April Weather in Sao Luis, Portugal

Last updated: August 27, 2025

In April, the average temperature in Sao Luis, Portugal hovers around 15°C (60°F), with a minimum dipping to 8°C (46°F) and a maximum reaching 28°C (82°F). Expect about 66 mm (2.6 in) of precipitation spread over 11 days, contributing to an average humidity of 69%. Prepare for a pleasantly mild climate with a touch of rain!

April Temperature in Sao Luis

In April in Sao Luis, the average temperature is 15°C (60°F), with maximums reaching 28°C (82°F) and minimums dipping as low as 8°C (46°F). This pleasant weather makes Sao Luis an ideal destination for travelers looking to enjoy comfortable and varied conditions.

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

The chart illustrates April 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, April typically has an average temperature of 15°C (60°F), with highs reaching up to 28°C (82°F) and lows dropping to around 8°C (46°F).

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

April Precipitation in Sao Luis

In Sao Luis in April, the precipitation amount is 66 mm (2.6 in) spread over 11 days.

April Precipitation Trends in Sao Luis

The chart displays monthly precipitation patterns in Sao Luis, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Sao Luis, April typically receives around 66 mm (2.6 inches) of precipitation spread over approximately 11 days.

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

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Millimeters (mm) Inches (in)

April Humidity in Sao Luis

In Sao Luis in April, humidity is 69%. With an average temperature of 15°C (60°F), this humidity feels like a cool, damp embrace that can make outdoor activities feel slightly heavier and more exhausting, but still inviting for exploring the charming sights and sounds of the area.

April Average Humidity in Sao Luis

This chart illustrates the average monthly humidity levels in Sao Luis, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Sao Luis is approximately 69%, offering insight into how humid the weather typically is during this month.

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

April UV Index in Sao Luis

In Sao Luis in April, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Sao Luis.

Maximum UV Index Levels in Sao Luis for April

The chart shows the monthly maximum UV Index (UVI) for Sao Luis in April, 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 April, the maximum UV index in Sao Luis typically reaches 9, which falls under the very high exposure category.

Data source: Sao Luis April 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 April 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 April’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 April’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