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September Weather in Castelseras, Spain

Last updated: August 27, 2025

In September, the average temperature in Castelseras, Spain hovers around 21°C (70°F), with the mercury dipping as low as 7°C (45°F) and soaring up to 35°C (95°F). Expect approximately 30 mm (1.2 in) of precipitation over about 5 days, and enjoy a comfortable average humidity level of 64%.

September Temperature in Castelseras

In September in Castelseras, the average temperature is 21°C (70°F), with maximums reaching 35°C (95°F) and minimums dropping as low as 7°C (45°F). This diverse temperature range makes it important for travelers to pack accordingly to enjoy their stay comfortably.

September Weather in Castelseras: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Castelseras, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castelseras, September typically has an average temperature of 21°C (70°F), with highs reaching up to 35°C (95°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec444952566573797870615147
Data source: Temperature data for Castelseras 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 Castelseras

In Castelseras in September, the precipitation amount is 30 mm (1.2 in) over the course of 5 days.

September Precipitation Trends in Castelseras

The chart displays monthly precipitation patterns in Castelseras, 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 Castelseras, September typically receives around 30 mm (1.2 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec481729774341192030385729
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Castelseras

In Castelseras in September humidity is 64%. With an average temperature of 21°C (70°F), this humidity feels like a warm embrace, making it comfortable for traveling during the day, albeit slightly sticky in the afternoons.

September Average Humidity in Castelseras

This chart illustrates the average monthly humidity levels in Castelseras, 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 Castelseras is approximately 64%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%80%73%69%64%59%58%58%64%76%82%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Castelseras

In Castelseras 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 Castelseras.

Maximum UV Index Levels in Castelseras for September

The chart shows the monthly maximum UV Index (UVI) for Castelseras 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 Castelseras typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689111198642
Data source: Castelseras 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 Castelseras Compares to Other Months

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

This table compares monthly weather conditions in Castelseras, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (44°F)48 mm (1.9 inches)85%moderate
February Weather10°C (50°F)17 mm (0.7 inches)80%moderate
March Weather11°C (53°F)29 mm (1.1 inches)73%high
April Weather13°C (56°F)77 mm (3.0 inches)69%very high
May Weather18°C (65°F)43 mm (1.7 inches)64%very high
June Weather23°C (73°F)41 mm (1.6 inches)59%extreme
July Weather26°C (79°F)19 mm (0.8 inches)58%extreme
August Weather26°C (79°F)20 mm (0.8 inches)58%very high
September Weather21°C (70°F)30 mm (1.2 inches)64%very high
October Weather16°C (62°F)38 mm (1.5 inches)76%high
November Weather11°C (51°F)57 mm (2.2 inches)82%moderate
December Weather8°C (48°F)29 mm (1.1 inches)84%low

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