January Weather in Vieira de Leiria, Portugal

Last updated: August 27, 2025

In January, the average temperature in Vieira de Leiria, Portugal hovers around 11°C (52°F), with lows dipping to 3°C (37°F) and highs reaching up to 19°C (67°F). Expect about 60 mm (2.4 in) of precipitation over 8 days, accompanied by an average humidity of 85%. Prepare for a wet but mild month!

January Temperature in Vieira de Leiria

In January in Vieira de Leiria, the average temperature is 11°C (52°F). Maximum temperatures can reach 19°C (67°F), while minimums can dip as low as 3°C (37°F). It's a great time to explore Vieira de Leiria with its mild weather, ideal for outdoor activities and sightseeing.

January Weather in Vieira de Leiria: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Vieira de Leiria, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vieira de Leiria, January typically has an average temperature of 11°C (52°F), with highs reaching up to 19°C (67°F) and lows dropping to around 3°C (37°F).

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

January Precipitation in Vieira de Leiria

In Vieira de Leiria in January, the total precipitation amount is 60 mm (2.4 in) spread over the course of 8 days.

January Precipitation Trends in Vieira de Leiria

The chart displays monthly precipitation patterns in Vieira de Leiria, 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 Vieira de Leiria, January typically receives around 60 mm (2.4 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 Vieira de Leiria

In Vieira de Leiria in January, humidity is 85%. With an average temperature of 11°C (52°F), this humidity feels like a damp blanket wrapping around you, making travel quite uncomfortable as the air feels heavy and can sap your energy.

January Average Humidity in Vieira de Leiria

This chart illustrates the average monthly humidity levels in Vieira de Leiria, 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 Vieira de Leiria 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 Vieira de Leiria

In Vieira de Leiria 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 Vieira de Leiria, you can check the information here.

Maximum UV Index Levels in Vieira de Leiria for January

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

Data source: Vieira de Leiria 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 Vieira de Leiria Compares to Other Months

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

This table compares monthly weather conditions in Vieira de Leiria, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (52°F)	60 mm (2.4 inches)	85%	moderate
February Weather	12°C (55°F)	71 mm (2.8 inches)	75%	moderate
March Weather	13°C (56°F)	97 mm (3.8 inches)	72%	high
April Weather	14°C (58°F)	101 mm (4.0 inches)	70%	very high
May Weather	16°C (62°F)	54 mm (2.1 inches)	70%	very high
June Weather	17°C (63°F)	26 mm (1.0 inches)	63%	extreme
July Weather	19°C (66°F)	10 mm (0.4 inches)	60%	very high
August Weather	19°C (66°F)	9 mm (0.3 inches)	60%	very high
September Weather	19°C (66°F)	28 mm (1.1 inches)	67%	very high
October Weather	17°C (63°F)	82 mm (3.2 inches)	74%	high
November Weather	14°C (58°F)	112 mm (4.4 inches)	83%	moderate
December Weather	13°C (55°F)	94 mm (3.7 inches)	85%	moderate