January Weather in Arganil, Portugal

Last updated: August 27, 2025

In January, the average temperature in Arganil, Portugal hovers around 7°C (45°F), with lows dipping to a chilly -4°C (25°F) and highs reaching a pleasant 18°C (65°F). Expect 68 mm (2.7 inches) of rainfall spread across 8 days, resulting in an average humidity level of a damp 87%. Prepare for a mix of cool breezes and the occasional shower!

January Temperature in Arganil

In January in Arganil, the average temperature is 7°C (45°F). The maximum can reach 18°C (65°F) while the minimum can drop to as low as -4°C (25°F). Be sure to pack layers to stay comfortable during your travels!

January Weather in Arganil: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Arganil, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arganil, January typically has an average temperature of 7°C (45°F), with highs reaching up to 18°C (65°F) and lows dropping to around -4°C (25°F).

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

January Precipitation in Arganil

In Arganil in January, the precipitation amount is 68 mm (2.7 in) spread over 8 days.

January Precipitation Trends in Arganil

The chart displays monthly precipitation patterns in Arganil, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Arganil, January typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 8 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Arganil

In Arganil in January, humidity is 87%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making outdoor adventures somewhat uncomfortable and urging travelers to seek refuge in cozy cafes or warm indoor activities.

January Average Humidity in Arganil

This chart illustrates the average monthly humidity levels in Arganil, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Arganil is approximately 87%, offering insight into how humid the weather typically is during this month.

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

January UV Index in Arganil

In Arganil in January, 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 Arganil, you can check the information here.

Maximum UV Index Levels in Arganil for January

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

Data source: Arganil January 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 January Weather in Arganil Compares to Other Months

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

This table compares monthly weather conditions in Arganil, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	68 mm (2.7 inches)	87%	moderate
February Weather	10°C (50°F)	103 mm (4.1 inches)	81%	moderate
March Weather	11°C (52°F)	134 mm (5.3 inches)	78%	high
April Weather	13°C (55°F)	137 mm (5.4 inches)	79%	very high
May Weather	16°C (61°F)	62 mm (2.4 inches)	78%	very high
June Weather	18°C (65°F)	38 mm (1.5 inches)	71%	extreme
July Weather	21°C (70°F)	13 mm (0.5 inches)	63%	very high
August Weather	21°C (70°F)	14 mm (0.6 inches)	64%	very high
September Weather	20°C (68°F)	42 mm (1.7 inches)	71%	very high
October Weather	16°C (61°F)	96 mm (3.8 inches)	79%	high
November Weather	11°C (52°F)	143 mm (5.6 inches)	86%	moderate
December Weather	9°C (49°F)	137 mm (5.4 inches)	87%	moderate