Last updated: August 27, 2025
In Santa Cruz, Peru, the average temperature in December hovers around 12°C (54°F), with chilly lows of 4°C (39°F) and pleasant highs reaching 19°C (66°F). Expect a fair amount of precipitation, with 198 mm (7.8 in) falling over 27 days, contributing to the average humidity of 90%. So, be prepared for a damp yet mild experience!
In December in Santa Cruz, the average temperature is 12°C (54°F). The maximum can reach 19°C (66°F), and the minimum can be as low as 4°C (39°F). Travelers should be prepared for mild weather with the possibility of cooler days, making it a great time to explore the area comfortably.
In Santa Cruz in December, the total precipitation amount is 198 mm (7.8 in) spread over 27 days.
In Santa Cruz in December, humidity is 90%. With an average temperature of 12°C (54°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities uncomfortable and traveling a bit more draining than usual.
In Santa Cruz in December, the maximum UV index is 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to the Hourly UV Index in Santa Cruz.
UV Risk Categories
Weather in Santa Cruz varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Santa Cruz, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 12°C (53°F) | 307 mm (12.1 inches) | 91% | extreme |
| February Weather | 12°C (54°F) | 343 mm (13.5 inches) | 90% | extreme |
| March Weather | 12°C (54°F) | 437 mm (17.2 inches) | 91% | extreme |
| April Weather | 12°C (54°F) | 229 mm (9.0 inches) | 89% | extreme |
| May Weather | 12°C (54°F) | 95 mm (3.7 inches) | 85% | extreme |
| June Weather | 12°C (54°F) | 16 mm (0.6 inches) | 65% | extreme |
| July Weather | 12°C (55°F) | 12 mm (0.5 inches) | 47% | extreme |
| August Weather | 13°C (55°F) | 16 mm (0.6 inches) | 38% | extreme |
| September Weather | 13°C (55°F) | 50 mm (2.0 inches) | 40% | extreme |
| October Weather | 12°C (55°F) | 103 mm (4.0 inches) | 56% | extreme |
| November Weather | 13°C (55°F) | 95 mm (3.7 inches) | 76% | extreme |
| December Weather | 12°C (54°F) | 198 mm (7.8 inches) | 90% | extreme |