Last updated: March 2, 2024
The weather in Ostuncalco, Guatemala, during September is characterized by an average temperature of 18°C (65°F). Highs can soar to 24°C (76°F), while lows may dip to 14°C (57°F). Typically, the humidity level in Ostuncalco throughout September hovers around 82%.
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Average temperature
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Humidity
In September, Ostuncalco averages 457 mm (18.0 inches) of rainfall, typically over the course of 30 rainy days. The month enjoys an average of 12 hours 11 minutes of daylight, with the sun shining for approximately 9 hours 24 minutes each day. Additionally, there is a 14% probability of sunny days during this period.
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In September, the UV Index in Ostuncalco reaches a maximum of 14, 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 | 14 | 13 | 10 | 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 | ||||