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December Weather in Rubiais, Portugal

Last updated: August 27, 2025

In December, the average temperature in Rubiais, Portugal hovers around 11°C (52°F). Expect cool conditions with a minimum of 3°C (37°F) and a pleasant maximum of 18°C (65°F). Be prepared for rain, as precipitation can total 243 mm (9.6 in) over approximately 17 days, along with a high average humidity of 87%.

December Temperature in Rubiais

In December in Rubiais, the average temperature is 11°C (52°F). The maximum can reach 18°C (65°F), and the minimum can be as low as 3°C (37°F). It's advisable to pack layers for comfortable exploring during this time.

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

The chart illustrates December 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, December typically has an average temperature of 11°C (52°F), with highs reaching up to 18°C (65°F) and lows dropping to around 3°C (37°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.

December Precipitation in Rubiais

In Rubiais in December, the precipitation amount is 243 mm (9.6 in) during a total of 17 days, indicating a relatively wet period.

December Precipitation Trends in Rubiais

The chart displays monthly precipitation patterns in Rubiais, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Rubiais, December typically receives around 243 mm (9.6 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec1311731821669862232749144208243
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Rubiais

In Rubiais in December, humidity is 87%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that can make your clothes cling uncomfortably, leaving you feeling slightly weighed down while exploring the area.

December Average Humidity in Rubiais

This chart illustrates the average monthly humidity levels in Rubiais, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Rubiais is approximately 87%, 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 December generated using information from the Copernicus Climate Change Service.

December UV Index in Rubiais

In Rubiais in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Rubiais, you can visit Hourly UV Index in Rubiais.

Maximum UV Index Levels in Rubiais for December

The chart shows the monthly maximum UV Index (UVI) for Rubiais in December, 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 December, the maximum UV index in Rubiais typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2468910997632
Data source: Rubiais December 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 December 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 December’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 December’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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