Last updated: August 22, 2025
In May, the average temperature in Santa Maria, Brazil hovers around 16°C (61°F). Expect a minimum of 4°C (40°F) and a maximum reaching 33°C (91°F). During this month, precipitation averages 200 mm (7.9 in) over 11 days, contributing to an average humidity of 87%. Whether you’re planning outdoor activities or cozy indoor time, be prepared for varying conditions!
In May in Santa Maria, the average temperature is 16°C (61°F). Maximum temperatures can reach 33°C (91°F) while minimum temperatures can drop as low as 4°C (40°F). Be sure to pack layers to stay comfortable throughout the day!
In Santa Maria in May, the precipitation amount is 200 mm (7.9 in) over the course of 11 days.
In Santa Maria in May humidity is 87%. With an average temperature of 16°C (61°F), this humidity feels like a heavy blanket wrapping around you, making outdoor exploration sticky and uncomfortable, while also adding a thickness to the air that can sap your energy and enthusiasm for sightseeing.
In Santa Maria in May, 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 May’s weather to other months in Santa Maria, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 25°C (77°F) | 143 mm (5.6 inches) | 74% | extreme |
| February Weather | 24°C (75°F) | 107 mm (4.2 inches) | 73% | extreme |
| March Weather | 23°C (73°F) | 116 mm (4.6 inches) | 73% | extreme |
| April Weather | 20°C (69°F) | 79 mm (3.1 inches) | 81% | very high |
| May Weather | 16°C (61°F) | 200 mm (7.9 inches) | 87% | high |
| June Weather | 15°C (59°F) | 120 mm (4.7 inches) | 84% | moderate |
| July Weather | 14°C (57°F) | 106 mm (4.2 inches) | 80% | moderate |
| August Weather | 15°C (60°F) | 103 mm (4.1 inches) | 71% | high |
| September Weather | 17°C (64°F) | 148 mm (5.8 inches) | 74% | very high |
| October Weather | 19°C (67°F) | 168 mm (6.6 inches) | 77% | extreme |
| November Weather | 22°C (71°F) | 137 mm (5.4 inches) | 77% | extreme |
| December Weather | 24°C (76°F) | 72 mm (2.8 inches) | 85% | extreme |