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September Weather in Castro Verde, Portugal

Last updated: August 27, 2025

In Castro Verde, Portugal, the average temperature in September hovers around 23°C (73°F). Expect a minimum of 10°C (50°F) and the possibility of soaring up to 38°C (101°F). With an average humidity level of 71%, the atmosphere can feel quite humid. Also, anticipate a light precipitation of 11 mm (0.4 in) over a span of 1 day, making it a cozy yet occasionally wet time to be there!

September Temperature in Castro Verde

In September in Castro Verde, the average temperature is 23°C (73°F). Maximums can reach 38°C (101°F), while minimums can drop as low as 10°C (50°F). Be prepared for warm days and cooler nights when planning your travels.

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

The chart illustrates September temperature patterns in Castro Verde, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castro Verde, September typically has an average temperature of 23°C (73°F), with highs reaching up to 38°C (101°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec495355596770747673665752
Data source: Temperature data for Castro Verde 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 Verde

In Castro Verde in September, the precipitation amount is 11 mm (0.4 in) over the course of one day.

September Precipitation Trends in Castro Verde

The chart displays monthly precipitation patterns in Castro Verde, 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 Verde, September typically receives around 11 mm (0.4 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec234269562493111384738
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Castro Verde

In Castro Verde in September humidity is 71%. With an average temperature of 23°C (73°F), this humidity feels like a warm, sticky embrace, making outdoor exploration slightly uncomfortable but still manageable if you stay hydrated and plan for breaks in shaded areas.

September Average Humidity in Castro Verde

This chart illustrates the average monthly humidity levels in Castro Verde, 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 Verde is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%74%71%69%69%67%69%68%71%75%78%81%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Castro Verde

In Castro Verde 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 Verde.

Maximum UV Index Levels in Castro Verde for September

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

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

This table compares monthly weather conditions in Castro Verde, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (49°F)23 mm (0.9 inches)80%moderate
February Weather12°C (53°F)42 mm (1.6 inches)73%moderate
March Weather13°C (56°F)69 mm (2.7 inches)71%high
April Weather15°C (59°F)56 mm (2.2 inches)69%very high
May Weather19°C (67°F)24 mm (0.9 inches)69%very high
June Weather21°C (71°F)9 mm (0.4 inches)67%extreme
July Weather24°C (75°F)2 mm (0.1 inches)69%extreme
August Weather25°C (76°F)1 mm (0.0 inches)68%very high
September Weather23°C (73°F)11 mm (0.4 inches)71%very high
October Weather19°C (66°F)38 mm (1.5 inches)75%high
November Weather14°C (57°F)47 mm (1.8 inches)78%moderate
December Weather11°C (53°F)38 mm (1.5 inches)81%moderate

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