Weather in Xi’an for September 2025
Until now, September 2025 in Xi’an is cooler than usual, with temperatures averaging 24.6 °C, this is -4.4 °C below the typical seasonal average.
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 27.1 °C by the end of September.
Xi’an experiences moderate rainfall in September, with an average of 6 rainy days and a total precipitation of 67.5 mm.
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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 | 27° /13° | 34.6 mm | 6 | |
| 30 Sept. | Patchy rain possible | 27° /17° | 0.2 mm | 1.6 | |
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Xi’an weather in September vs August vs October
| August | September | October | |
|---|---|---|---|
| Weather | Sunny | Partly cloudy | Sunny |
| Temperatures | 35°/24° | 33°/21° | 22°/13° |
| Rainfall | 48 mm | 68 mm | 32 mm |
| Wind | 14.3 km/h | 21.1 km/h | 14 km/h |
| Humidity | 53% | 51% | 51% |
| Rainy days | 9 days | 6 days | 6 days |
| Dry days | 22 days | 24 days | 25 days |
Planning a trip to Xi’an? Discover the best time to visit
Xi’an in September - FAQ
What to pack to Xi’an in September?
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
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Sandals/Flip-flops: Comfortable for warm climates
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
September rainfall patterns in Xi’an
UV exposure in Xi’an during September
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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.