Last updated: August 22, 2025
In September, the average temperature in Santa Maria, Argentina hovers around 20°C (68°F). Expect a minimum chill of 6°C (43°F) and a scorching maximum of 35°C (96°F). With an average humidity of 59%, you’ll want to prepare for the 106 mm (4.2 in) of precipitation spread over 10 days.
In September in Santa Maria, the average temperature is 20°C (68°F), with maximums reaching 35°C (96°F) and minimums as low as 6°C (43°F). This makes Santa Maria an ideal destination for travelers seeking mild weather and enjoyable outdoor activities.
In Santa Maria in September, the precipitation amount is 106 mm (4.2 in) over a span of 10 days.
In Santa Maria in September, humidity is 59%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, creating a slightly muggy atmosphere that can be a bit stifling for outdoor activities, yet refreshing during cooler, shaded moments, making it ideal for leisurely sightseeing and exploration in the early mornings or late afternoons.
In Santa Maria in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Santa Maria.
UV Risk Categories
Weather in Santa Maria varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Santa Maria, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 27°C (80°F) | 171 mm (6.8 inches) | 70% | extreme |
| February Weather | 26°C (78°F) | 99 mm (3.9 inches) | 66% | extreme |
| March Weather | 24°C (76°F) | 137 mm (5.4 inches) | 73% | extreme |
| April Weather | 21°C (71°F) | 115 mm (4.5 inches) | 81% | very high |
| May Weather | 18°C (64°F) | 188 mm (7.4 inches) | 82% | high |
| June Weather | 16°C (62°F) | 105 mm (4.1 inches) | 77% | moderate |
| July Weather | 15°C (60°F) | 99 mm (3.9 inches) | 69% | moderate |
| August Weather | 17°C (63°F) | 83 mm (3.3 inches) | 51% | high |
| September Weather | 20°C (68°F) | 106 mm (4.2 inches) | 59% | very high |
| October Weather | 22°C (72°F) | 149 mm (5.9 inches) | 63% | extreme |
| November Weather | 24°C (75°F) | 148 mm (5.8 inches) | 66% | extreme |
| December Weather | 26°C (79°F) | 78 mm (3.1 inches) | 81% | extreme |