Last updated: August 22, 2025
In September, the average temperature in General San Martin, Argentina is a comfortable 15°C (59°F). Expect a range from a brisk 3°C (38°F) to a warm 27°C (81°F). During this month, you'll encounter 86 mm (3.4 in) of precipitation spread over about 6 days, with an average humidity of 72% for a pleasantly refreshing atmosphere.
In September in General San Martin, the average temperature is 15°C (59°F), with a maximum that can reach 27°C (81°F) and a minimum as low as 3°C (38°F). This makes it an ideal time for travelers who enjoy mild weather and the opportunity to explore both warm and cooler conditions.
In General San Martin in September, the total precipitation amount is 86 mm (3.4 in) and occurs over the course of 6 days.
In General San Martin in September humidity is 72%. With an average temperature of 15°C (59°F), this humidity feels like a warm blanket wrapping around you, creating a sultry atmosphere that can make traveling a bit uncomfortable. The stickiness in the air can leave you feeling sluggish, so it’s advisable to stay hydrated and take breaks often while exploring.
In General San Martin in September, 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 General San Martin.
UV Risk Categories
Weather in General San Martin varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in General San Martin, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 25°C (77°F) | 59 mm (2.3 inches) | 50% | extreme |
| February Weather | 23°C (75°F) | 72 mm (2.9 inches) | 61% | extreme |
| March Weather | 22°C (71°F) | 77 mm (3.0 inches) | 66% | extreme |
| April Weather | 19°C (66°F) | 82 mm (3.2 inches) | 80% | high |
| May Weather | 15°C (59°F) | 80 mm (3.2 inches) | 85% | moderate |
| June Weather | 12°C (54°F) | 66 mm (2.6 inches) | 80% | moderate |
| July Weather | 11°C (52°F) | 75 mm (3.0 inches) | 69% | moderate |
| August Weather | 12°C (55°F) | 51 mm (2.0 inches) | 66% | high |
| September Weather | 15°C (59°F) | 86 mm (3.4 inches) | 72% | very high |
| October Weather | 17°C (63°F) | 103 mm (4.1 inches) | 63% | very high |
| November Weather | 21°C (69°F) | 77 mm (3.0 inches) | 59% | extreme |
| December Weather | 23°C (73°F) | 66 mm (2.6 inches) | 56% | extreme |