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September Weather in Rubiais, Portugal

Last updated: August 27, 2025

In September, the average temperature in Rubiais, Portugal hovers around 18°C (65°F). Expect a pleasant range, with minimums dipping to 10°C (50°F) and maxima soaring to 29°C (84°F). During this period, the area experiences a total precipitation of 49 mm (1.9 in) spread across about 7 days, coupled with an average humidity level of 71%. Make sure to pack accordingly!

September Temperature in Rubiais

In September in Rubiais, the average temperature is 18°C (65°F). Maximums can reach 29°C (84°F) and minimums can be as low as 10°C (50°F). This makes it a pleasant time to visit, as you can enjoy mild weather perfect for outdoor activities.

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

The chart illustrates September temperature patterns in Rubiais, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rubiais, September typically has an average temperature of 18°C (65°F), with highs reaching up to 29°C (84°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec495253556063666765605452
Data source: Temperature data for Rubiais 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 Rubiais

In Rubiais in September, the precipitation amount is 49 mm (1.9 in) over the course of 7 days.

September Precipitation Trends in Rubiais

The chart displays monthly precipitation patterns in Rubiais, 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 Rubiais, September typically receives around 49 mm (1.9 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec1311731821669862232749144208243
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Rubiais

In Rubiais in September humidity is 71%. With an average temperature of 18°C (65°F), this humidity feels like a warm embrace, making it a bit sticky and muggy, which can be slightly uncomfortable for traveling, especially if you're engaging in outdoor activities or exploring the city on foot.

September Average Humidity in Rubiais

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

In Rubiais in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Rubiais.

Maximum UV Index Levels in Rubiais for September

The chart shows the monthly maximum UV Index (UVI) for Rubiais 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 Rubiais typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2468910997632
Data source: Rubiais 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 Rubiais Compares to Other Months

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

This table compares monthly weather conditions in Rubiais, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (49°F)131 mm (5.2 inches)87%low
February Weather11°C (52°F)173 mm (6.8 inches)81%moderate
March Weather11°C (53°F)182 mm (7.2 inches)78%high
April Weather13°C (56°F)166 mm (6.5 inches)79%very high
May Weather16°C (60°F)98 mm (3.9 inches)78%very high
June Weather17°C (63°F)62 mm (2.4 inches)71%very high
July Weather19°C (67°F)22 mm (0.9 inches)63%very high
August Weather19°C (67°F)27 mm (1.0 inches)64%very high
September Weather18°C (65°F)49 mm (1.9 inches)71%high
October Weather16°C (60°F)144 mm (5.7 inches)79%high
November Weather12°C (54°F)208 mm (8.2 inches)86%moderate
December Weather11°C (52°F)243 mm (9.6 inches)87%low

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