Last updated: March 2, 2024
The weather in Yanshan, China, during September is characterized by an average temperature of 21°C (70°F). Highs can soar to 30°C (87°F), while lows may dip to 14°C (58°F). Typically, the humidity level in Yanshan throughout September hovers around 71%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In September, Yanshan averages 223 mm (8.8 inches) of rainfall, typically over the course of 19 rainy days. The month enjoys an average of 12 hours 18 minutes of daylight, with the sun shining for approximately 6 hours 27 minutes each day. Additionally, there is a 39% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In September, the UV Index in Yanshan 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 | 1 | 3 | 6 | 8 | 10 | 10 | 9 | 7 | 4 | 2 | 1 | 0 |
| Exposure | Low | Moderate | High | VeryHigh | High | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 25 min | 30 min | 45 min | ||||||