Last updated: August 22, 2025
In December, the average temperature in Antofagasta de la Sierra, Argentina hovers around 13°C (55°F). Expect a minimum of -2°C (28°F) and a maximum of 25°C (78°F), offering a broad range of conditions. During this month, you'll likely encounter about 24 mm (1.0 in) of precipitation over 3 days, with an average humidity of 40%.
In December in Antofagasta de la Sierra, the average temperature is 13°C (55°F), with maximums reaching 25°C (78°F) and minimums dipping as low as -2°C (28°F). This range makes it essential for travelers to pack layers to adapt to varying weather conditions throughout the day.
In Antofagasta de la Sierra in December, the total precipitation amount is 24 mm (1.0 in) accumulated over a period of 3 days.
In Antofagasta de la Sierra in December humidity is 40%. With an average temperature of 13°C (55°F), this humidity feels like a crisp, invigorating atmosphere that's perfect for exploring. The coolness combined with moderate humidity keeps the air refreshing, making it an ideal time for outdoor activities and sightseeing without feeling overheated.
In Antofagasta de la Sierra in December, the maximum UV index reaches 19, which corresponds to an extreme exposure category. With a time to burn of just 10 minutes, it’s essential to take precautions. For detailed information, you can check the hourly UV index in Antofagasta de la Sierra.
UV Risk Categories
Weather in Antofagasta de la Sierra varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Antofagasta de la Sierra, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 12°C (54°F) | 65 mm (2.6 inches) | 53% | extreme |
| February Weather | 12°C (54°F) | 37 mm (1.5 inches) | 60% | extreme |
| March Weather | 11°C (53°F) | 6 mm (0.2 inches) | 62% | extreme |
| April Weather | 8°C (47°F) | 2 mm (0.1 inches) | 55% | extreme |
| May Weather | 3°C (38°F) | 6 mm (0.3 inches) | 47% | very high |
| June Weather | 0°C (32°F) | 4 mm (0.2 inches) | 36% | very high |
| July Weather | 1°C (34°F) | 2 mm (0.1 inches) | 41% | very high |
| August Weather | 2°C (36°F) | 1 mm (0.1 inches) | 32% | very high |
| September Weather | 6°C (43°F) | 2 mm (0.1 inches) | 36% | extreme |
| October Weather | 9°C (48°F) | 0 mm (0.0 inches) | 36% | extreme |
| November Weather | 11°C (53°F) | 1 mm (0.0 inches) | 35% | extreme |
| December Weather | 13°C (55°F) | 24 mm (1.0 inches) | 40% | extreme |