Weather in Xi’an for September 2026
In general, the average temperature in Xi’an at the beginning of September is 30.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 26.6 °C by the end of September.
Xi’an in September brings notable rainfall, with an average of 19 rainy days and a total precipitation of 126.1 mm.
Is September a good time to visit Xi’an? check out the best time to travel to Xi’an page.
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Xi’an Weather September
Temperatures trend during September in Xi’an
September weather in Xi’an day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Patchy rain possible | 36° /23° | 0.2 mm | 8 | |
| 2 Sept. | Patchy rain possible | 31° /22° | 1.8 mm | 7 | |
| 3 Sept. |  Partly cloudy | 29° /22° | 0.5 mm | 7 | |
| 4 Sept. |  Moderate or heavy rain shower | 30° /21° | 8.8 mm | 7 | |
| 5 Sept. |  Overcast | 26° /19° | 10.9 mm | 6 | |
| 6 Sept. | Partly cloudy | 32° /19° | 0 mm | 8 | |
| 7 Sept. | Partly cloudy | 32° /19° | 0 mm | 8 | |
| 8 Sept. |  Sunny | 35° /23° | 2.2 mm | 8 | |
| 9 Sept. | Moderate or heavy rain shower | 31° /22° | 6.2 mm | 7 | |
| 10 Sept. | Partly cloudy | 30° /22° | 1.4 mm | 7 | |
| 11 Sept. | Patchy rain possible | 28° /20° | 10.8 mm | 6 | |
| 12 Sept. | Patchy rain possible | 31° /19° | 0.1 mm | 7 | |
| 13 Sept. | Partly cloudy | 31° /20° | 0 mm | 8 | |
| 14 Sept. | Partly cloudy | 34° /22° | 0 mm | 9 | |
| 15 Sept. | Partly cloudy | 34° /22° | 3.3 mm | 8 | |
| 16 Sept. | Partly cloudy | 33° /21° | 3.8 mm | 8 | |
| 17 Sept. | Sunny | 29° /19° | 12.7 mm | 7 | |
| 18 Sept. | Partly cloudy | 27° /18° | 17 mm | 7 | |
| 19 Sept. | Partly cloudy | 28° /18° | 0.2 mm | 7 | |
| 20 Sept. | Moderate rain at times | 24° /18° | 1.2 mm | 5 | |
| 21 Sept. | Partly cloudy | 21° /16° | 7.6 mm | 6 | |
| 22 Sept. | Sunny | 21° /14° | 2.6 mm | 6 | |
| 23 Sept. | Sunny | 24° /15° | 1 mm | 6 | |
| 24 Sept. | Sunny | 28° /15° | 0 mm | 8 | |
| 25 Sept. |  Cloudy | 28° /17° | 0 mm | 7 | |
| 26 Sept. | Overcast | 28° /19° | 0.1 mm | 6 | |
| 27 Sept. | Sunny | 27° /18° | 1.5 mm | 7 | |
| 28 Sept. | Cloudy | 25° /19° | 9.4 mm | 6 | |
| 29 Sept. | Moderate or heavy rain shower | 26° /13° | 17.3 mm | 7 | |
| 30 Sept. | Moderate or heavy rain shower | 24° /14° | 5.2 mm | 6 | |
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Xi’an weather in September vs August vs October
| August | September | October | |
|---|---|---|---|
| Weather | Sunny | Patchy rain possible | Cloudy |
| Temperatures | 35°/24° | 29°/19° | 19°/13° |
| Rainfall | 37 mm | 126 mm | 100 mm |
| Wind | 15.3 km/h | 16.8 km/h | 13 km/h |
| Humidity | 54% | 63% | 65% |
| Rainy days | 11 days | 19 days | 15 days |
| Dry days | 20 days | 11 days | 16 days |
Planning a trip to Xi’an? Discover the best time to visit
Xi’an in September - FAQ
What are the expected maximum and minimum temperatures in Xi’an during September?
How much rainfall should be expected in Xi’an during September?
What are the typical wind conditions in Xi’an during September?
September rainfall patterns in Xi’an
UV exposure in Xi’an during September
What to pack to Xi’an in September?
Warm & sunny · highs around 29 °C, frequent showers
As you prepare for your trip to Xi’an in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Xi’an, during September, is comfortable and enjoyable, regardless of the weather conditions.
🧥 Clothing
👟 Footwear
🎒 Accessories
🧴 Personal Items
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Where is Xi’an?Get accurate weather forecasts for Xi’an, located at latitude 34.258 and longitude 108.929. Stay updated with localized weather information tailored for Xi’an.