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December Weather in Arronches, Portugal

Last updated: August 27, 2025

In Arronches, Portugal, the average temperature in December is a cool 10°C (51°F). Expect a chilly minimum of -2°C (29°F), with highs reaching up to 19°C (67°F). Throughout the month, precipitation totals 61 mm (2.4 in) spread over 8 days, contributing to an average humidity of 87%. Stay prepared for a mix of conditions!

December Temperature in Arronches

In December in Arronches, the average temperature is 10°C (51°F). The maximum can reach 19°C (67°F), and the minimum can be as low as -2°C (29°F). This weather makes it essential to pack layers for your travels, allowing you to stay comfortable throughout the fluctuating temperatures.

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

The chart illustrates December temperature patterns in Arronches, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arronches, December typically has an average temperature of 10°C (51°F), with highs reaching up to 19°C (67°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec475254586672777873655550
Data source: Temperature data for Arronches 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 Arronches

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

December Precipitation Trends in Arronches

The chart displays monthly precipitation patterns in Arronches, 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 Arronches, December typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec3144817434113427466761
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Arronches

In Arronches 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 Arronches

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

In Arronches 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 Arronches, you can check the information here.

Maximum UV Index Levels in Arronches for December

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

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

This table compares monthly weather conditions in Arronches, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)30 mm (1.2 inches)87%moderate
February Weather11°C (52°F)44 mm (1.7 inches)76%moderate
March Weather12°C (54°F)81 mm (3.2 inches)68%high
April Weather15°C (58°F)74 mm (2.9 inches)64%very high
May Weather19°C (67°F)34 mm (1.3 inches)62%very high
June Weather22°C (72°F)11 mm (0.4 inches)47%extreme
July Weather25°C (77°F)3 mm (0.1 inches)46%very high
August Weather26°C (79°F)4 mm (0.2 inches)42%very high
September Weather23°C (74°F)27 mm (1.0 inches)53%very high
October Weather18°C (65°F)46 mm (1.8 inches)69%high
November Weather13°C (55°F)67 mm (2.6 inches)85%moderate
December Weather10°C (51°F)61 mm (2.4 inches)87%moderate

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