Last updated: August 22, 2025
In January, the average temperature in San Justo, Argentina is a pleasant 24°C (76°F), but be prepared for temperature fluctuations, as it can dip to a cool 11°C (53°F) and soar up to a sweltering 41°C (106°F). Expect some rain, with an average precipitation of 65 mm (2.6 in) over 6 days, while the average humidity hovers around 50%. Whether you're soaking up the sun or enjoying a refreshing downpour, this month promises diverse weather experiences!
In January in San Justo, the average temperature is 24°C (76°F). The maximum can reach 41°C (106°F), while the minimum can drop as low as 11°C (53°F). This variation makes it essential for travelers to pack both light clothing for the heat and warmer layers for cooler evenings.
In San Justo, in January, the precipitation amount is 65 mm (2.6 in) over a period of 6 days.
In San Justo in January, humidity is 50%. With an average temperature of 24°C (76°F), this humidity feels like a warm embrace, making it quite comfortable for traveling, though you might want to carry a light layer to stay cozy during breezy moments.
In San Justo in January, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in San Justo, you can check here.
UV Risk Categories
Weather in San Justo varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in San Justo, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 24°C (76°F) | 65 mm (2.6 inches) | 50% | extreme |
| February Weather | 23°C (74°F) | 66 mm (2.6 inches) | 61% | extreme |
| March Weather | 21°C (70°F) | 73 mm (2.9 inches) | 66% | extreme |
| April Weather | 18°C (65°F) | 80 mm (3.2 inches) | 80% | high |
| May Weather | 14°C (58°F) | 67 mm (2.7 inches) | 85% | moderate |
| June Weather | 11°C (53°F) | 56 mm (2.2 inches) | 80% | moderate |
| July Weather | 10°C (51°F) | 55 mm (2.2 inches) | 69% | moderate |
| August Weather | 12°C (54°F) | 46 mm (1.8 inches) | 66% | high |
| September Weather | 14°C (58°F) | 75 mm (3.0 inches) | 72% | very high |
| October Weather | 17°C (62°F) | 94 mm (3.7 inches) | 63% | very high |
| November Weather | 20°C (69°F) | 71 mm (2.8 inches) | 59% | extreme |
| December Weather | 23°C (73°F) | 67 mm (2.6 inches) | 56% | extreme |