Last updated: August 22, 2025
In December, the average temperature in San Javier, Argentina is a pleasant 25°C (77°F). Expect a range where the minimum can dip to 11°C (52°F) and the maximum may soar to 39°C (102°F). With an average precipitation of 76 mm (3.0 in) spread over 6 days, you'll want to be prepared for the occasional shower. Humidity hovers around 57%, creating a moderately comfortable atmosphere.
In December in San Javier, the average temperature is 25°C (77°F), with maximums often reaching 39°C (102°F) and minimums dropping to as low as 11°C (52°F). This variability makes it essential for travelers to pack for both warm days and cooler evenings.
In San Javier in December, the total precipitation amount reaches 76 mm (3.0 in) over the course of 6 days.
In San Javier in December, humidity is 57%. With an average temperature of 25°C (77°F), this humidity feels like a warm embrace, making it perfect for leisurely strolls and outdoor adventures, though it's advisable to stay hydrated and take breaks in the shade.
In San Javier in December, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in San Javier.
UV Risk Categories
Weather in San Javier varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Javier, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 26°C (79°F) | 114 mm (4.5 inches) | 51% | extreme |
| February Weather | 25°C (77°F) | 109 mm (4.3 inches) | 57% | extreme |
| March Weather | 23°C (73°F) | 106 mm (4.2 inches) | 65% | extreme |
| April Weather | 20°C (69°F) | 84 mm (3.3 inches) | 76% | very high |
| May Weather | 16°C (61°F) | 144 mm (5.7 inches) | 83% | high |
| June Weather | 13°C (56°F) | 77 mm (3.1 inches) | 78% | moderate |
| July Weather | 13°C (55°F) | 48 mm (1.9 inches) | 58% | moderate |
| August Weather | 14°C (58°F) | 79 mm (3.1 inches) | 54% | high |
| September Weather | 17°C (63°F) | 82 mm (3.2 inches) | 59% | very high |
| October Weather | 20°C (68°F) | 106 mm (4.2 inches) | 50% | extreme |
| November Weather | 23°C (73°F) | 84 mm (3.3 inches) | 53% | extreme |
| December Weather | 25°C (77°F) | 76 mm (3.0 inches) | 57% | extreme |