Last updated: August 26, 2025
In May, the average temperature in Colonia 28 de Mayo (Santa Rosa), Mexico hovers around 18°C (65°F), with a comfortable range from a minimum of 7°C (45°F) to a maximum of 31°C (88°F). Expect 87 mm (3.4 in) of precipitation spread over 17 days, contributing to an average humidity level of 82%. Whether you're exploring or relaxing, be prepared for a mix of warmth and wetness!
In May in Colonia 28 de Mayo (Santa Rosa), the average temperature is 18°C (65°F). The maximum can reach 31°C (88°F), and the minimum can be as low as 7°C (45°F). This climate makes Colonia 28 de Mayo (Santa Rosa) an ideal destination for travelers seeking mild weather and a variety of outdoor activities.
In Colonia 28 de Mayo (Santa Rosa) in May, the precipitation amount is 87 mm (3.4 in) over the course of 17 days.
In Colonia 28 de Mayo (Santa Rosa) in May, humidity is 82%. With an average temperature of 18°C (65°F), this humidity feels like a warm, sticky embrace that can quickly leave travelers feeling fatigued and in need of frequent breaks to stay refreshed and hydrated.
In Colonia 28 de Mayo (Santa Rosa) in May, 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 Colonia 28 de Mayo (Santa Rosa), you can check here.
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 May’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 |