Last updated: March 2, 2024
The weather in San Rafael Petzal, Guatemala, during September is characterized by an average temperature of 18°C (64°F). Highs can soar to 26°C (79°F), while lows may dip to 11°C (53°F). Typically, the humidity level in San Rafael Petzal throughout September hovers around 82%.
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Average temperature
Maximum temperature
Humidity
In September, San Rafael Petzal averages 308 mm (12.1 inches) of rainfall, typically over the course of 27 rainy days. The month enjoys an average of 12 hours 11 minutes of daylight, with the sun shining for approximately 9 hours 49 minutes each day. Additionally, there is a 17% probability of sunny days during this period.
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Chance of sun
In September, the UV Index in San Rafael Petzal reaches a maximum of 15, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, 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 | 15 | 13 | 10 | 7 | 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 | ||||