Last updated: August 22, 2025
In Sao Joao, Brazil, the average temperature in December hovers around 24°C (75°F), with delightful variations ranging from a minimum of 18°C (64°F) to a maximum of 32°C (90°F). However, don’t forget your umbrella, as 39 mm (1.5 in) of precipitation may grace this month over 11 days. With an average humidity of 72%, expect a comfortably mild climate, perfect for outdoor adventures!
In December in Sao Joao, the average temperature is 24°C (75°F), with maximums reaching up to 32°C (90°F) and minimums dropping as low as 18°C (64°F). This mild climate makes Sao Joao an ideal destination for travelers seeking comfortable weather.
In Sao Joao in December, the precipitation amount is 39 mm (1.5 in) over the course of 11 days.
In Sao Joao in December, humidity is 72%. With an average temperature of 24°C (75°F), this humidity feels like a warm blanket wrapped around you, making any travel plans feel pleasantly sticky but still enjoyable as long as you stay hydrated and take breaks in the shade.
In Sao Joao in December, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Sao Joao.
UV Risk Categories
Weather in Sao Joao varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Sao Joao, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 24°C (75°F) | 45 mm (1.8 inches) | 84% | extreme |
| February Weather | 24°C (76°F) | 50 mm (2.0 inches) | 87% | extreme |
| March Weather | 24°C (76°F) | 98 mm (3.8 inches) | 88% | extreme |
| April Weather | 24°C (75°F) | 91 mm (3.6 inches) | 89% | extreme |
| May Weather | 22°C (73°F) | 111 mm (4.4 inches) | 90% | extreme |
| June Weather | 21°C (71°F) | 103 mm (4.1 inches) | 89% | extreme |
| July Weather | 20°C (69°F) | 124 mm (4.9 inches) | 86% | extreme |
| August Weather | 20°C (69°F) | 83 mm (3.3 inches) | 84% | extreme |
| September Weather | 21°C (71°F) | 70 mm (2.7 inches) | 79% | extreme |
| October Weather | 23°C (73°F) | 39 mm (1.5 inches) | 74% | extreme |
| November Weather | 24°C (75°F) | 37 mm (1.5 inches) | 71% | extreme |
| December Weather | 24°C (75°F) | 39 mm (1.5 inches) | 72% | extreme |