Last updated: August 22, 2025
In December, the average temperature in San Lorenzo, Argentina is a warm 26°C (79°F). You'll experience a range from a cool 12°C (54°F) to a scorching 40°C (104°F). Expect 90 mm (3.5 in) of precipitation over 6 days, contributing to an average humidity of 75%. Stay prepared for varying weather conditions!
In December in San Lorenzo, the average temperature is 26°C (79°F). Maximums can reach 40°C (104°F), and minimums can be as low as 12°C (54°F). Be sure to pack appropriately for varying temperatures during your travels.
In San Lorenzo in December, the total precipitation amount reaches 90 mm (3.5 in) over the course of 6 days.
In San Lorenzo in December, humidity is 75%. With an average temperature of 26°C (79°F), this humidity feels like a warm blanket wrapped around you, making traveling a sticky experience where every step requires extra effort and frequent breaks to cool off.
In San Lorenzo 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 San Lorenzo, you can check here.
UV Risk Categories
Weather in San Lorenzo varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Lorenzo, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 27°C (82°F) | 166 mm (6.5 inches) | 66% | extreme |
| February Weather | 26°C (80°F) | 68 mm (2.7 inches) | 61% | extreme |
| March Weather | 24°C (76°F) | 131 mm (5.2 inches) | 71% | extreme |
| April Weather | 21°C (71°F) | 136 mm (5.4 inches) | 81% | very high |
| May Weather | 18°C (64°F) | 125 mm (4.9 inches) | 84% | high |
| June Weather | 16°C (60°F) | 61 mm (2.4 inches) | 76% | moderate |
| July Weather | 15°C (59°F) | 39 mm (1.5 inches) | 64% | moderate |
| August Weather | 17°C (63°F) | 42 mm (1.7 inches) | 46% | high |
| September Weather | 20°C (68°F) | 98 mm (3.9 inches) | 55% | very high |
| October Weather | 22°C (72°F) | 115 mm (4.5 inches) | 57% | extreme |
| November Weather | 24°C (76°F) | 142 mm (5.6 inches) | 59% | extreme |
| December Weather | 26°C (79°F) | 90 mm (3.5 inches) | 75% | extreme |