September Weather in Si'an

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%.

16°C (60°F)

Minimum temperature

25°C (77°F)

Average temperature

34°C (93°F)

Maximum temperature

75%

Humidity

Precipitation and Sunshine hours

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.

120 mm (4.7 inches)

Precipitation

12 rainy days

Rainy days

8 hours 35 minutes

Sunshine hours

48%

Chance of sun

UV Index

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.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  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

Compare Si'an's Climate with Cities Worldwide