January Weather in Lisbon, United States

Last updated: June 24, 2025

In January, the average temperature in Lisbon, United States hovers around -6°C (21°F), with fluctuations that can see a chilling minimum of -33°C (-27°F) and a surprising maximum of 12°C (54°F). Expect a moderate precipitation amount of 47 mm (1.9 in) distributed over 8 days, while the air maintains a crisp average humidity of 81%. Stay warm and prepared for a variety of winter weather!

January Temperature in Lisbon

In January in Lisbon, the average temperature is -6°C (21°F). Maximums can reach 12°C (54°F), and minimums can drop as low as -33°C (-27°F). Be prepared for a wide range of temperatures, and pack accordingly for your visit!

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

The chart illustrates January temperature patterns in Lisbon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lisbon, January typically has an average temperature of -6°C (21°F), with highs reaching up to 12°C (54°F) and lows dropping to around -33°C (-27°F).

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

January Precipitation in Lisbon

In Lisbon in January, the precipitation amount is 47 mm (1.9 in) over a span of 8 days.

January Precipitation Trends in Lisbon

The chart displays monthly precipitation patterns in Lisbon, 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 Lisbon, January typically receives around 47 mm (1.9 inches) of precipitation spread over approximately 8 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Lisbon

In Lisbon in January humidity is 81%. With an average temperature of -6°C (21°F), this humidity feels like an icy mist wrapping around you, making travel outdoors quite uncomfortable and requiring extra layers to stay warm while navigating the damp chill.

January Average Humidity in Lisbon

This chart illustrates the average monthly humidity levels in Lisbon, 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 Lisbon is approximately 81%, 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 Lisbon

In Lisbon 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 Lisbon, you can check the information here.

Maximum UV Index Levels in Lisbon for January

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

Data source: Lisbon 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 Lisbon Compares to Other Months

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

This table compares monthly weather conditions in Lisbon, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	47 mm (1.9 inches)	81%	moderate
February Weather	-5°C (23°F)	58 mm (2.3 inches)	81%	moderate
March Weather	3°C (38°F)	73 mm (2.9 inches)	81%	high
April Weather	9°C (48°F)	81 mm (3.2 inches)	82%	very high
May Weather	16°C (62°F)	150 mm (5.9 inches)	78%	very high
June Weather	23°C (73°F)	125 mm (4.9 inches)	81%	extreme
July Weather	24°C (76°F)	81 mm (3.2 inches)	79%	very high
August Weather	22°C (73°F)	83 mm (3.3 inches)	77%	very high
September Weather	19°C (67°F)	130 mm (5.1 inches)	78%	very high
October Weather	11°C (53°F)	136 mm (5.4 inches)	78%	high
November Weather	3°C (38°F)	48 mm (1.9 inches)	87%	moderate
December Weather	-1°C (30°F)	45 mm (1.8 inches)	84%	moderate