Last updated: June 24, 2025
In October, the average temperature in San Luis, United States hovers around 7°C (45°F), with lows dipping to a chilly -18°C (0°F) and maximums reaching a comfortable 24°C (75°F). Expect around 27 mm (1.1 in) of precipitation over 5 days, and an average humidity level of 78%, creating a unique, crisp atmosphere for the season.
In October, in San Luis, the average temperature is 7°C (45°F). Maximums can reach 24°C (75°F), while minimums can drop as low as -18°C (0°F). This wide temperature range suggests that travelers should be prepared for both warm days and chilly nights.
In San Luis in October, the precipitation amount is 27 mm (1.1 in) over a period of 5 days.
In San Luis in October, humidity is 78%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration less enjoyable and necessitating cozy, layered clothing for comfort while traveling.
In San Luis in October, 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.
UV Risk Categories
Weather in San Luis varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in San Luis, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (23°F) | 23 mm (0.9 inches) | 84% | moderate |
| February Weather | -4°C (25°F) | 25 mm (1.0 inches) | 84% | high |
| March Weather | 1°C (34°F) | 37 mm (1.5 inches) | 74% | very high |
| April Weather | 5°C (42°F) | 35 mm (1.4 inches) | 68% | extreme |
| May Weather | 10°C (51°F) | 42 mm (1.6 inches) | 62% | extreme |
| June Weather | 16°C (62°F) | 28 mm (1.1 inches) | 55% | extreme |
| July Weather | 18°C (65°F) | 71 mm (2.8 inches) | 54% | extreme |
| August Weather | 17°C (63°F) | 45 mm (1.8 inches) | 61% | extreme |
| September Weather | 14°C (57°F) | 31 mm (1.2 inches) | 70% | extreme |
| October Weather | 7°C (45°F) | 27 mm (1.1 inches) | 78% | very high |
| November Weather | 2°C (35°F) | 17 mm (0.7 inches) | 81% | moderate |
| December Weather | -4°C (25°F) | 23 mm (0.9 inches) | 85% | moderate |