Last updated: August 27, 2025
In September, the average temperature in Castrillo de la Valduerna, Spain hovers around 16°C (61°F). You can expect a minimum of 4°C (39°F) and a maximum of 31°C (88°F). During this time, precipitation amounts to 53 mm (2.1 in) over about 7 days, while the average humidity sits at a comfortable 77%.
In September in Castrillo de la Valduerna, the average temperature is 16°C (61°F). The maximum can reach 31°C (88°F) and the minimum can be as low as 4°C (39°F). This variation in temperature makes it ideal for travelers to pack layers for both warm and cooler days.
In Castrillo de la Valduerna in September, the total precipitation amount is 53 mm (2.1 in) spread over a period of 7 days.
In Castrillo de la Valduerna in September humidity is 77%. With an average temperature of 16°C (61°F), this humidity feels like a slight heaviness in the air, making every step feel a touch more effortful while traveling. The dampness clings to your skin, adding a layer of discomfort, yet the mild temperature invites you to explore the surroundings, blending the challenge of the humidity with an opportunity for a refreshing adventure.
In Castrillo de la Valduerna in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Castrillo de la Valduerna.
UV Risk Categories
Weather in Castrillo de la Valduerna varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Castrillo de la Valduerna, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (39°F) | 32 mm (1.3 inches) | 87% | low |
| February Weather | 6°C (42°F) | 67 mm (2.6 inches) | 85% | moderate |
| March Weather | 7°C (44°F) | 67 mm (2.6 inches) | 83% | high |
| April Weather | 9°C (49°F) | 90 mm (3.6 inches) | 83% | very high |
| May Weather | 14°C (57°F) | 67 mm (2.6 inches) | 84% | very high |
| June Weather | 17°C (62°F) | 80 mm (3.2 inches) | 84% | extreme |
| July Weather | 20°C (68°F) | 31 mm (1.2 inches) | 86% | very high |
| August Weather | 20°C (68°F) | 28 mm (1.1 inches) | 78% | very high |
| September Weather | 16°C (61°F) | 53 mm (2.1 inches) | 77% | very high |
| October Weather | 12°C (54°F) | 59 mm (2.3 inches) | 82% | high |
| November Weather | 7°C (44°F) | 71 mm (2.8 inches) | 86% | moderate |
| December Weather | 5°C (41°F) | 84 mm (3.3 inches) | 87% | low |