January Weather in Alter do Chao, Portugal

Last updated: August 27, 2025

In January, the average temperature in Alter do Chao, Portugal hovers around 9°C (48°F). Expect a chilly minimum of -2°C (28°F), while a pleasant maximum can reach up to 20°C (69°F). During this time, precipitation amounts to 40 mm (1.6 in) over about 5 days, and humidity levels are relatively high at 85%. Enjoy the crisp atmosphere, but be prepared for occasional rain!

January Temperature in Alter do Chao

In January in Alter do Chao, the average temperature is 9°C (48°F), with maximums reaching 20°C (69°F) and minimums dropping as low as -2°C (28°F). This variability in weather makes it essential for travelers to pack for both cool and mild conditions.

January Weather in Alter do Chao: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Alter do Chao, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alter do Chao, January typically has an average temperature of 9°C (48°F), with highs reaching up to 20°C (69°F) and lows dropping to around -2°C (28°F).

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

January Precipitation in Alter do Chao

In Alter do Chao in January, the precipitation amount is 40 mm (1.6 in) over the course of 5 days.

January Precipitation Trends in Alter do Chao

The chart displays monthly precipitation patterns in Alter do Chao, 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 Alter do Chao, January typically receives around 40 mm (1.6 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 Alter do Chao

In Alter do Chao in January humidity is 85%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill enveloping you, making outdoor activities less enjoyable and requiring extra layers to stay warm and comfortable while traveling.

January Average Humidity in Alter do Chao

This chart illustrates the average monthly humidity levels in Alter do Chao, 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 Alter do Chao is approximately 85%, 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 Alter do Chao

In Alter do Chao 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 Alter do Chao, you can check the information here.

Maximum UV Index Levels in Alter do Chao for January

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

Data source: Alter do Chao 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 Alter do Chao Compares to Other Months

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

This table compares monthly weather conditions in Alter do Chao, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (48°F)	40 mm (1.6 inches)	85%	moderate
February Weather	11°C (53°F)	52 mm (2.0 inches)	75%	moderate
March Weather	13°C (55°F)	92 mm (3.6 inches)	72%	high
April Weather	15°C (59°F)	84 mm (3.3 inches)	70%	very high
May Weather	19°C (66°F)	37 mm (1.4 inches)	70%	very high
June Weather	21°C (70°F)	14 mm (0.6 inches)	63%	extreme
July Weather	24°C (75°F)	4 mm (0.2 inches)	60%	very high
August Weather	24°C (76°F)	5 mm (0.2 inches)	60%	very high
September Weather	22°C (73°F)	29 mm (1.1 inches)	67%	very high
October Weather	18°C (65°F)	52 mm (2.1 inches)	74%	high
November Weather	13°C (55°F)	80 mm (3.2 inches)	83%	moderate
December Weather	11°C (52°F)	73 mm (2.9 inches)	85%	moderate