January Weather in Rua, Portugal

Last updated: August 27, 2025

In January, the average temperature in Rua, Portugal hovers around 5°C (42°F). Expect minimum temperatures to dip to -4°C (24°F) and a maximum of 18°C (64°F). This month brings about 34 mm (1.3 in) of precipitation spread over 5 days, contributing to an average humidity of 87%.

January Temperature in Rua

In January in Rua, the average temperature is 5°C (42°F). Maximums can reach 18°C (64°F), while minimums can drop as low as -4°C (24°F). This makes it essential for travelers to pack layers to stay comfortable in fluctuating temperatures.

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

The chart illustrates January temperature patterns in Rua, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rua, January typically has an average temperature of 5°C (42°F), with highs reaching up to 18°C (64°F) and lows dropping to around -4°C (24°F).

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

January Precipitation in Rua

In Rua in January, the precipitation amount is 34 mm (1.3 in) over the course of 5 days.

January Precipitation Trends in Rua

The chart displays monthly precipitation patterns in Rua, 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 Rua, January typically receives around 34 mm (1.3 inches) of precipitation spread over approximately 5 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 Rua

In Rua in January humidity is 87%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and travel less inviting as the air becomes heavy and oppressive.

January Average Humidity in Rua

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

In Rua 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 Rua, you can check the information here.

Maximum UV Index Levels in Rua for January

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

Data source: Rua 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 Rua Compares to Other Months

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

This table compares monthly weather conditions in Rua, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (42°F)	34 mm (1.3 inches)	87%	moderate
February Weather	8°C (47°F)	69 mm (2.7 inches)	81%	moderate
March Weather	10°C (49°F)	79 mm (3.1 inches)	78%	high
April Weather	12°C (54°F)	85 mm (3.4 inches)	79%	very high
May Weather	16°C (61°F)	34 mm (1.3 inches)	78%	very high
June Weather	18°C (65°F)	37 mm (1.5 inches)	71%	extreme
July Weather	21°C (70°F)	17 mm (0.7 inches)	63%	very high
August Weather	21°C (70°F)	14 mm (0.6 inches)	64%	very high
September Weather	19°C (66°F)	37 mm (1.5 inches)	71%	very high
October Weather	15°C (59°F)	59 mm (2.3 inches)	79%	high
November Weather	9°C (49°F)	72 mm (2.8 inches)	86%	moderate
December Weather	7°C (45°F)	85 mm (3.3 inches)	87%	low