Last updated: August 22, 2025
In December, the average temperature in Bella Vista, Argentina hovers around 26°C (79°F), but be prepared for a range—temperatures can dip to a minimum of 12°C (54°F) and soar to a sweltering 39°C (102°F). Expect a total precipitation of 83 mm (3.3 in) over approximately 6 days, contributing to an average humidity level of 75%.
In December in Bella Vista, the average temperature is 26°C (79°F). The maximum can reach 39°C (102°F) and the minimum can be as low as 12°C (54°F). Be prepared for a warm climate, with occasional cool evenings, making it an ideal time for both outdoor activities and relaxation.
In Bella Vista in December, the precipitation amount is 83 mm (3.3 in) over the course of 6 days.
In Bella Vista in December, humidity is 75%. With an average temperature of 26°C (79°F), this humidity feels like a warm blanket wrapped around you, making traveling a sticky experience where every step requires extra effort and frequent breaks to cool off.
In Bella Vista 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 Bella Vista, you can check here.
UV Risk Categories
Weather in Bella Vista varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Bella Vista, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 27°C (81°F) | 168 mm (6.6 inches) | 66% | extreme |
| February Weather | 26°C (79°F) | 60 mm (2.4 inches) | 61% | extreme |
| March Weather | 24°C (76°F) | 96 mm (3.8 inches) | 71% | extreme |
| April Weather | 21°C (71°F) | 126 mm (5.0 inches) | 81% | very high |
| May Weather | 17°C (64°F) | 118 mm (4.6 inches) | 84% | high |
| June Weather | 15°C (60°F) | 57 mm (2.3 inches) | 76% | moderate |
| July Weather | 15°C (59°F) | 35 mm (1.4 inches) | 64% | moderate |
| August Weather | 17°C (62°F) | 41 mm (1.6 inches) | 46% | high |
| September Weather | 19°C (67°F) | 102 mm (4.0 inches) | 55% | very high |
| October Weather | 22°C (71°F) | 98 mm (3.9 inches) | 57% | extreme |
| November Weather | 24°C (76°F) | 137 mm (5.4 inches) | 59% | extreme |
| December Weather | 26°C (79°F) | 83 mm (3.3 inches) | 75% | extreme |