Last updated: August 31, 2025
In San Juan Bautista, Paraguay, the average temperature in December reaches a warm 27°C (80°F). However, you can expect fluctuations, with temperatures dipping to a low of 14°C (57°F) and soaring up to 39°C (102°F). During this month, precipitation averages around 82 mm (3.2 in) over 8 days, while the average humidity lingers at a high 84%. Whether you're basking in the sun or preparing for showers, it's a month full of climatic contrasts!
In December in San Juan Bautista, the average temperature is 27°C (80°F). The maximum can reach 39°C (102°F) and the minimum can be as low as 14°C (57°F). This range makes it an ideal time to enjoy outdoor activities while also being prepared for cooler evenings.
In San Juan Bautista in December, the total precipitation amount reached 82 mm (3.2 in) over the course of 8 days.
In San Juan Bautista in December, humidity is 84%. With an average temperature of 27°C (80°F), this humidity feels like a thick, warm blanket enveloping you, making travel feel sluggish and exhausting.
In San Juan Bautista 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 San Juan Bautista, you can check here.
UV Risk Categories
Weather in San Juan Bautista varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in San Juan Bautista, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 28°C (82°F) | 143 mm (5.6 inches) | 77% | extreme |
| February Weather | 27°C (81°F) | 77 mm (3.0 inches) | 71% | extreme |
| March Weather | 25°C (78°F) | 110 mm (4.3 inches) | 74% | extreme |
| April Weather | 22°C (73°F) | 125 mm (4.9 inches) | 82% | very high |
| May Weather | 19°C (66°F) | 193 mm (7.6 inches) | 82% | high |
| June Weather | 17°C (63°F) | 89 mm (3.5 inches) | 73% | moderate |
| July Weather | 16°C (62°F) | 73 mm (2.9 inches) | 67% | high |
| August Weather | 18°C (65°F) | 59 mm (2.3 inches) | 49% | high |
| September Weather | 21°C (70°F) | 85 mm (3.3 inches) | 54% | very high |
| October Weather | 23°C (74°F) | 170 mm (6.7 inches) | 58% | extreme |
| November Weather | 25°C (77°F) | 152 mm (6.0 inches) | 69% | extreme |
| December Weather | 27°C (80°F) | 82 mm (3.2 inches) | 84% | extreme |