Last updated: August 22, 2025
In October, the average temperature in San Antonio, Argentina hovers around 18°C (64°F), offering a pleasant climate for outdoor activities. However, be prepared for fluctuations, as temperatures can dip to a cool 6°C (43°F) or soar up to a scorching 34°C (94°F). This month sees an average precipitation of 201 mm (7.9 in), spread across 21 days, and with an average humidity of 55%, it's advisable to pack accordingly!
In October in San Antonio, the average temperature is 18°C (64°F), with maximums reaching 34°C (94°F) and minimums dropping as low as 6°C (43°F). This variation in temperature makes it an ideal time for travelers to pack both light clothing for daytime excursions and warmer layers for cooler evenings.
In San Antonio in October, the precipitation amount is 201 mm (7.9 in) spread across 21 days.
In San Antonio in October, humidity is 55%. With an average temperature of 18°C (64°F), this humidity feels like a gentle embrace, making it comfortable for traveling yet slightly muggy, perfect for exploring the outdoors with a light jacket.
In San Antonio in October, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in San Antonio, you can check here.
UV Risk Categories
Weather in San Antonio varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in San Antonio, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 21°C (69°F) | 223 mm (8.8 inches) | 84% | extreme |
| February Weather | 19°C (67°F) | 237 mm (9.3 inches) | 87% | extreme |
| March Weather | 18°C (65°F) | 282 mm (11.1 inches) | 88% | extreme |
| April Weather | 16°C (61°F) | 267 mm (10.5 inches) | 85% | extreme |
| May Weather | 13°C (56°F) | 155 mm (6.1 inches) | 74% | very high |
| June Weather | 11°C (52°F) | 55 mm (2.2 inches) | 56% | high |
| July Weather | 11°C (52°F) | 45 mm (1.8 inches) | 47% | high |
| August Weather | 12°C (55°F) | 52 mm (2.1 inches) | 44% | very high |
| September Weather | 15°C (60°F) | 85 mm (3.4 inches) | 57% | extreme |
| October Weather | 18°C (64°F) | 201 mm (7.9 inches) | 55% | extreme |
| November Weather | 19°C (66°F) | 241 mm (9.5 inches) | 70% | extreme |
| December Weather | 20°C (68°F) | 272 mm (10.7 inches) | 77% | extreme |