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April Weather in San Luis, Argentina

Last updated: August 22, 2025

In April, the average temperature in San Luis, Argentina is a pleasant 17°C (63°F). Expect a minimum of 4°C (39°F) and a maximum of 31°C (88°F), providing a wide range of weather conditions. During this month, you'll encounter approximately 72 mm (2.8 in) of precipitation over 6 days, with an average humidity of 63% ensuring a refreshing atmosphere.

April Temperature in San Luis

In April in San Luis, the average temperature is 17°C (63°F). The maximum can reach 31°C (88°F), while the minimum can be as low as 4°C (39°F). This mild weather makes San Luis an ideal destination for travelers looking to enjoy a comfortable climate.

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

The chart illustrates April temperature patterns in San Luis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Luis, April typically has an average temperature of 17°C (63°F), with highs reaching up to 31°C (88°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec757268635548485359647074
Data source: Temperature data for San Luis generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in San Luis

In San Luis in April, the total precipitation amount is 72 mm (2.8 in) over the course of 6 days.

April Precipitation Trends in San Luis

The chart displays monthly precipitation patterns in San 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 San Luis, April typically receives around 72 mm (2.8 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec9279607232139421327163
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in San Luis

In San Luis in April humidity is 63%. With average temperature 17°C (63°F), this humidity feels like a comfortable embrace, making it ideal for leisurely strolls and sightseeing without feeling overly sticky or uncomfortable for travelers.

April Average Humidity in San Luis

This chart illustrates the average monthly humidity levels in San 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 San Luis is approximately 63%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec40%48%53%63%67%61%55%48%45%43%45%40%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in San Luis

In San Luis in April, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in San Luis.

Maximum UV Index Levels in San Luis for April

The chart shows the monthly maximum UV Index (UVI) for San 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 San Luis typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151311854468111415
Data source: San 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 San Luis Compares to Other Months

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

This table compares monthly weather conditions in San Luis, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (75°F)92 mm (3.6 inches)40%extreme
February Weather22°C (72°F)79 mm (3.1 inches)48%extreme
March Weather20°C (69°F)60 mm (2.4 inches)53%extreme
April Weather17°C (63°F)72 mm (2.8 inches)63%very high
May Weather13°C (55°F)32 mm (1.2 inches)67%moderate
June Weather9°C (49°F)13 mm (0.5 inches)61%moderate
July Weather9°C (48°F)9 mm (0.4 inches)55%moderate
August Weather12°C (54°F)4 mm (0.2 inches)48%high
September Weather15°C (59°F)21 mm (0.8 inches)45%very high
October Weather18°C (64°F)32 mm (1.2 inches)43%extreme
November Weather21°C (70°F)71 mm (2.8 inches)45%extreme
December Weather23°C (74°F)63 mm (2.5 inches)40%extreme

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