Last updated: March 2, 2024
The weather in Si'an, China, during September is characterized by an average temperature of 25°C (77°F). Highs can soar to 34°C (93°F), while lows may dip to 16°C (60°F). Typically, the humidity level in Si'an throughout September hovers around 75%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In September, Si'an averages 120 mm (4.7 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 12 hours 19 minutes of daylight, with the sun shining for approximately 8 hours 35 minutes each day. Additionally, there is a 48% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In September, the UV Index in Si'an reaches a maximum of 10, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 15 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 1 | 3 | 5 | 8 | 9 | 10 | 9 | 7 | 4 | 2 | 1 | 1 | 0 |
| Exposure | Low | Moderate | VeryHigh | High | Moderate | Low | |||||||
| Time to burn | 45 min | 30 min | 15 min | 25 min | 30 min | 45 min | |||||||