Last updated: March 2, 2024
The weather in San Matias Petacaltepec, Mexico, during September is characterized by an average temperature of 21°C (70°F). Highs can soar to 28°C (83°F), while lows may dip to 15°C (60°F). Typically, the humidity level in San Matias Petacaltepec throughout September hovers around 84%.
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In September, San Matias Petacaltepec averages 391 mm (15.4 inches) of rainfall, typically over the course of 25 rainy days. The month enjoys an average of 12 hours 11 minutes of daylight, with the sun shining for approximately 9 hours 27 minutes each day. Additionally, there is a 12% probability of sunny days during this period.
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In September, the UV Index in San Matias Petacaltepec reaches a maximum of 14, 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 | 2 | 5 | 9 | 12 | 14 | 14 | 11 | 7 | 4 | 2 | 1 |
| Exposure | Low | Moderate | VeryHigh | Extreme | High | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 15 min | 10 min | 25 min | 30 min | 45 min | ||||||