Last updated: August 28, 2025
In September, the average temperature in San Jacinto, Uruguay hovers around 14°C (57°F). Visitors can expect a range of temperatures, with a minimum dipping to 2°C (36°F) and a maximum reaching up to 29°C (85°F). During this month, precipitation is around 89 mm (3.5 in), typically falling over 8 days, and the average humidity sits at a comfortable 76%. Prepare for a mix of mild weather and occasional rainfall!
In September in San Jacinto, the average temperature is 14°C (57°F). Maximum temperatures can reach 29°C (85°F), while the minimum can dip as low as 2°C (36°F). Be sure to pack layers to enjoy the varied temperatures during your travels!
In San Jacinto in September, the precipitation amount is 89 mm (3.5 in) over a span of 8 days.
In San Jacinto in September humidity is 76%. With an average temperature of 14°C (57°F), this humidity feels like a warm blanket wrapped around you, creating a heavy atmosphere that can make outdoor activities feel sluggish and stifling, urging travelers to seek shade and refreshment more frequently.
In San Jacinto 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 San Jacinto.
UV Risk Categories
Weather in San Jacinto varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in San Jacinto, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 23°C (74°F) | 74 mm (2.9 inches) | 63% | extreme |
| February Weather | 22°C (73°F) | 93 mm (3.7 inches) | 69% | extreme |
| March Weather | 21°C (69°F) | 64 mm (2.5 inches) | 73% | extreme |
| April Weather | 18°C (65°F) | 76 mm (3.0 inches) | 79% | high |
| May Weather | 14°C (58°F) | 98 mm (3.9 inches) | 82% | moderate |
| June Weather | 12°C (54°F) | 111 mm (4.4 inches) | 80% | moderate |
| July Weather | 11°C (52°F) | 98 mm (3.8 inches) | 72% | moderate |
| August Weather | 12°C (54°F) | 91 mm (3.6 inches) | 72% | high |
| September Weather | 14°C (57°F) | 89 mm (3.5 inches) | 76% | very high |
| October Weather | 16°C (61°F) | 88 mm (3.5 inches) | 71% | extreme |
| November Weather | 19°C (67°F) | 63 mm (2.5 inches) | 68% | extreme |
| December Weather | 22°C (71°F) | 60 mm (2.4 inches) | 65% | extreme |