January Weather in Sao Luis, Portugal

Last updated: August 27, 2025

In January, the average temperature in Sao Luis, Portugal hovers around 11°C (52°F). Expect a chilly minimum of 1°C (34°F) and a warm maximum of 22°C (71°F). With 29 mm (1.1 in) of precipitation spread across 4 days, and an average humidity level of 80%, prepare for a mix of cool and damp conditions!

January Temperature in Sao Luis

In January, in Sao Luis, the average temperature is 11°C (52°F). Maximum temperatures can reach 22°C (71°F), while minimums can drop to 1°C (34°F). This makes Sao Luis a great destination for travelers seeking mild weather and the chance to enjoy a variety of outdoor activities.

January Weather in Sao Luis: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Sao Luis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sao Luis, January typically has an average temperature of 11°C (52°F), with highs reaching up to 22°C (71°F) and lows dropping to around 1°C (34°F).

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

January Precipitation in Sao Luis

In Sao Luis in January, the precipitation amount is 29 mm (1.1 in) over a span of 4 days.

January Precipitation Trends in Sao Luis

The chart displays monthly precipitation patterns in Sao Luis, 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 Sao Luis, January typically receives around 29 mm (1.1 inches) of precipitation spread over approximately 4 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 Sao Luis

In Sao Luis in January, humidity is 80%. With an average temperature of 11°C (52°F), this humidity feels like a damp blanket wrapping around you, making travel a bit uncomfortable as you navigate through the thick, languid air.

January Average Humidity in Sao Luis

This chart illustrates the average monthly humidity levels in Sao Luis, 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 Sao Luis is approximately 80%, 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 Sao Luis

In Sao Luis 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 Sao Luis, you can check the information here.

Maximum UV Index Levels in Sao Luis for January

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

Data source: Sao Luis 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 Sao Luis Compares to Other Months

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

This table compares monthly weather conditions in Sao Luis, 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)	29 mm (1.1 inches)	80%	moderate
February Weather	13°C (55°F)	54 mm (2.1 inches)	73%	moderate
March Weather	14°C (57°F)	83 mm (3.3 inches)	71%	high
April Weather	15°C (60°F)	66 mm (2.6 inches)	69%	very high
May Weather	18°C (65°F)	23 mm (0.9 inches)	69%	very high
June Weather	19°C (67°F)	10 mm (0.4 inches)	67%	extreme
July Weather	21°C (70°F)	3 mm (0.1 inches)	69%	very high
August Weather	22°C (71°F)	2 mm (0.1 inches)	68%	very high
September Weather	21°C (70°F)	11 mm (0.4 inches)	71%	very high
October Weather	19°C (66°F)	45 mm (1.8 inches)	75%	high
November Weather	15°C (59°F)	58 mm (2.3 inches)	78%	moderate
December Weather	13°C (55°F)	51 mm (2.0 inches)	81%	moderate