Last updated: August 22, 2025
In December, the average temperature in Santa Cruz, Chile hovers around 20°C (69°F), with a range that can dip to a cool 9°C (48°F) and soar up to a warm 35°C (95°F). Expect a dry spell with only 2 mm (0.1 in) of precipitation over 0 days, accompanied by a pleasant average humidity of 39%. Enjoy the ideal weather!
In December in Santa Cruz, the average temperature is 20°C (69°F). Maximum temperatures can reach 35°C (95°F), while the minimum can drop to as low as 9°C (48°F). This makes Santa Cruz a great destination for travelers who enjoy mild weather during the day but should be prepared for cooler nights.
In Santa Cruz in December, the precipitation amount is 2 mm (0.1 in) during a span of 0 days.
In Santa Cruz in December, humidity is 39%. With an average temperature of 20°C (69°F), this humidity feels like a perfect balance, making it comfortable for traveling and exploring, allowing you to enjoy the outdoors without feeling overheated or sticky.
In Santa Cruz in December, 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 Cruz, you can check here.
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 | 21°C (70°F) | 11 mm (0.4 inches) | 40% | extreme |
| February Weather | 21°C (69°F) | 6 mm (0.2 inches) | 41% | extreme |
| March Weather | 18°C (65°F) | 7 mm (0.3 inches) | 46% | extreme |
| April Weather | 15°C (59°F) | 18 mm (0.7 inches) | 54% | high |
| May Weather | 11°C (52°F) | 53 mm (2.1 inches) | 70% | moderate |
| June Weather | 9°C (48°F) | 170 mm (6.7 inches) | 78% | moderate |
| July Weather | 8°C (47°F) | 76 mm (3.0 inches) | 82% | moderate |
| August Weather | 9°C (49°F) | 94 mm (3.7 inches) | 79% | moderate |
| September Weather | 12°C (53°F) | 52 mm (2.0 inches) | 62% | very high |
| October Weather | 14°C (57°F) | 37 mm (1.5 inches) | 64% | extreme |
| November Weather | 18°C (64°F) | 12 mm (0.5 inches) | 53% | extreme |
| December Weather | 20°C (69°F) | 2 mm (0.1 inches) | 39% | extreme |