Last updated: August 22, 2025
In December, the average temperature in Puerto San Julian, Argentina hovers around 15°C (59°F), with minimums dipping to 6°C (43°F) and maximums soaring to 30°C (85°F). Expect a modest precipitation of 24 mm (1.0 in) spread over about 5 days, and the air will carry an average humidity level of 61%.
In December in Puerto San Julian, the average temperature is 15°C (59°F). Maximums can reach 30°C (85°F) and minimums can be as low as 6°C (43°F). This makes Puerto San Julian a pleasant destination for travelers seeking mild weather and a chance to enjoy outdoor activities.
In Puerto San Julian in December, the precipitation amount is 24 mm (1.0 in) spread over the course of 5 days.
In Puerto San Julian in December, humidity is 61%. With an average temperature of 15°C (59°F), this humidity feels like a gentle weight in the air, making it feel slightly warmer than it actually is, which can be quite refreshing for travelers.
In Puerto San Julian in December, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Puerto San Julian.
UV Risk Categories
Weather in Puerto San Julian varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Puerto San Julian, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 15°C (60°F) | 20 mm (0.8 inches) | 63% | extreme |
| February Weather | 16°C (61°F) | 18 mm (0.7 inches) | 67% | very high |
| March Weather | 14°C (57°F) | 23 mm (0.9 inches) | 67% | high |
| April Weather | 11°C (52°F) | 25 mm (1.0 inches) | 74% | moderate |
| May Weather | 8°C (46°F) | 23 mm (0.9 inches) | 78% | low |
| June Weather | 5°C (40°F) | 22 mm (0.9 inches) | 80% | low |
| July Weather | 4°C (40°F) | 18 mm (0.7 inches) | 81% | low |
| August Weather | 6°C (43°F) | 22 mm (0.8 inches) | 79% | moderate |
| September Weather | 8°C (46°F) | 16 mm (0.6 inches) | 73% | moderate |
| October Weather | 10°C (50°F) | 17 mm (0.7 inches) | 67% | very high |
| November Weather | 13°C (55°F) | 23 mm (0.9 inches) | 63% | extreme |
| December Weather | 15°C (59°F) | 24 mm (1.0 inches) | 61% | extreme |