Last updated: August 27, 2025
In Santa Ana, Peru, the average temperature in December hovers around 3°C (38°F), with minimums dipping to -8°C (18°F) and maximums reaching 11°C (52°F). During this month, expect about 210 mm (8.3 in) of precipitation over 28 days, contributing to an average humidity level of 87%. Stay prepared for a chilly, damp month!
In December in Santa Ana, the average temperature is 3°C (38°F), with maximums reaching 11°C (52°F) and minimums dropping as low as -8°C (18°F). It's advisable to pack warm clothing and be prepared for chilly conditions during your travels.
In Santa Ana in December, the precipitation amount is 210 mm (8.3 in) spread over 28 days.
In Santa Ana in December humidity is 87%. With an average temperature of 3°C (38°F), this humidity feels like a chilly blanket wrapped around you, making travel quite uncomfortable as the cold dampness seeps into your clothes and lingers in the air, often leaving you shivering and longing for warmer, drier conditions.
In Santa Ana in December, the maximum UV index reaches 21, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. You can find the hourly UV index in Santa Ana to better plan your outdoor activities.
UV Risk Categories
Weather in Santa Ana varies notably across the year, with each month offering distinct climate conditions. This page compares December’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 |