Last updated: August 22, 2025
In April, the average temperature in San Antonio, Chile hovers around 14°C (57°F), with a comfortable range from a minimum of 7°C (44°F) to a pleasant maximum of 23°C (74°F). Expect a light sprinkle of 9 mm (0.4 in) of precipitation over 1 day, and enjoy a moderate average humidity of 52%. Perfect weather for exploring!
In April in San Antonio, the average temperature is 14°C (57°F). The maximum can reach 23°C (74°F), and the minimum can be as low as 7°C (44°F). This makes for a pleasant time to explore San Antonio, so pack accordingly for mild weather and enjoy your travels!
In San Antonio in April, the precipitation amount is 9 mm (0.4 in) over the course of 1 day.
In San Antonio in April humidity is 52%. With an average temperature of 14°C (57°F), this humidity feels like a refreshing breeze that keeps you comfortable while exploring the sights, allowing for enjoyable outdoor activities without feeling overly sticky or heavy.
In San Antonio in April, 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 Antonio.
UV Risk Categories
Weather in San Antonio varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in San Antonio, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 17°C (62°F) | 6 mm (0.2 inches) | 41% | extreme |
| February Weather | 17°C (62°F) | 3 mm (0.1 inches) | 41% | extreme |
| March Weather | 16°C (60°F) | 3 mm (0.1 inches) | 46% | extreme |
| April Weather | 14°C (57°F) | 9 mm (0.4 inches) | 52% | very high |
| May Weather | 12°C (54°F) | 43 mm (1.7 inches) | 64% | moderate |
| June Weather | 11°C (51°F) | 107 mm (4.2 inches) | 71% | moderate |
| July Weather | 10°C (50°F) | 47 mm (1.9 inches) | 75% | moderate |
| August Weather | 10°C (51°F) | 38 mm (1.5 inches) | 73% | high |
| September Weather | 11°C (53°F) | 16 mm (0.6 inches) | 56% | very high |
| October Weather | 13°C (55°F) | 14 mm (0.6 inches) | 61% | extreme |
| November Weather | 15°C (59°F) | 3 mm (0.1 inches) | 52% | extreme |
| December Weather | 16°C (61°F) | 1 mm (0.0 inches) | 39% | extreme |