’an City Wall, China’s largest and best preserved ancient city wall. Catch a bird’s-eye view of local ancient architectural complex, and enjoy the different scenery of the outer city and the inner city while riding a bicycle or taking a walk on the city wall. With September’s mild winds brush against your face and hair, you’ll attain a cycling experience that’s more comfortable than ever.

Visiting the Big Wild Goose Pagoda

The Big Wild Goose Pagoda is one of the four famous Buddhist pagodas in China. You may take in the serene Buddhist ambiance and the ancient Silk Road culture here in September. When evening comes, there will be fountain show held at the North Square. And this has long been a favorite activity among both locals and travelers.

Exploring the Banpo Site Museum

Banpo Site is the first museum of prehistoric ruins in China, and is one of the “50 places worth visiting for foreigners in China”. The Banpo site  provides insight into the social organization, production and life, economic form, marriage status, customs, culture and art of a typical matriarchal settlement of Yangshao culture in the Neolithic Age about 6000 years ago. The museum is rather compact so it won’t take you too much time to have a full exploration. One to two hours is normally enough.

Hiking Mt. Huashan

Plan a day tour to Huashan Mountain from Xian. Famous for nearly vertical steps and narrow paths, Mt. Huashan offers you an opportunity to realize your adventure dream by conquering some of the toughest trails including Plank Walk and Hawk’s Turn. September with its typically gentle and cool weather has the power to make the make your hiking experience safer and more enjoyable than you may have imagined.

Tips for Traveling Xi’an in September

• Carry some energy-boosting snacks when climbing mountains, such as chocolate and dried beef.
• If visiting popular attractions (especially Terracotta Army), you are advised to arrive as early as possible to avoid long queues.

FAQs about Traveling to Xi’an in September

Is September a rainy month in Xi’an?

Yes. It would rain rather frequently in September. However, you don’t need to worry too much about it as most rain would come in short bursts, which is unlikely to ruin your travel plans. But still, umbrella or other rain gears are essential.

Are temperatures very different between day and night?

Yes. There could be a 10–12°C (about 18–22°F) temperature gap between Xi’an’s day and night. While afternoons are mostly warm and comfortable, you’ll counter with colder air in mornings and nights.

How does the tourist season in September affect travel costs, such as flights and hotels?

Even though the summer vacation will end on the very first day of September, it’s still a peak month for domestic tourism. As a result, flights and hotel prices will still stay higher than that in off-season months. Besides, also be prepared for larger crowds in popular attractions. So that it is highly recommended to book tickets and accommodation in advance.

Plan Your Xi’an Tour with China Xian Tour

√Recommended Xian Tours in September:

• 1 Day Terracotta Warriors and Big Wild Goose Pagoda Group Tour
• 3 Days Xian City Tour with Mt.Huashan
• Best Xian Day Tour
• Huashan Exploration Day Tour by High-speed Train