Last updated: August 28, 2025
In December, Santa Catalina, Uruguay experiences an average temperature of 23°C (73°F), with extremes ranging from a cool 7°C (44°F) to a warm 36°C (98°F). During this month, you can expect about 84 mm (3.3 in) of precipitation over 6 days, while the average humidity hovers around 63%. Embrace the diverse weather conditions as you explore this vibrant destination!
In December in Santa Catalina, the average temperature is 23°C (73°F). The maximum can reach up to 36°C (98°F), while the minimum can drop as low as 7°C (44°F). Be prepared for a wide range of temperatures and pack accordingly for your travels.
In Santa Catalina in December, the precipitation amount is 84 mm (3.3 in) accumulated over the course of 6 days.
In Santa Catalina in December humidity is 63%. With an average temperature of 23°C (73°F), this humidity feels like a warm embrace, making outdoor excursions enjoyable yet slightly sticky, so travelers should dress lightly and stay hydrated to fully appreciate the sights.
In Santa Catalina 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 Catalina, you can check here.
UV Risk Categories
Weather in Santa Catalina varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Santa Catalina, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 24°C (76°F) | 95 mm (3.7 inches) | 54% | extreme |
| February Weather | 23°C (73°F) | 120 mm (4.7 inches) | 61% | extreme |
| March Weather | 21°C (70°F) | 91 mm (3.6 inches) | 69% | extreme |
| April Weather | 18°C (65°F) | 79 mm (3.1 inches) | 79% | very high |
| May Weather | 14°C (57°F) | 92 mm (3.6 inches) | 85% | moderate |
| June Weather | 12°C (53°F) | 79 mm (3.1 inches) | 82% | moderate |
| July Weather | 11°C (51°F) | 79 mm (3.1 inches) | 69% | moderate |
| August Weather | 12°C (54°F) | 89 mm (3.5 inches) | 65% | high |
| September Weather | 14°C (58°F) | 87 mm (3.4 inches) | 70% | very high |
| October Weather | 17°C (62°F) | 110 mm (4.3 inches) | 63% | extreme |
| November Weather | 20°C (69°F) | 64 mm (2.5 inches) | 60% | extreme |
| December Weather | 23°C (73°F) | 84 mm (3.3 inches) | 63% | extreme |