Last updated: August 31, 2025
In December, the average temperature in Santa Rosa, Paraguay hovers around 26°C (79°F), creating a warm and inviting atmosphere. Expect a range from a refreshing 14°C (58°F) to a sizzling 38°C (100°F). Be prepared for some rain as well, with an average precipitation of 97 mm (3.8 in) spread over 9 days. Additionally, the air carries an average humidity of 84%, adding to the tropical feel of the season.
In December in Santa Rosa, the average temperature is 26°C (79°F). The maximum can reach 38°C (100°F), and the minimum can be as low as 14°C (58°F). Be prepared for warm days and cooler nights while exploring this vibrant destination!
In Santa Rosa in December, the total precipitation amount reaches 97 mm (3.8 in) over the course of 9 days.
In Santa Rosa in December, humidity is 84%. With an average temperature of 26°C (79°F), this humidity feels like a warm, heavy blanket enveloping you, making travel feel sticky and exhausting, yet the vibrant atmosphere and lush surroundings offer a refreshing allure that invites exploration.
In Santa Rosa 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 Rosa, you can check here.
UV Risk Categories
Weather in Santa Rosa varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Santa Rosa, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 27°C (81°F) | 156 mm (6.2 inches) | 77% | extreme |
| February Weather | 26°C (80°F) | 102 mm (4.0 inches) | 71% | extreme |
| March Weather | 25°C (77°F) | 120 mm (4.7 inches) | 74% | extreme |
| April Weather | 22°C (72°F) | 132 mm (5.2 inches) | 82% | very high |
| May Weather | 19°C (66°F) | 216 mm (8.5 inches) | 82% | high |
| June Weather | 17°C (63°F) | 100 mm (3.9 inches) | 73% | moderate |
| July Weather | 16°C (61°F) | 77 mm (3.0 inches) | 67% | high |
| August Weather | 18°C (65°F) | 72 mm (2.8 inches) | 49% | high |
| September Weather | 21°C (69°F) | 94 mm (3.7 inches) | 54% | very high |
| October Weather | 23°C (73°F) | 183 mm (7.2 inches) | 58% | extreme |
| November Weather | 25°C (76°F) | 150 mm (5.9 inches) | 69% | extreme |
| December Weather | 26°C (79°F) | 97 mm (3.8 inches) | 84% | extreme |