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September Weather in Castro del Rio, Spain

Last updated: August 27, 2025

The average temperature in Castro del Rio, Spain during September is a warm 25°C (77°F). Temperatures can vary, with a minimum of 12°C (53°F) and a maximum soaring to 38°C (101°F). Expect about 28 mm (1.1 in) of precipitation spread over 4 days, along with an average humidity of 61%.

September Temperature in Castro del Rio

In September in Castro del Rio, the average temperature is 25°C (77°F). Maximums can reach 38°C (101°F), and minimums can be as low as 12°C (53°F). This makes it a great time to explore outdoor activities while being prepared for both warm days and cooler evenings.

September Weather in Castro del Rio: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Castro del Rio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castro del Rio, September typically has an average temperature of 25°C (77°F), with highs reaching up to 38°C (101°F) and lows dropping to around 12°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec475356617077838476675551
Data source: Temperature data for Castro del Rio 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 Castro del Rio

In Castro del Rio in September, the precipitation amount is 28 mm (1.1 in) over the course of 4 days.

September Precipitation Trends in Castro del Rio

The chart displays monthly precipitation patterns in Castro del Rio, 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 Castro del Rio, September typically receives around 28 mm (1.1 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec3934816118711428446750
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Castro del Rio

In Castro del Rio in September humidity is 61%. With an average temperature of 25°C (77°F), this humidity feels like a warm embrace that can quickly lead to feelings of stickiness, making traveling a bit more tiring as you adapt to the climate while exploring.

September Average Humidity in Castro del Rio

This chart illustrates the average monthly humidity levels in Castro del Rio, 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 Castro del Rio is approximately 61%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%71%66%58%55%50%55%54%61%70%76%79%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Castro del Rio

In Castro del Rio in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Castro del Rio.

Maximum UV Index Levels in Castro del Rio for September

The chart shows the monthly maximum UV Index (UVI) for Castro del Rio 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 Castro del Rio typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109743
Data source: Castro del Rio 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 Castro del Rio Compares to Other Months

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

This table compares monthly weather conditions in Castro del Rio, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)39 mm (1.5 inches)76%moderate
February Weather11°C (53°F)34 mm (1.3 inches)71%moderate
March Weather13°C (56°F)81 mm (3.2 inches)66%high
April Weather16°C (61°F)60 mm (2.4 inches)58%very high
May Weather21°C (70°F)18 mm (0.7 inches)55%very high
June Weather25°C (77°F)7 mm (0.3 inches)50%extreme
July Weather28°C (83°F)1 mm (0.1 inches)55%extreme
August Weather29°C (84°F)14 mm (0.5 inches)54%very high
September Weather25°C (77°F)28 mm (1.1 inches)61%very high
October Weather19°C (67°F)44 mm (1.7 inches)70%high
November Weather13°C (56°F)67 mm (2.7 inches)76%moderate
December Weather10°C (51°F)50 mm (2.0 inches)79%moderate

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