Last updated: August 22, 2025
In Santa Maria, Argentina during December, the average temperature is a comfortable 16°C (61°F), with lows dipping to 6°C (42°F) and highs reaching a warm 31°C (88°F). Expect 36 mm (1.4 in) of precipitation spread over 9 days, contributing to an average humidity of 74%.
In December in Santa Maria, the average temperature is 16°C (61°F), with maximums reaching up to 31°C (88°F) and minimums dropping as low as 6°C (42°F). This diverse temperature range makes Santa Maria an ideal destination for travelers looking to enjoy a mix of warm and cooler weather.
In Santa Maria in December, the precipitation amount is 36 mm (1.4 in) over the course of 9 days.
In Santa Maria in December humidity is 74%. With an average temperature of 16°C (61°F), this humidity feels like a damp blanket wrapping around you, making traveling quite uncomfortable as the air feels thick and muggy, potentially leading to fatigue and a longing for a cool breeze.
In Santa Maria 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 Santa Maria.
UV Risk Categories
Weather in Santa Maria varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Santa Maria, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 17°C (63°F) | 57 mm (2.3 inches) | 79% | extreme |
| February Weather | 16°C (61°F) | 55 mm (2.2 inches) | 81% | extreme |
| March Weather | 15°C (59°F) | 30 mm (1.2 inches) | 83% | extreme |
| April Weather | 13°C (56°F) | 19 mm (0.8 inches) | 85% | extreme |
| May Weather | 10°C (51°F) | 3 mm (0.1 inches) | 75% | very high |
| June Weather | 8°C (47°F) | 3 mm (0.1 inches) | 62% | high |
| July Weather | 8°C (47°F) | 2 mm (0.1 inches) | 53% | very high |
| August Weather | 9°C (48°F) | 3 mm (0.1 inches) | 44% | very high |
| September Weather | 12°C (53°F) | 5 mm (0.2 inches) | 58% | extreme |
| October Weather | 14°C (58°F) | 10 mm (0.4 inches) | 54% | extreme |
| November Weather | 15°C (60°F) | 23 mm (0.9 inches) | 66% | extreme |
| December Weather | 16°C (61°F) | 36 mm (1.4 inches) | 74% | extreme |