August Weather in Sao Luis, Portugal

Last updated: August 27, 2025

In August, the average temperature in Sao Luis, Portugal is a pleasant 22°C (71°F), offering a comfortable climate. Temperatures can fluctuate, dipping to a minimum of 15°C (58°F) and soaring to a maximum of 39°C (103°F). With only 2 mm (0.1 in) of precipitation over 0 days, you can expect mostly dry weather. The average humidity sits at a moderate 68%, making it a great time to enjoy everything this destination has to offer!

August Temperature in Sao Luis

In August in Sao Luis, the average temperature is 22°C (71°F). Maximums can reach 39°C (103°F) and minimums can be as low as 15°C (58°F). Overall, this makes it an ideal time for travelers seeking warm weather while still enjoying cooler evenings.

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

The chart illustrates August 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, August typically has an average temperature of 22°C (71°F), with highs reaching up to 39°C (103°F) and lows dropping to around 15°C (58°F).

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

August Precipitation in Sao Luis

In Sao Luis in August, the precipitation amount is 2 mm (0.1 in) during a span of 0 days.

August Precipitation Trends in Sao Luis

The chart displays monthly precipitation patterns in Sao Luis, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Sao Luis, August typically receives around 2 mm (0.1 inches) of precipitation spread over approximately 0 days.

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

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Millimeters (mm) Inches (in)

August Humidity in Sao Luis

In Sao Luis in August, humidity is 68%. With an average temperature of 22°C (71°F), this humidity feels like a warm embrace, making traveling quite pleasant yet slightly sticky as you explore the sights.

August Average Humidity in Sao Luis

This chart illustrates the average monthly humidity levels in Sao Luis, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Sao Luis is approximately 68%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Sao Luis

In Sao Luis in August, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Sao Luis.

Maximum UV Index Levels in Sao Luis for August

The chart shows the monthly maximum UV Index (UVI) for Sao Luis in August, 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 August, the maximum UV index in Sao Luis typically reaches 10, which falls under the very high exposure category.

Data source: Sao Luis August 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 August 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 August’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 August’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