Last updated: March 2, 2024
The weather in Viterbo, Colombia, during September is characterized by an average temperature of 19°C (66°F). Highs can soar to 26°C (79°F), while lows may dip to 13°C (56°F). Typically, the humidity level in Viterbo throughout September hovers around 80%.
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Average temperature
Maximum temperature
Humidity
In September, Viterbo averages 1726 mm (67.9 inches) of rainfall, typically over the course of 30 rainy days. The month enjoys an average of 12 hours 7 minutes of daylight, with the sun shining for approximately 9 hours 0 minutes each day. Additionally, there is a 5% probability of sunny days during this period.
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Rainy days
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Chance of sun
In September, the UV Index in Viterbo 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 | 9 | 6 | 3 | 1 | 0 | 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 | ||||