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September Weather in Ribeira de Pena, Portugal

Last updated: August 27, 2025

In Ribeira de Pena, Portugal, the average temperature in September hovers around 18°C (64°F). During this time, expect minimums to drop to 5°C (41°F) and maximums to reach 31°C (88°F). Be prepared for occasional rain, as 39 mm (1.5 in) of precipitation typically falls over 6 days. With an average humidity of 71%, the air can feel quite muggy, so dress accordingly!

September Temperature in Ribeira de Pena

In September in Ribeira de Pena, the average temperature is 18°C (64°F). Maximums can reach 31°C (88°F), while minimums can dip as low as 5°C (41°F). Be prepared for a range of temperatures if you're planning to travel during this time.

September Weather in Ribeira de Pena: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Ribeira de Pena, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ribeira de Pena, September typically has an average temperature of 18°C (64°F), with highs reaching up to 31°C (88°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec424648525963686864574845
Data source: Temperature data for Ribeira de Pena 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 Ribeira de Pena

In Ribeira de Pena in September, the precipitation amount is 39 mm (1.5 in), occurring over the course of 6 days.

September Precipitation Trends in Ribeira de Pena

The chart displays monthly precipitation patterns in Ribeira de Pena, 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 Ribeira de Pena, September typically receives around 39 mm (1.5 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec801321361206651242039102134178
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ribeira de Pena

In Ribeira de Pena in September, humidity is 71%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making traveling a bit sticky but still pleasant as the warmth envelops you, urging you to explore the vibrant surroundings while staying hydrated.

September Average Humidity in Ribeira de Pena

This chart illustrates the average monthly humidity levels in Ribeira de Pena, 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 Ribeira de Pena 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 Ribeira de Pena

In Ribeira de Pena 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 Ribeira de Pena.

Maximum UV Index Levels in Ribeira de Pena for September

The chart shows the monthly maximum UV Index (UVI) for Ribeira de Pena 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 Ribeira de Pena typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec246910111098642
Data source: Ribeira de Pena 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 Ribeira de Pena Compares to Other Months

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

This table compares monthly weather conditions in Ribeira de Pena, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)80 mm (3.2 inches)87%low
February Weather8°C (46°F)132 mm (5.2 inches)81%moderate
March Weather9°C (48°F)136 mm (5.3 inches)78%high
April Weather11°C (52°F)120 mm (4.7 inches)79%very high
May Weather15°C (59°F)66 mm (2.6 inches)78%very high
June Weather17°C (63°F)51 mm (2.0 inches)71%extreme
July Weather20°C (68°F)24 mm (1.0 inches)63%very high
August Weather20°C (68°F)20 mm (0.8 inches)64%very high
September Weather18°C (64°F)39 mm (1.5 inches)71%very high
October Weather14°C (57°F)102 mm (4.0 inches)79%high
November Weather9°C (48°F)134 mm (5.3 inches)86%moderate
December Weather7°C (45°F)178 mm (7.0 inches)87%low

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