Last updated: August 22, 2025
In San Luis, Argentina, the average temperature in August hovers around 12°C (54°F). Expect a minimum drop to -5°C (23°F) and a possible rise to a balmy 30°C (86°F). With an average humidity of 48% and a mere 4 mm (0.2 in) of precipitation over 0 days, it’s a great time to enjoy the outdoor weather!
In August in San Luis, the average temperature is 12°C (54°F). Maximums can reach 30°C (86°F), while minimums can drop as low as -5°C (23°F). This temperature range makes San Luis an ideal destination for travelers seeking a mix of warm days and cool nights.
In San Luis in August, the precipitation amount is 4 mm (0.2 in) over the course of 0 days.
In San Luis in August, humidity is 48%. With an average temperature of 12°C (54°F), this humidity feels like a cool breeze, making it quite comfortable for traveling. You can explore the sights without feeling overheated, allowing you to enjoy your adventure to the fullest.
In San Luis in August, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in San Luis, you can refer to this Hourly UV Index in San Luis.
UV Risk Categories
Weather in San Luis varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in San Luis, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 24°C (75°F) | 92 mm (3.6 inches) | 40% | extreme |
| February Weather | 22°C (72°F) | 79 mm (3.1 inches) | 48% | extreme |
| March Weather | 20°C (69°F) | 60 mm (2.4 inches) | 53% | extreme |
| April Weather | 17°C (63°F) | 72 mm (2.8 inches) | 63% | very high |
| May Weather | 13°C (55°F) | 32 mm (1.2 inches) | 67% | moderate |
| June Weather | 9°C (49°F) | 13 mm (0.5 inches) | 61% | moderate |
| July Weather | 9°C (48°F) | 9 mm (0.4 inches) | 55% | moderate |
| August Weather | 12°C (54°F) | 4 mm (0.2 inches) | 48% | high |
| September Weather | 15°C (59°F) | 21 mm (0.8 inches) | 45% | very high |
| October Weather | 18°C (64°F) | 32 mm (1.2 inches) | 43% | extreme |
| November Weather | 21°C (70°F) | 71 mm (2.8 inches) | 45% | extreme |
| December Weather | 23°C (74°F) | 63 mm (2.5 inches) | 40% | extreme |