Last updated: March 2, 2024
The weather in Santiago de Compostela, Spain, during September is characterized by an average temperature of 17°C (63°F). Highs can soar to 29°C (84°F), while lows may dip to 9°C (48°F). Typically, the humidity level in Santiago de Compostela throughout September hovers around 79%.
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Average temperature
Maximum temperature
Humidity
In September, Santiago de Compostela averages 55 mm (2.2 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 12 hours 26 minutes of daylight, with the sun shining for approximately 11 hours 17 minutes each day. Additionally, there is a 32% probability of sunny days during this period.
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In September, the UV Index in Santiago de Compostela reaches a maximum of 7, indicating a level of High exposure. The most intense UV radiation typically occurs between 14:00 and 16:00, during which unprotected skin may burn in as little as 25 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 | 2 | 3 | 5 | 6 | 7 | 7 | 6 | 4 | 3 | 1 |
| Exposure | Low | Moderate | High | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 25 min | 30 min | 45 min | ||||||||