December Weather in Montemor-o-Novo, Portugal

Last updated: August 27, 2025

In Montemor-o-Novo, Portugal, the average temperature in December hovers around 11°C (53°F). Expect a range where the minimum can drop to -1°C (31°F), while delightful highs can reach up to 20°C (68°F). During this month, precipitation totals about 59 mm (2.3 in), spread over approximately 9 days, contributing to an average humidity of 85%. Plan your activities accordingly!

December Temperature in Montemor-o-Novo

In December in Montemor-o-Novo, the average temperature is 11°C (53°F). The maximum can reach 20°C (68°F), while the minimum can drop as low as -1°C (31°F). This variability makes it essential for travelers to pack layers and be prepared for unexpected weather changes.

December Weather in Montemor-o-Novo: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Montemor-o-Novo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Montemor-o-Novo, December typically has an average temperature of 11°C (53°F), with highs reaching up to 20°C (68°F) and lows dropping to around -1°C (31°F).

Data source: Temperature data for Montemor-o-Novo generated using information from the Copernicus Climate Change Service.

December Precipitation in Montemor-o-Novo

In Montemor-o-Novo in December, the precipitation amount is 59 mm (2.3 in) over the course of 9 days.

December Precipitation Trends in Montemor-o-Novo

The chart displays monthly precipitation patterns in Montemor-o-Novo, 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 Montemor-o-Novo, December typically receives around 59 mm (2.3 inches) of precipitation spread over approximately 9 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 Montemor-o-Novo

In Montemor-o-Novo in December humidity is 85%. With an average temperature of 11°C (53°F), this humidity feels like a thick blanket wrapping around you, making every step feel heavier and creating a dampness in the air that can be exhausting for travelers.

December Average Humidity in Montemor-o-Novo

This chart illustrates the average monthly humidity levels in Montemor-o-Novo, 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 Montemor-o-Novo is approximately 85%, 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 Montemor-o-Novo

In Montemor-o-Novo 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 Montemor-o-Novo, you can check the information here.

Maximum UV Index Levels in Montemor-o-Novo for December

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

Data source: Montemor-o-Novo 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 Montemor-o-Novo Compares to Other Months

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

This table compares monthly weather conditions in Montemor-o-Novo, 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)	33 mm (1.3 inches)	85%	moderate
February Weather	12°C (54°F)	52 mm (2.1 inches)	75%	moderate
March Weather	13°C (56°F)	87 mm (3.4 inches)	72%	high
April Weather	15°C (59°F)	85 mm (3.4 inches)	70%	very high
May Weather	19°C (66°F)	39 mm (1.5 inches)	70%	very high
June Weather	21°C (70°F)	15 mm (0.6 inches)	63%	extreme
July Weather	23°C (74°F)	5 mm (0.2 inches)	60%	very high
August Weather	24°C (75°F)	5 mm (0.2 inches)	60%	very high
September Weather	22°C (72°F)	27 mm (1.1 inches)	67%	very high
October Weather	19°C (66°F)	42 mm (1.7 inches)	74%	high
November Weather	13°C (56°F)	69 mm (2.7 inches)	83%	moderate
December Weather	11°C (53°F)	59 mm (2.3 inches)	85%	moderate