January Weather in Arcos de Valdevez, Portugal

Last updated: August 27, 2025

In January, the average temperature in Arcos de Valdevez, Portugal hovers around 8°C (46°F). Expect a chilly minimum of -4°C (26°F) and a pleasant maximum reaching 21°C (70°F). During this month, precipitation averages 147 mm (5.8 in) over approximately 9 days, accompanied by a relatively high humidity level of 87%.

January Temperature in Arcos de Valdevez

In January in Arcos de Valdevez, the average temperature is 8°C (46°F). The maximum can reach 21°C (70°F), and the minimum can be as low as -4°C (26°F). Be prepared for a wide range of temperatures while traveling, and pack accordingly!

January Weather in Arcos de Valdevez: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Arcos de Valdevez, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arcos de Valdevez, January typically has an average temperature of 8°C (46°F), with highs reaching up to 21°C (70°F) and lows dropping to around -4°C (26°F).

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

January Precipitation in Arcos de Valdevez

In Arcos de Valdevez in January, the precipitation amount totals 147 mm (5.8 in) over a span of 9 days.

January Precipitation Trends in Arcos de Valdevez

The chart displays monthly precipitation patterns in Arcos de Valdevez, 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 Arcos de Valdevez, January typically receives around 147 mm (5.8 inches) of precipitation spread over approximately 9 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Arcos de Valdevez

In Arcos de Valdevez in January, humidity is 87%. With an average temperature of 8°C (46°F), this humidity feels like a chilly, damp fog clinging to your skin, making outdoor activities a bit uncomfortable and causing even mild exertion to leave you feeling clammy and cold.

January Average Humidity in Arcos de Valdevez

This chart illustrates the average monthly humidity levels in Arcos de Valdevez, 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 Arcos de Valdevez 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 Arcos de Valdevez

In Arcos de Valdevez in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Arcos de Valdevez, you can visit Hourly UV Index in Arcos de Valdevez.

Maximum UV Index Levels in Arcos de Valdevez for January

The chart shows the monthly maximum UV Index (UVI) for Arcos de Valdevez 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 Arcos de Valdevez typically reaches 2, which falls under the low exposure category.

Data source: Arcos de Valdevez 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 Arcos de Valdevez Compares to Other Months

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

This table compares monthly weather conditions in Arcos de Valdevez, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (46°F)	147 mm (5.8 inches)	87%	low
February Weather	10°C (50°F)	209 mm (8.2 inches)	81%	moderate
March Weather	11°C (51°F)	205 mm (8.1 inches)	78%	high
April Weather	13°C (55°F)	179 mm (7.0 inches)	79%	very high
May Weather	16°C (61°F)	119 mm (4.7 inches)	78%	very high
June Weather	17°C (64°F)	70 mm (2.8 inches)	71%	extreme
July Weather	20°C (68°F)	34 mm (1.3 inches)	63%	very high
August Weather	20°C (68°F)	34 mm (1.4 inches)	64%	very high
September Weather	19°C (66°F)	59 mm (2.3 inches)	71%	very high
October Weather	15°C (59°F)	166 mm (6.5 inches)	79%	high
November Weather	11°C (52°F)	228 mm (9.0 inches)	86%	moderate
December Weather	9°C (49°F)	273 mm (10.8 inches)	87%	low