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September Weather in Olival Basto, Portugal

Last updated: August 27, 2025

In September, the average temperature in Olival Basto, Portugal hovers around 20°C (68°F), with a minimum dipping to 14°C (58°F) and a maximum soaring to 29°C (84°F). Expect a moderate precipitation of 27 mm (1.1 in) over the course of 2 days, contributing to an average humidity level of 67%.

September Temperature in Olival Basto

In September in Olival Basto, the average temperature is 20°C (68°F). Maximum temperatures can reach 29°C (84°F), while minimums can drop to as low as 14°C (58°F). This mild climate makes Olival Basto an ideal destination for travelers looking to enjoy comfortable outdoor activities.

September Weather in Olival Basto: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Olival Basto, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Olival Basto, September typically has an average temperature of 20°C (68°F), with highs reaching up to 29°C (84°F) and lows dropping to around 14°C (58°F).
JanFebMarAprMayJunJulAugSepOctNovDec535556586365686968655956
Data source: Temperature data for Olival Basto 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 Olival Basto

In Olival Basto in September, the precipitation amount is 27 mm (1.1 in) over the course of 2 days.

September Precipitation Trends in Olival Basto

The chart displays monthly precipitation patterns in Olival Basto, 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 Olival Basto, September typically receives around 27 mm (1.1 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec3753667336115327468062
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Olival Basto

In Olival Basto in September humidity is 67%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, making travel comfortable yet slightly sticky, as the air clings to your skin and invites you to enjoy the sights at a leisurely pace.

September Average Humidity in Olival Basto

This chart illustrates the average monthly humidity levels in Olival Basto, 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 Olival Basto is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%75%72%70%70%63%60%60%68%74%83%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Olival Basto

In Olival Basto 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 Olival Basto.

Maximum UV Index Levels in Olival Basto for September

The chart shows the monthly maximum UV Index (UVI) for Olival Basto 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 Olival Basto typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098643
Data source: Olival Basto 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 Olival Basto Compares to Other Months

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

This table compares monthly weather conditions in Olival Basto, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (53°F)37 mm (1.5 inches)85%moderate
February Weather13°C (55°F)53 mm (2.1 inches)75%moderate
March Weather14°C (57°F)66 mm (2.6 inches)72%high
April Weather15°C (59°F)73 mm (2.9 inches)70%very high
May Weather17°C (63°F)36 mm (1.4 inches)70%very high
June Weather18°C (66°F)11 mm (0.4 inches)63%extreme
July Weather20°C (68°F)5 mm (0.2 inches)60%very high
August Weather20°C (69°F)3 mm (0.1 inches)60%very high
September Weather20°C (68°F)27 mm (1.1 inches)67%very high
October Weather18°C (65°F)46 mm (1.8 inches)74%high
November Weather15°C (59°F)80 mm (3.2 inches)83%moderate
December Weather13°C (56°F)62 mm (2.4 inches)85%moderate

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