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July Weather in San Luis, Argentina

Last updated: August 22, 2025

In July, the average temperature in San Luis, Argentina is a cool 9°C (48°F), with variations ranging from a chilly -5°C (24°F) to a warm 25°C (77°F). During this month, you can expect about 9 mm (0.4 in) of precipitation spread over 2 days, while the average humidity hovers around 55%. Perfect for a brisk stroll under potentially cloudy skies!

July Temperature in San Luis

In July in San Luis, the average temperature is 9°C (48°F), with maximums reaching 25°C (77°F) and minimums dropping to as low as -5°C (24°F). This makes it an ideal time to pack layers for your trip, ensuring you're prepared for both mild and chilly weather conditions.

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

The chart illustrates July 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, July typically has an average temperature of 9°C (48°F), with highs reaching up to 25°C (77°F) and lows dropping to around -5°C (24°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.

July Precipitation in San Luis

In San Luis in July, the precipitation amount is 9 mm (0.4 in) over the course of 2 days.

July Precipitation Trends in San Luis

The chart displays monthly precipitation patterns in San Luis, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In San Luis, July typically receives around 9 mm (0.4 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec9279607232139421327163
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in San Luis

In San Luis in July, humidity is 55%. With an average temperature of 9°C (48°F), this humidity feels like a chilly embrace, making travel invigorating but requiring layered clothing to stay comfortable while exploring.

July Average Humidity in San Luis

This chart illustrates the average monthly humidity levels in San Luis, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in San Luis is approximately 55%, 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 July generated using information from the Copernicus Climate Change Service.

July UV Index in San Luis

In San Luis in July, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in San Luis for better planning.

Maximum UV Index Levels in San Luis for July

The chart shows the monthly maximum UV Index (UVI) for San Luis in July, 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 July, the maximum UV index in San Luis typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151311854468111415
Data source: San Luis July 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 July 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 July’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 July’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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