Lanzhou is located in central Gansu Province, is the largest on the upper reaches of the Yellow River and a transportation hub. It has four distinct seasons, with dry conditions and little rainfall. Lanzhou offers unique experiences in every season. However, September provides you with an unforgettable ones. As September arrives, the heat in Lanzhou ends, while the winter cold has not yet arrived. Temperatures are moderate, rainfall is scarce, and fruits are ripe, making it the most comfortable month. This guide details in the best time to visit Lanzhou, covering the climate in September, must-see landscapes, and travel advantages, helping you encounter the City on the Yellow River during the golden autumn.
Lanzhou Climate in September
Best Visibility of the Year
In September, the average visibility in Lanzhou reaches 15 to 20 kilometers, the highest of the year. From the summit of White Pagoda Mountain, you can clearly see the Yellow River Iron Bridge, the Lanzhou urban area, and the mountain ranges to the south. In spring, dusty weather reduces visibility to below 5 kilometers. In summer, afternoon humidity rises, causing distant views to appear blurry from water vapor. In winter, despite many sunny days, temperature inversions trap pollutants, resulting in lower visibility than in September. September is the only month suitable for all day long distance viewing.
High UV Intensity
September has long daylight hours in Lanzhou, with an average of 7 to 8 hours of daily sunshine. Although temperatures have dropped, UV intensity remains relatively high, with the UV index reaching 7 to 9 (classified as very high) around midday. Sunscreen, sunglasses, and a wide brimmed hat are essential items in September, just as they are in July and August. Compared to winter, the UV index in December and January is only 2 to 4, requiring much less sun protection. Sun protection cannot be neglected in September.
Low Humidity
The average relative humidity in Lanzhou in September is about 55%, lower than spring’s 65% and summer’s 70%. The low humidity creates a dry and comfortable physical sensation. Sweat dries quickly, and there is no damp, chilly feeling in the mornings and evenings. Low humidity also means water evaporates quickly, requiring increased fluid intake. Compared to southern cities, the dryness of Lanzhou in September is similar to autumn in Beijing and far lower than the humidity in Chengdu, Chongqing, and other cities at the same time of year. For travelers accustomed to dry climates, September feels very comfortable. For those from humid regions, you need to pay attention to hydration and skin moisturizing.
Little Rainfall
Lanzhou receives an average of only 25 millimeters of rain in September, the lowest point of the year. On average, there are only 3 to 4 rainy days throughout the entire month of September, most of which are light showers lasting less than an hour. The ground dries within half an hour after the rain stops. The rate of sunny days reaches 85% in September, meaning that after you arrive in Lanzhou, you will encounter blue skies and white clouds almost every day. Compared to spring, which has 10 to 15 days of dusty weather on average from March to May with low visibility, and summer, which has occasional afternoon thunderstorms in July and August that may limit water activities on the Yellow River, September stands out as the most reliable month for pleasant weather.
Lanzhou in September with Fresh Air
The Best Attractions of Lanzhou in September
White Pagoda Mountain
White Pagoda Mountain is located on the north bank of the Yellow River and offers the best panoramic view of Lanzhou. The white pagoda at the summit was first built in the Yuan Dynasty and is a landmark of Lanzhou. September weather is cool, and the physical exertion of climbing the mountain is far less than in summer. From the summit, you can overlook the Yellow River Iron Bridge and the Lanzhou urban area, with the Yellow River winding below. September’s high visibility makes the distant view particularly excellent. The vegetation in White Pagoda Mountain Park consists mainly of pines and cypresses, which remain green in September, contrasting with the yellow brown waters of the Yellow River.
Yellow River Scenic Line
The Yellow River Scenic Line is Lanzhou’s core riverside landscape belt, stretching about 40 kilometers from Xigu District to Chengquan District. In September, the willow and locust trees along the route remain lush, and temperatures are suitable for walking and cycling. The recommended section is from Zhongshan Bridge to the Yellow River Mother Sculpture, about 3 kilometers. Along the way, you can view the rushing Yellow River, drifting sheepskin rafts, and the waterwheels at the Waterwheel Expo Park. In September, the Yellow River’s water level is moderate and the current is stable, making it the safest season to experience a sheepskin raft ride.
Yellow River Iron Bridge
The Yellow River Iron Bridge was built in 1907 and is the first permanent bridge over the Yellow River, known as the “Number One Bridge under Heaven on the Yellow River.” September temperatures are suitable for walking across the bridge over the Yellow River. Zhongshan Bridge Square at the southern end of the bridge is the best place to watch the Yellow River sunset. In September, sunset occurs around 6:30 to 7:00 pm, when the setting sun dyes the river’s surface and the iron bridge golden. In the evening, temperatures drop to around 15°C, feeling comfortable.
Yellow River Mother Sculpture
The Yellow River Mother Sculpture is located on the south bank of the Yellow River and is one of Lanzhou’s city landmarks. The sculpture consists of a mother and baby, symbolizing the Yellow River nurturing the Chinese nation. September’s cool climate makes the square around the sculpture a popular spot for local residents to relax. Visitors can stop here for photos and experience the local life of Lanzhou.
Gansu Provincial Museum
The Gansu Provincial Museum is the best place to learn about Silk Road history. The museum’s most treasured artifact is the Galloping Horse Treading on a Flying Swallow, excavated from the Leitai Han tomb in Wuwei, which is the prototype for China’s tourism logo. In September, the museum’s indoor temperatures are comfortable, and visitor numbers are lower than in summer, making it suitable for taking half a day for a detailed visit. Permanent exhibitions include the Silk Road Civilization Exhibition, the Gansu Painted Pottery Exhibition, and the Buddhist Art Exhibition. It is recommended that you allow 2 to 3 hours for your visit.
Qingcheng Ancient Town
Qingcheng Ancient Town is located on the north bank of the Yellow River in Yuzhong County and is one of the best preserved ancient towns on the upper Yellow River. The town was first built in the Song Dynasty and prospered due to water transport during the Ming and Qing Dynasties. September temperatures are suitable for strolling along the town’s stone streets. The main attractions within the town include the Town God’s Temple, the Luo Family Compound, and the Qingcheng Academy. September sees fewer visitors than summer, and accommodation prices are lower, making it suitable for travelers who prefer quiet surroundings to arrange a day trip or overnight stay.
The Advantages of Visiting Lanzhou in September
Northwest Hub
Lanzhou is the transportation hub of northwestern China. Many travelers heading to Dunhuang, Zhangye, Jiayuguan, Xining, Lhasa, and other destinations transfer here. By traveling to Lanzhou in September, you can smoothly connect to surrounding provinces after your visit. September is also the best time to visit other destinations within Gansu Province. The Zhangye Danxia and the Dunhuang Mogao Grottoes have moderate climates and fewer visitors than in summer. Connecting Lanzhou with the Hexi Corridor is the classic route for a northwestern trip in September.
Price
July and August are the peak summer tourism season in Lanzhou, with crowded popular attractions and hotel prices along the Yellow River rising 30% to 50% above normal. The National Day holiday in October is another peak period, with Lanzhou as a hub for travelers heading to Dunhuang and Zhangye, causing tight accommodations in the city. September avoids both the summer student crowds and the National Day holiday crowds. Between September 10 and 28, hotel prices in Lanzhou city drop back to normal levels, and waiting times at scenic areas shorten significantly. This period completely overlaps with September’s optimal climate and landscape peak.
Cuisine
September is the season when Lanzhou’s melons and fruits ripen in concentration, a unique advantage not found in other months. Bailan melons and Huanghe honeydews come to market in September, with high sweetness and moisture. The peach orchards of Anning District around Lanzhou see the ripening of Baifeng peaches in September, which are soft, sweet, and juicy. Fresh walnuts also come to market in September, with young walnuts being crisp and sweet. For travelers whose focus is cuisine, September is the best choice.
Temperature
In July and August, Lanzhou temperatures often reach 30 to 35°C, and the air is dry with strong UV radiation. Climbing White Pagoda Mountain requires significantly more physical exertion than in September, and walking along the Yellow River Scenic Line at midday risks sunburn. In December and January, temperatures can drop to minus 10 to 15°C, and the wind on the Yellow River Iron Bridge is biting, greatly reducing outdoor activity time. When traveling to Lanzhou in September, you do not need to worry about extreme temperatures at all. Daytime temperatures around 25°C are suitable for all outdoor activities, and the cool, comfortable evenings around 15°C are pleasant. September is the only month when you can comfortably sit by the Yellow River for an afternoon without feeling too hot or too cold.
Yellow River Mother Sculpture, Landmark of Lanzhou
Tips for Visiting Lanzhou in September
Transportation
Lanzhou Zhongchuan Airport is about 70 kilometers from the city center. The airport bus takes about 1 hour, and the intercity train takes about 40 minutes. In September, flight punctuality rates are high. It is recommended that you choose a morning flight to allow ample time for sightseeing. Within the city, Metro Line 1 and Line 2 cover major attractions and transportation hubs, and subway cars are less crowded in September than in summer. To visit Xinglong Mountain and Qingcheng Ancient Town, you can take a special line bus from the Lanzhou city bus station, with more frequent departures on weekend mornings.
Sun Protection and Hydration
UV intensity remains strong in Lanzhou in September, especially in open areas without cover like the summit of White Pagoda Mountain and the Yellow River Scenic Line. It is recommended that you reapply sunscreen every 2 hours. Lanzhou’s climate is dry, so it is recommended that you drink at least 2 liters of water per day. Carrying a thermos allows you to refill with hot water at restaurants.
Clothing
September in Lanzhou has a significant temperature difference between day and night, with daytime temperatures around 20 to 25°C and nighttime temperatures around 10 to 15°C. It is recommended that you dress in layers, wearing short sleeves or thin long sleeves during the day and adding a light jacket or fleece in the mornings and evenings. Lanzhou’s climate is dry with strong UV radiation, so sunscreen, sunglasses, and a wide brimmed hat are essential. Lip balm and moisturizing lotion can prevent dry skin and cracking. Rainfall is scarce in September, so an umbrella is not essential, but you may carry a folding one just in case.
Best Time to Visit Lanzhou: An Autumn Journey to the Yellow River City
September is the most comfortable month in Lanzhou. Daytime temperatures around 25°C feel excellent. Nighttime temperatures around 15°C are refreshing and pleasant. Throughout the year, September is the most impressive month in Lanzhou, with many sunny days and little dust. During this season, large crowds of tourists have not yet arrived, and the peak National Day tourism season is still to come, so you won’t find endless queues at the major scenic areas. Traveling to Lanzhou in September, the weather is friendly and the scenery is genuine. We hope that in September, in this city where the Yellow River winds through, you will create an unforgettable travel memory.
