Last updated: August 22, 2025
In December, the average temperature in San Carlos, Argentina hovers around 17°C (64°F). Expect a range from a chilly 7°C (45°F) to a warm 34°C (93°F). During this month, the area receives approximately 84 mm (3.3 in) of precipitation over 15 days, contributing to an average humidity level of 74%. Whether you're planning outdoor activities or simply enjoying the local atmosphere, be prepared for a mix of weather!
In December in San Carlos, the average temperature is 17°C (64°F). Maximum temperatures can reach 34°C (93°F), while minimums can drop as low as 7°C (45°F). This makes it an ideal time for travelers looking for mild weather with the possibility of warm days and cooler evenings.
In San Carlos in December, the total precipitation amount is 84 mm (3.3 in) recorded over a span of 15 days.
In San Carlos in December, humidity is 74%. With an average temperature of 17°C (64°F), this humidity feels like a warm, sticky embrace that can make outdoor activities somewhat uncomfortable, especially for travelers who enjoy exploring. It's advisable to stay hydrated and take frequent breaks in the shade to fully enjoy your adventures.
In San Carlos in December, the maximum UV index is 18, which corresponds to an extreme exposure category. This means that the time to burn is just 10 minutes. For more detailed information, you can check the hourly UV index in San Carlos.
UV Risk Categories
Weather in San Carlos varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Carlos, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 18°C (65°F) | 103 mm (4.1 inches) | 79% | extreme |
| February Weather | 17°C (62°F) | 117 mm (4.6 inches) | 81% | extreme |
| March Weather | 16°C (61°F) | 71 mm (2.8 inches) | 83% | extreme |
| April Weather | 15°C (58°F) | 29 mm (1.2 inches) | 85% | extreme |
| May Weather | 12°C (53°F) | 8 mm (0.3 inches) | 75% | very high |
| June Weather | 9°C (49°F) | 5 mm (0.2 inches) | 62% | high |
| July Weather | 9°C (48°F) | 4 mm (0.1 inches) | 53% | very high |
| August Weather | 10°C (51°F) | 4 mm (0.2 inches) | 44% | very high |
| September Weather | 13°C (55°F) | 8 mm (0.3 inches) | 58% | extreme |
| October Weather | 15°C (60°F) | 18 mm (0.7 inches) | 54% | extreme |
| November Weather | 17°C (63°F) | 55 mm (2.2 inches) | 66% | extreme |
| December Weather | 17°C (64°F) | 84 mm (3.3 inches) | 74% | extreme |