Last updated: August 22, 2025
In December, the average temperature in Colonias Unidas, Argentina hovers around 27°C (80°F), offering a pleasant climate for outdoor activities. However, be prepared for a temperature range that can dip to a cool 13°C (56°F) and soar as high as 40°C (105°F). With 58 mm (2.3 in) of precipitation spread over approximately 7 days, occasional rain showers might add a refreshing touch. The average humidity of 82% ensures that the air feels consistently warm and inviting.
In December in Colonias Unidas, the average temperature is 27°C (80°F). Maximum can reach 40°C (105°F) and minimum can be as low as 13°C (56°F). Be sure to pack both light clothing for the heat and warmer layers for the cooler evenings when traveling.
In Colonias Unidas in December, the precipitation amount is 58 mm (2.3 in) over the course of 7 days.
In Colonias Unidas in December, humidity is 82%. With an average temperature of 27°C (80°F), this humidity feels like a warm blanket enveloping you, making outdoor activities feel sticky and heavy, often leaving travelers longing for shade and a refreshing drink.
In Colonias Unidas 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 Colonias Unidas, you can check here.
UV Risk Categories
Weather in Colonias Unidas varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Colonias Unidas, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 28°C (82°F) | 134 mm (5.3 inches) | 76% | extreme |
| February Weather | 27°C (80°F) | 65 mm (2.6 inches) | 70% | extreme |
| March Weather | 25°C (77°F) | 108 mm (4.3 inches) | 73% | extreme |
| April Weather | 22°C (72°F) | 89 mm (3.5 inches) | 83% | very high |
| May Weather | 18°C (65°F) | 90 mm (3.6 inches) | 85% | high |
| June Weather | 17°C (62°F) | 48 mm (1.9 inches) | 73% | moderate |
| July Weather | 16°C (60°F) | 37 mm (1.4 inches) | 63% | high |
| August Weather | 18°C (64°F) | 37 mm (1.5 inches) | 44% | very high |
| September Weather | 21°C (70°F) | 76 mm (3.0 inches) | 50% | very high |
| October Weather | 23°C (73°F) | 118 mm (4.7 inches) | 53% | extreme |
| November Weather | 25°C (77°F) | 157 mm (6.2 inches) | 66% | extreme |
| December Weather | 27°C (80°F) | 58 mm (2.3 inches) | 82% | extreme |