Last updated: August 27, 2025
In May, the average temperature in Santa Rosa, Peru sits at a cool 5°C (41°F). Expect chilly days, with minimum temperatures dropping as low as -7°C (20°F), while the mercury can rise to a maximum of 14°C (58°F). During this month, 46 mm (1.8 in) of precipitation is anticipated over approximately 15 days, contributing to an average humidity level of 84%. Stay warm and prepared!
In May in Santa Rosa, the average temperature is 5°C (41°F). Maximums can reach 14°C (58°F), while minimums can drop as low as -7°C (20°F). Travelers should prepare for a mix of chilly and mild weather during this time, making warm clothing essential for outdoor activities.
In Santa Rosa in May, the total precipitation amount is 46 mm (1.8 in), recorded over a span of 15 days.
In Santa Rosa in May humidity is 84%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable as you navigate through the cold, heavy air that clings to your skin.
In 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 Santa Rosa, you can check here.
UV Risk Categories
Weather in Santa Rosa varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Santa Rosa, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 6°C (43°F) | 259 mm (10.2 inches) | 89% | extreme |
| February Weather | 6°C (43°F) | 304 mm (12.0 inches) | 90% | extreme |
| March Weather | 6°C (43°F) | 284 mm (11.2 inches) | 90% | extreme |
| April Weather | 6°C (42°F) | 127 mm (5.0 inches) | 90% | extreme |
| May Weather | 5°C (41°F) | 46 mm (1.8 inches) | 84% | extreme |
| June Weather | 5°C (41°F) | 13 mm (0.5 inches) | 67% | extreme |
| July Weather | 5°C (41°F) | 16 mm (0.6 inches) | 53% | extreme |
| August Weather | 5°C (42°F) | 25 mm (1.0 inches) | 47% | extreme |
| September Weather | 6°C (43°F) | 83 mm (3.3 inches) | 53% | extreme |
| October Weather | 6°C (43°F) | 162 mm (6.4 inches) | 67% | extreme |
| November Weather | 7°C (45°F) | 184 mm (7.3 inches) | 75% | extreme |
| December Weather | 7°C (44°F) | 245 mm (9.7 inches) | 82% | extreme |