Last updated: August 22, 2025
In Casa Branca, Brazil, the average temperature in December hovers around 24°C (76°F), offering a pleasant climate for outdoor activities. Temperatures can range from a cool 14°C (58°F) to a warm 35°C (96°F), creating a diverse weather experience. Expect approximately 150 mm (5.9 in) of precipitation spread over about 18 days, complemented by an average humidity level of 72%, ensuring a refreshing atmosphere throughout the month.
In December in Casa Branca, the average temperature is 24°C (76°F). Maximums can reach 35°C (96°F) and minimums can be as low as 14°C (58°F). This makes Casa Branca an ideal destination for travelers looking to enjoy warm weather while having the option for cooler evenings.
In Casa Branca in December, the precipitation amount is 150 mm (5.9 in) over the course of 18 days.
In Casa Branca in December humidity is 72%. With an average temperature of 24°C (76°F), this humidity feels like a warm, muggy embrace that can make outdoor activities a bit uncomfortable, so travelers should stay hydrated and plan for frequent breaks in the shade.
In Casa Branca in December, the maximum UV index is 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to the Hourly UV Index in Casa Branca.
UV Risk Categories
Weather in Casa Branca varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Casa Branca, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 24°C (76°F) | 167 mm (6.6 inches) | 85% | extreme |
| February Weather | 24°C (76°F) | 140 mm (5.5 inches) | 87% | extreme |
| March Weather | 24°C (76°F) | 114 mm (4.5 inches) | 87% | extreme |
| April Weather | 23°C (73°F) | 56 mm (2.2 inches) | 80% | extreme |
| May Weather | 20°C (68°F) | 34 mm (1.3 inches) | 74% | very high |
| June Weather | 19°C (67°F) | 15 mm (0.6 inches) | 72% | high |
| July Weather | 18°C (65°F) | 9 mm (0.4 inches) | 67% | very high |
| August Weather | 20°C (69°F) | 22 mm (0.9 inches) | 58% | very high |
| September Weather | 24°C (76°F) | 29 mm (1.1 inches) | 49% | extreme |
| October Weather | 24°C (76°F) | 99 mm (3.9 inches) | 36% | extreme |
| November Weather | 24°C (75°F) | 139 mm (5.5 inches) | 65% | extreme |
| December Weather | 24°C (76°F) | 150 mm (5.9 inches) | 72% | extreme |