December Weather in Aljustrel, Portugal

Last updated: August 27, 2025

In Aljustrel, Portugal, the average temperature in December hovers around 11°C (53°F). Expect a minimum of 0°C (32°F) and a pleasant maximum of 22°C (71°F). During this time, precipitation amounts to 40 mm (1.6 in), spread over approximately 6 days. The air is typically quite humid, with an average humidity level of 81%.

December Temperature in Aljustrel

In December in Aljustrel, the average temperature is 11°C (53°F). The maximum can reach 22°C (71°F), while the minimum can be as low as 0°C (32°F). It’s a great time to visit if you enjoy mild weather and are prepared for some fluctuations in temperature.

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

The chart illustrates December temperature patterns in Aljustrel, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Aljustrel, December typically has an average temperature of 11°C (53°F), with highs reaching up to 22°C (71°F) and lows dropping to around 0°C (32°F).

Data source: Temperature data for Aljustrel generated using information from the Copernicus Climate Change Service.

December Precipitation in Aljustrel

In Aljustrel in December, the precipitation amount is 40 mm (1.6 in) over the course of 6 days.

December Precipitation Trends in Aljustrel

The chart displays monthly precipitation patterns in Aljustrel, 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 Aljustrel, December typically receives around 40 mm (1.6 inches) of precipitation spread over approximately 6 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Aljustrel

In Aljustrel in December, humidity is 81%. With an average temperature of 11°C (53°F), this humidity feels like a damp chill that can make outdoor activities uncomfortable, requiring layers for protection against the moisture in the air while exploring.

December Average Humidity in Aljustrel

This chart illustrates the average monthly humidity levels in Aljustrel, 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 Aljustrel is approximately 81%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Aljustrel

In Aljustrel 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 Aljustrel, you can check the information here.

Maximum UV Index Levels in Aljustrel for December

The chart shows the monthly maximum UV Index (UVI) for Aljustrel 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 Aljustrel typically reaches 3, which falls under the moderate exposure category.

Data source: Aljustrel 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 Aljustrel Compares to Other Months

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

This table compares monthly weather conditions in Aljustrel, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (49°F)	24 mm (1.0 inches)	80%	moderate
February Weather	12°C (54°F)	45 mm (1.8 inches)	73%	moderate
March Weather	13°C (56°F)	77 mm (3.0 inches)	71%	high
April Weather	15°C (60°F)	65 mm (2.6 inches)	69%	very high
May Weather	19°C (67°F)	31 mm (1.2 inches)	69%	very high
June Weather	21°C (70°F)	10 mm (0.4 inches)	67%	extreme
July Weather	23°C (74°F)	3 mm (0.1 inches)	69%	extreme
August Weather	24°C (76°F)	2 mm (0.1 inches)	68%	very high
September Weather	23°C (73°F)	14 mm (0.6 inches)	71%	very high
October Weather	19°C (67°F)	43 mm (1.7 inches)	75%	high
November Weather	14°C (57°F)	52 mm (2.1 inches)	78%	moderate
December Weather	11°C (53°F)	40 mm (1.6 inches)	81%	moderate