January Weather in Rosais, Portugal

Last updated: August 27, 2025

In Rosais, Portugal, the average temperature in January hovers around 16°C (61°F). Expect a minimum of 11°C (53°F) and a comfortable maximum of 19°C (66°F). The month brings a total precipitation of 84 mm (3.3 in), spread over approximately 12 days. With an average humidity of 84%, it’s a time to embrace the refreshing atmosphere!

January Temperature in Rosais

In January in Rosais, the average temperature is 16°C (61°F). The maximum can reach 19°C (66°F), while the minimum can be as low as 11°C (53°F). This mild climate makes it a pleasant time for exploring the sights and enjoying outdoor activities.

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

The chart illustrates January temperature patterns in Rosais, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rosais, January typically has an average temperature of 16°C (61°F), with highs reaching up to 19°C (66°F) and lows dropping to around 11°C (53°F).

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

January Precipitation in Rosais

In Rosais in January, the precipitation amount is 84 mm (3.3 in) over a span of 12 days.

January Precipitation Trends in Rosais

The chart displays monthly precipitation patterns in Rosais, 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 Rosais, January typically receives around 84 mm (3.3 inches) of precipitation spread over approximately 12 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 Rosais

In Rosais in January, humidity is 84%. With an average temperature of 16°C (61°F), this humidity feels like a blanket of warmth, making travel slightly sticky but overall comfortable, as long as you stay hydrated and take breaks in the shade.

January Average Humidity in Rosais

This chart illustrates the average monthly humidity levels in Rosais, 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 Rosais is approximately 84%, 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 Rosais

In Rosais 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 Rosais, you can check the information here.

Maximum UV Index Levels in Rosais for January

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

Data source: Rosais 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 Rosais Compares to Other Months

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

This table compares monthly weather conditions in Rosais, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	16°C (61°F)	84 mm (3.3 inches)	84%	moderate
February Weather	15°C (59°F)	77 mm (3.0 inches)	83%	moderate
March Weather	15°C (59°F)	56 mm (2.2 inches)	85%	high
April Weather	15°C (60°F)	75 mm (2.9 inches)	85%	very high
May Weather	16°C (62°F)	58 mm (2.3 inches)	83%	very high
June Weather	19°C (66°F)	40 mm (1.6 inches)	85%	extreme
July Weather	21°C (70°F)	28 mm (1.1 inches)	86%	very high
August Weather	22°C (72°F)	51 mm (2.0 inches)	83%	very high
September Weather	22°C (71°F)	51 mm (2.0 inches)	83%	very high
October Weather	20°C (68°F)	75 mm (2.9 inches)	79%	high
November Weather	18°C (65°F)	122 mm (4.8 inches)	80%	moderate
December Weather	17°C (62°F)	103 mm (4.1 inches)	85%	moderate