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September Weather in Castellar de la Frontera, Spain

Last updated: August 27, 2025

In September, the average temperature in Castellar de la Frontera, Spain is a comfortable 23°C (73°F), with daily variations where it can dip to 16°C (61°F) at the lowest and peak at 32°C (89°F). You can expect about 29 mm (1.1 in) of precipitation over 3 days, complemented by an average humidity of 59%. Prepare for warm and mild conditions!

September Temperature in Castellar de la Frontera

In September in Castellar de la Frontera, the average temperature is 23°C (73°F). Maximums can reach 32°C (89°F) and minimums can drop as low as 16°C (61°F). This makes it an ideal time for travelers seeking pleasant weather and comfortable outdoor activities.

September Weather in Castellar de la Frontera: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Castellar de la Frontera, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castellar de la Frontera, September typically has an average temperature of 23°C (73°F), with highs reaching up to 32°C (89°F) and lows dropping to around 16°C (61°F).
JanFebMarAprMayJunJulAugSepOctNovDec545658606570737573676057
Data source: Temperature data for Castellar de la Frontera 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 Castellar de la Frontera

In Castellar de la Frontera in September, the precipitation amount is 29 mm (1.1 in) over the course of 3 days.

September Precipitation Trends in Castellar de la Frontera

The chart displays monthly precipitation patterns in Castellar de la Frontera, 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 Castellar de la Frontera, September typically receives around 29 mm (1.1 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec7349120812151729499360
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Castellar de la Frontera

In Castellar de la Frontera in September, humidity is 59%. With an average temperature of 23°C (73°F), this humidity feels like a warm embrace, making traveling comfortable yet slightly sticky, perfect for leisurely strolls but best accompanied by plenty of water to stay refreshed.

September Average Humidity in Castellar de la Frontera

This chart illustrates the average monthly humidity levels in Castellar de la Frontera, 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 Castellar de la Frontera is approximately 59%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%71%67%60%59%52%54%52%59%68%77%81%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Castellar de la Frontera

In Castellar de la Frontera 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 Castellar de la Frontera.

Maximum UV Index Levels in Castellar de la Frontera for September

The chart shows the monthly maximum UV Index (UVI) for Castellar de la Frontera 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 Castellar de la Frontera typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101110109743
Data source: Castellar de la Frontera 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 Castellar de la Frontera Compares to Other Months

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

This table compares monthly weather conditions in Castellar de la Frontera, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)73 mm (2.9 inches)79%moderate
February Weather13°C (56°F)49 mm (1.9 inches)71%moderate
March Weather14°C (58°F)120 mm (4.7 inches)67%high
April Weather16°C (60°F)81 mm (3.2 inches)60%very high
May Weather18°C (66°F)21 mm (0.8 inches)59%very high
June Weather21°C (70°F)5 mm (0.2 inches)52%extreme
July Weather23°C (74°F)1 mm (0.0 inches)54%very high
August Weather24°C (76°F)7 mm (0.3 inches)51%very high
September Weather23°C (73°F)29 mm (1.1 inches)59%very high
October Weather19°C (67°F)49 mm (1.9 inches)68%high
November Weather16°C (60°F)93 mm (3.7 inches)77%moderate
December Weather14°C (57°F)60 mm (2.3 inches)81%moderate

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