Last updated: March 2, 2024
The weather in Andorra la Vella, Andorra, during September is characterized by an average temperature of 11°C (52°F). Highs can soar to 21°C (71°F), while lows may dip to 0°C (33°F). Typically, the humidity level in Andorra la Vella throughout September hovers around 73%.
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Humidity
In September, Andorra la Vella averages 70 mm (2.8 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 12 hours 26 minutes of daylight, with the sun shining for approximately 11 hours 25 minutes each day. Additionally, there is a 21% probability of sunny days during this period.
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In September, the UV Index in Andorra la Vella reaches a maximum of 8, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 15 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 | 1 | 3 | 5 | 6 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |
| Exposure | Low | Moderate | High | VeryHigh | High | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 25 min | 30 min | 45 min | ||||||