Last updated: March 2, 2024
The weather in Rio Branco, Brazil, during January is characterized by an average temperature of 26°C (79°F). Highs can soar to 33°C (91°F), while lows may dip to 22°C (71°F). Typically, the humidity level in Rio Branco throughout January hovers around 88%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In January, Rio Branco averages 264 mm (10.4 inches) of rainfall, typically over the course of 23 rainy days. The month enjoys an average of 12 hours 37 minutes of daylight, with the sun shining for approximately 6 hours 33 minutes each day. Additionally, there is a 12% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In January, the UV Index in Rio Branco reaches a maximum of 15, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, during which unprotected skin may burn in as little as 10 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 2 | 5 | 9 | 12 | 15 | 15 | 13 | 9 | 5 | 2 | 1 | 0 | 0 |
| Exposure | Low | Moderate | VeryHigh | Extreme | VeryHigh | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 15 min | 10 min | 15 min | 30 min | 45 min | ||||||