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December Weather in Avis, Portugal

Last updated: August 27, 2025

In December, the average temperature in Avis, Portugal is a crisp 11°C (52°F). Expect a minimum dip to -1°C (30°F) and a pleasant maximum of 20°C (69°F). During this time, you can anticipate about 61 mm (2.4 in) of precipitation spread across 8 days, contributing to the region's 85% average humidity. Prepare for a mix of cool and refreshing days!

December Temperature in Avis

In December in Avis, the average temperature is 11°C (52°F). The maximum can reach 20°C (69°F), and the minimum can be as low as -1°C (30°F). This mild range makes it an ideal time for travelers seeking a mix of outdoor activities and comfortable exploring.

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

The chart illustrates December temperature patterns in Avis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Avis, December typically has an average temperature of 11°C (52°F), with highs reaching up to 20°C (69°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec485355596670747572655652
Data source: Temperature data for Avis 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 Avis

In Avis in December, the precipitation amount is 61 mm (2.4 in) distributed over 8 days.

December Precipitation Trends in Avis

The chart displays monthly precipitation patterns in Avis, 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 Avis, December typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec3649858439155725437261
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Avis

In Avis in December, humidity is 85%. With an average temperature of 11°C (52°F), this humidity feels like a damp blanket wrapping around you, making travel quite uncomfortable as the air feels heavy and can sap your energy.

December Average Humidity in Avis

This chart illustrates the average monthly humidity levels in Avis, 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 Avis is approximately 85%, 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 December generated using information from the Copernicus Climate Change Service.

December UV Index in Avis

In Avis in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Avis, you can check the information here.

Maximum UV Index Levels in Avis for December

The chart shows the monthly maximum UV Index (UVI) for Avis 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 Avis typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689111098643
Data source: Avis 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 Avis Compares to Other Months

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

This table compares monthly weather conditions in Avis, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (49°F)35 mm (1.4 inches)85%moderate
February Weather12°C (53°F)49 mm (1.9 inches)75%moderate
March Weather13°C (56°F)85 mm (3.3 inches)72%high
April Weather15°C (59°F)84 mm (3.3 inches)70%very high
May Weather19°C (67°F)39 mm (1.5 inches)70%very high
June Weather21°C (70°F)15 mm (0.6 inches)63%extreme
July Weather24°C (75°F)4 mm (0.2 inches)60%very high
August Weather24°C (76°F)6 mm (0.3 inches)60%very high
September Weather22°C (73°F)25 mm (1.0 inches)67%very high
October Weather18°C (66°F)43 mm (1.7 inches)74%high
November Weather13°C (56°F)72 mm (2.8 inches)83%moderate
December Weather11°C (52°F)61 mm (2.4 inches)85%moderate

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