Last updated: August 22, 2025
In December, the average temperature in Sao Borja, Brazil hovers around 26°C (79°F), offering a pleasant climate for activities. However, temperatures can swing between a cool 12°C (54°F) and a scorching 39°C (103°F). Expect 82 mm (3.2 in) of precipitation over approximately 7 days, contributing to a lush atmosphere and a high average humidity of 81%. Whether you're exploring the outdoors or enjoying indoor attractions, this month promises a unique experience!
In December in Sao Borja, the average temperature is 26°C (79°F). Maximums can reach 39°C (103°F), while minimums can drop to as low as 12°C (54°F). Be prepared for warm days and cooler nights when traveling during this month.
In Sao Borja in December, the precipitation amount is 82 mm (3.2 in) over the course of 7 days.
In Sao Borja in December, humidity is 81%. With an average temperature of 26°C (79°F), this humidity feels like a warm, heavy blanket wrapping around you, making outdoor adventures stickier and more draining, yet still vibrant with life—perfect for exploring local culture, but you'll want to take frequent breaks and stay hydrated.
In Sao Borja 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 Sao Borja, you can check here.
UV Risk Categories
Weather in Sao Borja varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Sao Borja, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 27°C (81°F) | 166 mm (6.5 inches) | 70% | extreme |
| February Weather | 26°C (79°F) | 63 mm (2.5 inches) | 66% | extreme |
| March Weather | 24°C (76°F) | 160 mm (6.3 inches) | 73% | extreme |
| April Weather | 21°C (71°F) | 132 mm (5.2 inches) | 81% | very high |
| May Weather | 18°C (64°F) | 170 mm (6.7 inches) | 82% | high |
| June Weather | 16°C (61°F) | 101 mm (4.0 inches) | 77% | moderate |
| July Weather | 15°C (59°F) | 72 mm (2.8 inches) | 69% | moderate |
| August Weather | 17°C (62°F) | 76 mm (3.0 inches) | 51% | high |
| September Weather | 19°C (67°F) | 128 mm (5.0 inches) | 59% | very high |
| October Weather | 22°C (71°F) | 143 mm (5.6 inches) | 63% | extreme |
| November Weather | 24°C (75°F) | 128 mm (5.0 inches) | 66% | extreme |
| December Weather | 26°C (79°F) | 82 mm (3.2 inches) | 81% | extreme |