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December Weather in Campo Maior, Portugal

Last updated: August 27, 2025

In December, the average temperature in Campo Maior, Portugal is a mild 10°C (51°F). Expect lows of -2°C (28°F) and highs reaching 20°C (68°F). During this period, the region experiences about 51 mm (2.0 in) of precipitation over 5 days, contributing to a notably high average humidity of 87%.

December Temperature in Campo Maior

In December in Campo Maior, the average temperature is 10°C (51°F). The maximum can reach 20°C (68°F), while the minimum can drop as low as -2°C (28°F). Be sure to pack layers to stay comfortable during your travels!

December Weather in Campo Maior: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Campo Maior, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Campo Maior, December typically has an average temperature of 10°C (51°F), with highs reaching up to 20°C (68°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec475255596873798075665551
Data source: Temperature data for Campo Maior 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 Campo Maior

In Campo Maior in December, the precipitation amount is 51 mm (2.0 in) over a period of 5 days.

December Precipitation Trends in Campo Maior

The chart displays monthly precipitation patterns in Campo Maior, 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 Campo Maior, December typically receives around 51 mm (2.0 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec274069592983325415451
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Campo Maior

In Campo Maior in December humidity is 87%. With an average temperature of 10°C (51°F), this humidity feels like a heavy blanket enveloping you, making outdoor activities uncomfortable and sticky, and often requiring frequent breaks to stay hydrated and cool.

December Average Humidity in Campo Maior

This chart illustrates the average monthly humidity levels in Campo Maior, 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 Campo Maior is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%76%68%64%62%47%46%42%54%69%85%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Campo Maior

In Campo Maior 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 Campo Maior, you can check the information here.

Maximum UV Index Levels in Campo Maior for December

The chart shows the monthly maximum UV Index (UVI) for Campo Maior 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 Campo Maior typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3469101110108643
Data source: Campo Maior 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 Campo Maior Compares to Other Months

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

This table compares monthly weather conditions in Campo Maior, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)27 mm (1.0 inches)87%moderate
February Weather11°C (52°F)40 mm (1.6 inches)76%moderate
March Weather13°C (55°F)69 mm (2.7 inches)68%high
April Weather15°C (59°F)59 mm (2.3 inches)64%very high
May Weather20°C (68°F)28 mm (1.1 inches)62%very high
June Weather23°C (73°F)8 mm (0.3 inches)47%extreme
July Weather26°C (79°F)3 mm (0.1 inches)46%very high
August Weather27°C (80°F)3 mm (0.1 inches)42%very high
September Weather24°C (75°F)25 mm (1.0 inches)53%very high
October Weather19°C (66°F)41 mm (1.6 inches)69%high
November Weather13°C (55°F)54 mm (2.1 inches)85%moderate
December Weather10°C (51°F)51 mm (2.0 inches)87%moderate

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