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September Weather in Valpacos, Portugal

Last updated: August 27, 2025

In Valpacos, Portugal, the average temperature in September hovers around 19°C (67°F), making it a pleasant time to visit. Expect minimums of 6°C (42°F) and highs reaching up to 34°C (93°F). While you're enjoying the weather, be prepared for some light rain, with an average precipitation of 28 mm (1.1 in) spread over 4 days. With an average humidity of 63%, the air will feel comfortably moderate.

September Temperature in Valpacos

In September in Valpacos, the average temperature is 19°C (67°F). Maximums can reach 34°C (93°F), while minimums can drop as low as 6°C (42°F). Pack accordingly to enjoy a comfortable trip, as temperatures can vary significantly throughout the day.

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

The chart illustrates September temperature patterns in Valpacos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Valpacos, September typically has an average temperature of 19°C (67°F), with highs reaching up to 34°C (93°F) and lows dropping to around 6°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec424750546267727267594946
Data source: Temperature data for Valpacos 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 Valpacos

In Valpacos in September, the precipitation amount is 28 mm (1.1 in) over the course of 4 days.

September Precipitation Trends in Valpacos

The chart displays monthly precipitation patterns in Valpacos, 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 Valpacos, September typically receives around 28 mm (1.1 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec367072703228131128587195
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Valpacos

In Valpacos in September, humidity is 63%. With an average temperature of 19°C (67°F), this humidity feels like a warm embrace that adds a touch of heaviness to the air, making it slightly uncomfortable for traveling but still manageable with light clothing and plenty of hydration.

September Average Humidity in Valpacos

This chart illustrates the average monthly humidity levels in Valpacos, 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 Valpacos is approximately 63%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%85%79%77%76%64%54%52%63%78%90%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Valpacos

In Valpacos 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 Valpacos.

Maximum UV Index Levels in Valpacos for September

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

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

This table compares monthly weather conditions in Valpacos, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (42°F)36 mm (1.4 inches)91%low
February Weather8°C (47°F)70 mm (2.8 inches)85%moderate
March Weather10°C (50°F)72 mm (2.8 inches)79%high
April Weather12°C (55°F)70 mm (2.8 inches)77%very high
May Weather17°C (62°F)32 mm (1.3 inches)76%very high
June Weather19°C (67°F)28 mm (1.1 inches)64%extreme
July Weather22°C (73°F)13 mm (0.5 inches)54%very high
August Weather22°C (72°F)11 mm (0.4 inches)52%very high
September Weather19°C (67°F)28 mm (1.1 inches)63%very high
October Weather15°C (59°F)58 mm (2.3 inches)78%high
November Weather10°C (49°F)71 mm (2.8 inches)90%moderate
December Weather8°C (46°F)95 mm (3.7 inches)91%low

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