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July Weather in San Luis, United States

Last updated: June 24, 2025

In July, the average temperature in San Luis, United States soars to a sizzling 35°C (96°F). Expect temperatures to range from a minimum of 23°C (73°F) to a blistering maximum of 48°C (118°F). With just 6 mm (0.2 in) of precipitation over 2 days, and an average humidity of only 28%, it's a dry heat that defines the season.

July Temperature in San Luis

In July in San Luis, the average temperature is 35°C (96°F), with maximums reaching 48°C (118°F) and minimums dropping to as low as 23°C (73°F). It's important to stay hydrated and plan your activities for the cooler parts of the day while exploring this warm destination.

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 35°C (96°F), with highs reaching up to 48°C (118°F) and lows dropping to around 23°C (73°F).
JanFebMarAprMayJunJulAugSepOctNovDec596167768190959689776858
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 6 mm (0.2 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 6 mm (0.2 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec915193106620889
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 28%. With an average temperature of 35°C (96°F), this humidity feels like a warm embrace, making travel invigorating yet slightly challenging as it adds a touch of heaviness to the air, urging you to stay hydrated 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 28%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec73%76%65%50%33%28%28%33%50%61%70%78%
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 is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in San Luis.

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 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469101112121110854
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 Weather15°C (59°F)9 mm (0.4 inches)73%moderate
February Weather16°C (61°F)15 mm (0.6 inches)76%high
March Weather20°C (68°F)19 mm (0.7 inches)65%very high
April Weather24°C (76°F)3 mm (0.1 inches)50%very high
May Weather27°C (81°F)1 mm (0.0 inches)33%extreme
June Weather32°C (90°F)0 mm (0.0 inches)28%extreme
July Weather35°C (96°F)6 mm (0.2 inches)28%extreme
August Weather35°C (96°F)6 mm (0.2 inches)33%extreme
September Weather32°C (89°F)20 mm (0.8 inches)50%very high
October Weather25°C (78°F)8 mm (0.3 inches)61%very high
November Weather20°C (68°F)8 mm (0.3 inches)70%moderate
December Weather14°C (58°F)9 mm (0.4 inches)78%moderate

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