Last updated: August 27, 2025
In March, the average temperature in San Antonio, Peru hovers around 6°C (43°F). Expect a chilly range, with minimums dipping to -2°C (29°F) and maximums reaching up to 15°C (60°F). The region experiences substantial rainfall, with an average precipitation of 274 mm (10.8 in) spread over 31 days. Brace yourself for a damp atmosphere with an average humidity of 90%!
In March, in San Antonio, the average temperature is 6°C (43°F). Maximums can reach 15°C (60°F) and minimums can be as low as -2°C (29°F). Be sure to pack layers to stay comfortable while exploring the diverse weather conditions!
In San Antonio in March, the precipitation amount is 274 mm (10.8 in) over the course of 31 days.
In San Antonio in March humidity is 90%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill clinging to your skin, making travel uncomfortable as you navigate through the thick, heavy air that seems to sap your energy.
In San Antonio in March, the maximum UV index reaches 24, which corresponds to the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take necessary precautions. For a detailed breakdown of the hourly UV index in San Antonio, you can refer to the hourly UV index here.
UV Risk Categories
Weather in San Antonio varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in San Antonio, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 6°C (43°F) | 250 mm (9.8 inches) | 89% | extreme |
| February Weather | 6°C (43°F) | 297 mm (11.7 inches) | 90% | extreme |
| March Weather | 6°C (43°F) | 274 mm (10.8 inches) | 90% | extreme |
| April Weather | 6°C (42°F) | 126 mm (5.0 inches) | 90% | extreme |
| May Weather | 5°C (41°F) | 46 mm (1.8 inches) | 84% | extreme |
| June Weather | 4°C (40°F) | 13 mm (0.5 inches) | 67% | extreme |
| July Weather | 4°C (40°F) | 15 mm (0.6 inches) | 53% | extreme |
| August Weather | 5°C (41°F) | 23 mm (0.9 inches) | 47% | extreme |
| September Weather | 6°C (43°F) | 78 mm (3.1 inches) | 53% | extreme |
| October Weather | 6°C (43°F) | 153 mm (6.0 inches) | 67% | extreme |
| November Weather | 7°C (44°F) | 185 mm (7.3 inches) | 75% | extreme |
| December Weather | 6°C (44°F) | 252 mm (9.9 inches) | 82% | extreme |