January Weather in Portugalete, Spain

Last updated: August 27, 2025

In January, the average temperature in Portugalete, Spain hovers around 8°C (46°F), with chilly nights dipping to a minimum of -1°C (30°F) and pleasant daytime highs reaching up to 19°C (66°F). This month, expect about 117 mm (4.6 in) of precipitation spread over 13 days, resulting in a high average humidity of 85%. Be prepared for a mix of cool weather and damp conditions!

January Temperature in Portugalete

In January in Portugalete, the average temperature is 8°C (46°F), with maximums reaching up to 19°C (66°F) and minimums dropping as low as -1°C (30°F). Visitors should be prepared for a range of temperatures, making it essential to pack layers for comfort while exploring.

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

The chart illustrates January temperature patterns in Portugalete, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Portugalete, January typically has an average temperature of 8°C (46°F), with highs reaching up to 19°C (66°F) and lows dropping to around -1°C (30°F).

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

January Precipitation in Portugalete

In Portugalete in January, the total precipitation amount is 117 mm (4.6 in) spread over 13 days.

January Precipitation Trends in Portugalete

The chart displays monthly precipitation patterns in Portugalete, 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 Portugalete, January typically receives around 117 mm (4.6 inches) of precipitation spread over approximately 13 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 Portugalete

In Portugalete in January humidity is 85%. With an average temperature of 8°C (46°F), this humidity feels like a cold, damp embrace that can leave travelers feeling chilled and uncomfortable, making outdoor exploration less appealing and encouraging the search for cozy indoor activities instead.

January Average Humidity in Portugalete

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

In Portugalete 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 Portugalete, you can visit Hourly UV Index in Portugalete.

Maximum UV Index Levels in Portugalete for January

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

Data source: Portugalete 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 Portugalete Compares to Other Months

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

This table compares monthly weather conditions in Portugalete, 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)	117 mm (4.6 inches)	85%	low
February Weather	10°C (50°F)	103 mm (4.0 inches)	83%	moderate
March Weather	10°C (51°F)	98 mm (3.9 inches)	82%	high
April Weather	12°C (54°F)	92 mm (3.6 inches)	81%	high
May Weather	14°C (58°F)	82 mm (3.2 inches)	81%	very high
June Weather	17°C (63°F)	103 mm (4.1 inches)	83%	very high
July Weather	19°C (67°F)	65 mm (2.6 inches)	87%	very high
August Weather	20°C (67°F)	62 mm (2.5 inches)	82%	very high
September Weather	18°C (65°F)	81 mm (3.2 inches)	77%	high
October Weather	15°C (59°F)	105 mm (4.1 inches)	80%	moderate
November Weather	11°C (53°F)	158 mm (6.2 inches)	83%	moderate
December Weather	10°C (50°F)	154 mm (6.1 inches)	85%	low