Last updated: August 26, 2025
In October, the average temperature in San Antonio, Mexico hovers around 27°C (81°F), creating a warm and inviting atmosphere. Temperatures can dip to a minimum of 23°C (74°F) and peak at a maximum of 31°C (89°F). Expect a fair share of rain, with 212 mm (8.4 in) of precipitation spread over 21 days, contributing to the region's lush greenery. Humidity averages a cozy 79%, making for a tropical feel throughout the month.
In October in San Antonio, the average temperature is 27°C (81°F). Maximums can reach 31°C (89°F), while minimums can drop to as low as 23°C (74°F). This mild and warm climate makes San Antonio an ideal destination for travelers seeking pleasant weather during this time of year.
In San Antonio in October, the total precipitation amount is 212 mm (8.4 in) over the course of 21 days.
In San Antonio in October, humidity is 79%. With an average temperature of 27°C (81°F), this humidity feels like a warm and sticky embrace, making travel both challenging and invigorating as the air clings to your skin, urging you to seek shade or a refreshing drink.
In San Antonio in October, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in San Antonio.
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 | 27°C (80°F) | 2 mm (0.1 inches) | 65% | very high |
| February Weather | 26°C (80°F) | 1 mm (0.0 inches) | 61% | extreme |
| March Weather | 27°C (80°F) | 0 mm (0.0 inches) | 59% | extreme |
| April Weather | 27°C (81°F) | 1 mm (0.0 inches) | 62% | extreme |
| May Weather | 28°C (82°F) | 13 mm (0.5 inches) | 73% | extreme |
| June Weather | 28°C (82°F) | 235 mm (9.3 inches) | 78% | extreme |
| July Weather | 28°C (83°F) | 95 mm (3.8 inches) | 79% | extreme |
| August Weather | 28°C (82°F) | 284 mm (11.2 inches) | 82% | extreme |
| September Weather | 27°C (81°F) | 299 mm (11.8 inches) | 82% | extreme |
| October Weather | 27°C (81°F) | 212 mm (8.4 inches) | 79% | extreme |
| November Weather | 27°C (81°F) | 37 mm (1.5 inches) | 72% | very high |
| December Weather | 27°C (80°F) | 17 mm (0.7 inches) | 70% | very high |