Last updated: August 27, 2025
In Santa Maria, Mexico, the average temperature in December hovers around 13°C (55°F). Expect a cool range, with minimum temperatures dipping to -6°C (22°F) and highs reaching up to 29°C (84°F). The month brings an average precipitation of 15 mm (0.6 in) over just 1 day, accompanied by relatively high humidity at 87%.
In December in Santa Maria, the average temperature is 13°C (55°F). Maximums can reach 29°C (84°F), while minimums can drop as low as -6°C (22°F). Be sure to pack for both warm and chilly days during your travels!
In Santa Maria in December, the precipitation amount is 15 mm (0.6 in) over the course of 1 day.
In Santa Maria in December, humidity is 87%. With an average temperature of 13°C (55°F), this humidity feels like a heavy blanket wrapping around you, making travel sluggish and slightly uncomfortable, as each step seems to cling to the damp air.
In Santa Maria in December, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Santa Maria, you can refer to this 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 | 13°C (55°F) | 4 mm (0.1 inches) | 75% | high |
| February Weather | 16°C (61°F) | 3 mm (0.1 inches) | 65% | very high |
| March Weather | 20°C (68°F) | 5 mm (0.2 inches) | 58% | extreme |
| April Weather | 23°C (74°F) | 4 mm (0.1 inches) | 48% | extreme |
| May Weather | 27°C (81°F) | 5 mm (0.2 inches) | 48% | extreme |
| June Weather | 29°C (84°F) | 21 mm (0.8 inches) | 54% | extreme |
| July Weather | 27°C (80°F) | 48 mm (1.9 inches) | 72% | extreme |
| August Weather | 27°C (81°F) | 56 mm (2.2 inches) | 77% | extreme |
| September Weather | 24°C (75°F) | 84 mm (3.3 inches) | 86% | extreme |
| October Weather | 21°C (71°F) | 29 mm (1.1 inches) | 82% | very high |
| November Weather | 17°C (63°F) | 11 mm (0.4 inches) | 85% | very high |
| December Weather | 13°C (55°F) | 15 mm (0.6 inches) | 87% | high |