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September Weather in Favaios, Portugal

Last updated: August 27, 2025

In September, the average temperature in Favaios, Portugal is a comfortable 19°C (66°F). The weather can fluctuate, with minimums dipping to 6°C (43°F) and maximums rising to 33°C (91°F). Expect about 33 mm (1.3 in) of precipitation spread over 4 days, accompanied by an average humidity of 71%, ensuring a pleasant and refreshing atmosphere.

September Temperature in Favaios

In September in Favaios, the average temperature is 19°C (66°F), with maximums reaching up to 33°C (91°F) and minimums dipping as low as 6°C (43°F). This mild climate makes Favaios an ideal destination for travelers seeking enjoyable weather and a range of outdoor activities.

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

The chart illustrates September temperature patterns in Favaios, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Favaios, September typically has an average temperature of 19°C (66°F), with highs reaching up to 33°C (91°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec424749546165707065584946
Data source: Temperature data for Favaios 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 Favaios

In Favaios in September, the precipitation amount is 33 mm (1.3 in) over a span of 4 days.

September Precipitation Trends in Favaios

The chart displays monthly precipitation patterns in Favaios, 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 Favaios, September typically receives around 33 mm (1.3 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec4080868839371713336481102
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Favaios

In Favaios 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 Favaios

This chart illustrates the average monthly humidity levels in Favaios, 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 Favaios 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 Favaios

In Favaios 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 Favaios.

Maximum UV Index Levels in Favaios for September

The chart shows the monthly maximum UV Index (UVI) for Favaios 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 Favaios typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346910111098642
Data source: Favaios 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 Favaios Compares to Other Months

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

This table compares monthly weather conditions in Favaios, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)40 mm (1.6 inches)87%moderate
February Weather8°C (47°F)80 mm (3.1 inches)81%moderate
March Weather10°C (50°F)86 mm (3.4 inches)78%high
April Weather12°C (54°F)88 mm (3.5 inches)79%very high
May Weather16°C (61°F)39 mm (1.5 inches)78%very high
June Weather18°C (65°F)37 mm (1.5 inches)71%extreme
July Weather21°C (71°F)17 mm (0.7 inches)63%very high
August Weather21°C (70°F)13 mm (0.5 inches)64%very high
September Weather19°C (66°F)33 mm (1.3 inches)71%very high
October Weather15°C (59°F)64 mm (2.5 inches)79%high
November Weather9°C (49°F)81 mm (3.2 inches)86%moderate
December Weather8°C (46°F)102 mm (4.0 inches)87%low

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