September Weather in Castelo de Paiva, Portugal

Last updated: August 27, 2025

In September, the average temperature in Castelo de Paiva, Portugal hovers around 19°C (66°F), with a minimum dipping to 6°C (44°F) and a maximum soaring to 33°C (92°F). Expect 57 mm (2.3 in) of precipitation spread over approximately 7 days, contributing to an average humidity level of 71%. So, be prepared for a mix of weather as you enjoy your time in this vibrant locale!

September Temperature in Castelo de Paiva

In September in Castelo de Paiva, the average temperature is 19°C (66°F). Maximums can reach 33°C (92°F), and minimums can be as low as 6°C (44°F). This variation makes it essential for travelers to pack versatile clothing to comfortably enjoy the diverse weather conditions.

September Weather in Castelo de Paiva: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Castelo de Paiva, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castelo de Paiva, September typically has an average temperature of 19°C (66°F), with highs reaching up to 33°C (92°F) and lows dropping to around 6°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec454951556063686866595148
Data source: Temperature data for Castelo de Paiva 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 Castelo de Paiva

In Castelo de Paiva in September, the precipitation amount is 57 mm (2.3 in) over a span of 7 days.

September Precipitation Trends in Castelo de Paiva

The chart displays monthly precipitation patterns in Castelo de Paiva, 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 Castelo de Paiva, September typically receives around 57 mm (2.3 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec1041651721779671302357127189231
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Castelo de Paiva

In Castelo de Paiva in September humidity is 71%. With an average temperature of 19°C (66°F), this humidity feels like a warm, balmy embrace that enhances the tropical atmosphere, making it a perfect backdrop for leisurely strolls and outdoor adventures, though it may also lead to a slightly sticky feeling as you explore.

September Average Humidity in Castelo de Paiva

This chart illustrates the average monthly humidity levels in Castelo de Paiva, 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 Castelo de Paiva is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%81%78%79%78%71%63%64%71%79%86%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Castelo de Paiva

In Castelo de Paiva 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 Castelo de Paiva.

Maximum UV Index Levels in Castelo de Paiva for September

The chart shows the monthly maximum UV Index (UVI) for Castelo de Paiva 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 Castelo de Paiva typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24689111098642
Data source: Castelo de Paiva 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 Castelo de Paiva Compares to Other Months

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

This table compares monthly weather conditions in Castelo de Paiva, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)104 mm (4.1 inches)87%low
February Weather9°C (49°F)165 mm (6.5 inches)81%moderate
March Weather10°C (51°F)172 mm (6.8 inches)78%high
April Weather13°C (55°F)177 mm (6.9 inches)79%very high
May Weather16°C (61°F)96 mm (3.8 inches)78%very high
June Weather17°C (63°F)71 mm (2.8 inches)71%extreme
July Weather20°C (68°F)30 mm (1.2 inches)63%very high
August Weather20°C (69°F)23 mm (0.9 inches)64%very high
September Weather19°C (66°F)57 mm (2.3 inches)71%very high
October Weather15°C (60°F)127 mm (5.0 inches)79%high
November Weather10°C (51°F)189 mm (7.4 inches)86%moderate
December Weather9°C (48°F)231 mm (9.1 inches)87%low

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