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December Weather in Alcanena, Portugal

Last updated: August 27, 2025

In December, the average temperature in Alcanena, Portugal is a cool 11°C (52°F), with temperatures ranging from a brisk -2°C (28°F) to a mild 19°C (66°F). Expect 77 mm (3.0 in) of precipitation spread over approximately 10 days, contributing to an average humidity of 85%. Whether you're enjoying the chill or bracing for rain, be prepared for a unique climate experience!

December Temperature in Alcanena

In December in Alcanena, the average temperature is 11°C (52°F). Maximums can reach 19°C (66°F), while minimums can drop as low as -2°C (28°F). This range makes it a great time to visit for those who enjoy mild weather and crisp air.

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

The chart illustrates December temperature patterns in Alcanena, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alcanena, December typically has an average temperature of 11°C (52°F), with highs reaching up to 19°C (66°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec485355576366697069635552
Data source: Temperature data for Alcanena 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 Alcanena

In Alcanena in December, the total precipitation amount is 77 mm (3.0 in) spread over a duration of 10 days.

December Precipitation Trends in Alcanena

The chart displays monthly precipitation patterns in Alcanena, 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 Alcanena, December typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec5064103111572268357510777
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Alcanena

In Alcanena 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 Alcanena

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

In Alcanena 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 Alcanena, you can check the information here.

Maximum UV Index Levels in Alcanena for December

The chart shows the monthly maximum UV Index (UVI) for Alcanena 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 Alcanena typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346910111098643
Data source: Alcanena 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 Alcanena Compares to Other Months

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

This table compares monthly weather conditions in Alcanena, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (49°F)50 mm (2.0 inches)85%moderate
February Weather11°C (53°F)64 mm (2.5 inches)75%moderate
March Weather13°C (55°F)103 mm (4.0 inches)72%high
April Weather14°C (58°F)111 mm (4.4 inches)70%very high
May Weather17°C (64°F)57 mm (2.2 inches)70%very high
June Weather19°C (66°F)22 mm (0.9 inches)63%extreme
July Weather21°C (70°F)6 mm (0.2 inches)60%very high
August Weather21°C (70°F)7 mm (0.3 inches)60%very high
September Weather20°C (69°F)35 mm (1.4 inches)67%very high
October Weather17°C (63°F)75 mm (2.9 inches)74%high
November Weather13°C (55°F)107 mm (4.2 inches)83%moderate
December Weather11°C (52°F)77 mm (3.0 inches)85%moderate

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