Last updated: March 2, 2024
The weather in Santa Catalina de Siena, Mexico, during September is characterized by an average temperature of 19°C (66°F). Highs can soar to 27°C (82°F), while lows may dip to 11°C (52°F). Typically, the humidity level in Santa Catalina de Siena throughout September hovers around 82%.
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Average temperature
Maximum temperature
Humidity
In September, Santa Catalina de Siena averages 189 mm (7.4 inches) of rainfall, typically over the course of 20 rainy days. The month enjoys an average of 12 hours 15 minutes of daylight, with the sun shining for approximately 9 hours 24 minutes each day. Additionally, there is a 37% probability of sunny days during this period.
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In September, the UV Index in Santa Catalina de Siena reaches a maximum of 13, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 10 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 | 0 | 1 | 1 | 4 | 7 | 10 | 13 | 13 | 12 | 9 | 6 | 3 | 1 |
| Exposure | Low | Moderate | High | VeryHigh | Extreme | VeryHigh | High | Moderate | Low | ||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 10 min | 15 min | 25 min | 30 min | 45 min | ||||