Last updated: August 27, 2025
In May, the average temperature in Santa Ana, Peru hovers around 2°C (36°F), with a chill that can dip to a minimum of -9°C (16°F) and rise to a maximum of 11°C (52°F). Prepare for a splash of rain, as 81 mm (3.2 in) of precipitation is expected over 20 days. Don't forget your layers, as the average humidity sits comfortably at 83%!
In May in Santa Ana, the average temperature is 2°C (36°F). The maximum can reach 11°C (52°F), and the minimum can be as low as -9°C (16°F). Be sure to pack warm layers and prepare for chilly weather if you plan to visit during this time.
In Santa Ana in May, the precipitation amount is 81 mm (3.2 in), spread over 20 days.
In Santa Ana in May, humidity is 83%. With an average temperature of 2°C (36°F), this humidity feels like a cold, damp blanket, making travel uncomfortable as the chill seeps into your bones and the moisture clings to your clothing, forcing you to constantly seek warmth and shelter.
In Santa Ana in May, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Santa Ana.
UV Risk Categories
Weather in Santa Ana varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Santa Ana, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (38°F) | 198 mm (7.8 inches) | 89% | extreme |
| February Weather | 3°C (38°F) | 240 mm (9.4 inches) | 89% | extreme |
| March Weather | 3°C (38°F) | 253 mm (10.0 inches) | 90% | extreme |
| April Weather | 3°C (37°F) | 128 mm (5.0 inches) | 89% | extreme |
| May Weather | 2°C (36°F) | 81 mm (3.2 inches) | 83% | extreme |
| June Weather | 1°C (35°F) | 35 mm (1.4 inches) | 69% | extreme |
| July Weather | 1°C (34°F) | 33 mm (1.3 inches) | 56% | extreme |
| August Weather | 1°C (35°F) | 47 mm (1.8 inches) | 50% | extreme |
| September Weather | 2°C (36°F) | 107 mm (4.2 inches) | 53% | extreme |
| October Weather | 3°C (37°F) | 148 mm (5.8 inches) | 68% | extreme |
| November Weather | 3°C (38°F) | 173 mm (6.8 inches) | 81% | extreme |
| December Weather | 3°C (38°F) | 210 mm (8.3 inches) | 87% | extreme |