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September Weather in Castrillo de Duero, Spain

Last updated: August 27, 2025

In September, the average temperature in Castrillo de Duero, Spain is a pleasant 19°C (66°F), with temperatures ranging from a cool 4°C (39°F) to a warm 34°C (93°F). You can expect about 19 mm (0.8 in) of precipitation spread over 4 days, contributing to an average humidity level of 65%.

September Temperature in Castrillo de Duero

In September in Castrillo de Duero, the average temperature is 19°C (66°F), with maximums reaching 34°C (93°F) and minimums dropping as low as 4°C (39°F). It's a wonderful time for travelers to experience comfortable weather while enjoying outdoor activities.

September Weather in Castrillo de Duero: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Castrillo de Duero, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castrillo de Duero, September typically has an average temperature of 19°C (66°F), with highs reaching up to 34°C (93°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec384447526068747366564642
Data source: Temperature data for Castrillo de Duero generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Castrillo de Duero

In Castrillo de Duero in September, the precipitation amount is 19 mm (0.8 in) over a span of 4 days.

September Precipitation Trends in Castrillo de Duero

The chart displays monthly precipitation patterns in Castrillo de Duero, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Castrillo de Duero, September typically receives around 19 mm (0.8 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec434654694841171119446762
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Castrillo de Duero

In Castrillo de Duero in September humidity is 65%. With an average temperature of 19°C (66°F), this humidity feels like a warm embrace, making outdoor activities refreshing but slightly sticky, so it's advisable to stay hydrated and take breaks in shaded areas while exploring.

September Average Humidity in Castrillo de Duero

This chart illustrates the average monthly humidity levels in Castrillo de Duero, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Castrillo de Duero is approximately 65%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%86%79%74%71%63%59%58%66%77%87%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Castrillo de Duero

In Castrillo de Duero 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 Duero.

Maximum UV Index Levels in Castrillo de Duero for September

The chart shows the monthly maximum UV Index (UVI) for Castrillo de Duero in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Castrillo de Duero typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3478101111108642
Data source: Castrillo de Duero September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Castrillo de Duero Compares to Other Months

Weather in Castrillo de Duero varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Castrillo de Duero, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Castrillo de Duero, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)43 mm (1.7 inches)90%moderate
February Weather6°C (44°F)46 mm (1.8 inches)86%moderate
March Weather8°C (47°F)54 mm (2.1 inches)79%high
April Weather11°C (52°F)69 mm (2.7 inches)74%very high
May Weather16°C (60°F)48 mm (1.9 inches)71%very high
June Weather20°C (68°F)41 mm (1.6 inches)63%extreme
July Weather23°C (74°F)17 mm (0.7 inches)59%extreme
August Weather23°C (74°F)11 mm (0.4 inches)58%very high
September Weather19°C (66°F)19 mm (0.8 inches)65%very high
October Weather14°C (57°F)44 mm (1.7 inches)77%high
November Weather8°C (46°F)67 mm (2.7 inches)87%moderate
December Weather6°C (42°F)62 mm (2.4 inches)90%low

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