Last updated: March 2, 2024
The weather in San Bartolome Milpas Altas, Guatemala, during September is characterized by an average temperature of 20°C (68°F). Highs can soar to 27°C (82°F), while lows may dip to 14°C (58°F). Typically, the humidity level in San Bartolome Milpas Altas throughout September hovers around 82%.
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In September, San Bartolome Milpas Altas averages 293 mm (11.6 inches) of rainfall, typically over the course of 27 rainy days. The month enjoys an average of 12 hours 10 minutes of daylight, with the sun shining for approximately 9 hours 31 minutes each day. Additionally, there is a 17% probability of sunny days during this period.
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In September, the UV Index in San Bartolome Milpas Altas reaches a maximum of 13, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, 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 | 1 | 3 | 7 | 10 | 13 | 13 | 12 | 9 | 6 | 3 | 1 | 1 | 0 |
| 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 | ||||