Last updated: August 22, 2025
In December, the average temperature in General San Martin, Argentina hovers around 22°C (72°F), making it a pleasant time to visit. However, temperatures can fluctuate, reaching a minimum of 7°C (45°F) and soaring up to a maximum of 37°C (100°F). During this month, expect about 59 mm (2.3 in) of precipitation spread over 6 days, while the average humidity sits comfortably at 41%.
In December in General San Martin, the average temperature is 22°C (72°F). Maximums can reach 37°C (100°F) and minimums can be as low as 7°C (45°F). This makes it a perfect time for travelers to enjoy a variety of outdoor activities while being prepared for both warm and cool weather.
In General San Martin in December, the precipitation amount is 59 mm (2.3 in) over the course of 6 days.
In General San Martin in December humidity is 41%. With an average temperature of 22°C (72°F), this humidity feels like a pleasant warmth that enhances the overall travel experience, making it comfortable for exploring outdoor attractions without feeling too sticky or oppressive.
In General San Martin in December, 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 General San Martin, you can check here.
UV Risk Categories
Weather in General San Martin varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in General San Martin, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 24°C (75°F) | 31 mm (1.2 inches) | 46% | extreme |
| February Weather | 22°C (72°F) | 38 mm (1.5 inches) | 52% | extreme |
| March Weather | 19°C (67°F) | 70 mm (2.7 inches) | 61% | very high |
| April Weather | 16°C (61°F) | 70 mm (2.8 inches) | 70% | high |
| May Weather | 11°C (52°F) | 41 mm (1.6 inches) | 72% | moderate |
| June Weather | 8°C (47°F) | 34 mm (1.3 inches) | 68% | moderate |
| July Weather | 7°C (46°F) | 29 mm (1.1 inches) | 66% | moderate |
| August Weather | 10°C (49°F) | 17 mm (0.7 inches) | 60% | moderate |
| September Weather | 12°C (54°F) | 51 mm (2.0 inches) | 59% | high |
| October Weather | 15°C (59°F) | 42 mm (1.6 inches) | 49% | very high |
| November Weather | 19°C (66°F) | 78 mm (3.1 inches) | 45% | extreme |
| December Weather | 22°C (72°F) | 59 mm (2.3 inches) | 41% | extreme |