Last updated: August 26, 2025
In December, the average temperature in Colonia 28 de Mayo (Santa Rosa), Mexico hovers around 12°C (54°F), offering a mild climate. Temperatures can dip as low as -4°C (25°F) at night, while daytime highs can reach up to 25°C (77°F). Expect a precipitation amount of 18 mm (0.7 in) spread across 5 days, and enjoy the refreshingly high average humidity of 91% that adds to the area's unique atmosphere.
In December in Colonia 28 de Mayo (Santa Rosa), the average temperature is 12°C (54°F). Maximum temperatures can reach 25°C (77°F), while minimums can drop as low as -4°C (25°F). Be prepared for a diverse range of weather conditions when traveling during this time.
In Colonia 28 de Mayo (Santa Rosa) in December, the precipitation amount is 18 mm (0.7 in) spread over a duration of 5 days.
In Colonia 28 de Mayo (Santa Rosa) in December, humidity is 91%. With an average temperature of 12°C (54°F), this humidity feels like a damp blanket wrapping around you, making even short walks feel heavy and sluggish, which can be quite challenging for travelers looking to explore the area comfortably.
In Colonia 28 de Mayo (Santa Rosa) in December, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Colonia 28 de Mayo (Santa Rosa).
UV Risk Categories
Weather in Colonia 28 de Mayo (Santa Rosa) varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Colonia 28 de Mayo (Santa Rosa), focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 11°C (53°F) | 26 mm (1.0 inches) | 88% | very high |
| February Weather | 13°C (57°F) | 25 mm (1.0 inches) | 86% | extreme |
| March Weather | 15°C (60°F) | 40 mm (1.6 inches) | 83% | extreme |
| April Weather | 17°C (63°F) | 57 mm (2.2 inches) | 80% | extreme |
| May Weather | 18°C (65°F) | 87 mm (3.4 inches) | 82% | extreme |
| June Weather | 17°C (64°F) | 187 mm (7.4 inches) | 79% | extreme |
| July Weather | 17°C (63°F) | 145 mm (5.7 inches) | 72% | extreme |
| August Weather | 17°C (63°F) | 189 mm (7.4 inches) | 74% | extreme |
| September Weather | 17°C (62°F) | 212 mm (8.3 inches) | 84% | extreme |
| October Weather | 15°C (60°F) | 163 mm (6.4 inches) | 92% | extreme |
| November Weather | 13°C (56°F) | 51 mm (2.0 inches) | 91% | very high |
| December Weather | 12°C (54°F) | 18 mm (0.7 inches) | 91% | very high |