Today in Rio Branco, Brazil, the sun rises at 5:50 AM and sets at 5:24 PM, giving the city exactly 11h 33m of daylight. That is 0 minutes longer than yesterday—approaching the solar plateau near the Winter Solstice. With 167 days until the Winter Solstice on December 21, Rio Branco is currently in its Winter season.
Golden Hour & Twilight Windows in Rio Branco
For photographers, filmmakers, and outdoor enthusiasts, the morning golden hour in Rio Branco runs from N/A to 6:20 AM. The evening golden hour begins at 4:53 PM and lasts until 5:24 PM.
Civil twilight—when there is still sufficient ambient light to see clearly outdoors—begins at N/A. Near the equator, Rio Branco's daylight stays remarkably stable year-round, deviating very little from the annual average.
Solar Noon & UV Index
Solar noon in Rio Branco falls exactly at 11:37 AM, which is the moment the sun reaches its peak altitude of 14.93 above the horizon. At this specific time, the solar angle produces a relatively low UV exposure day for Rio Branco, typical of its Winter season.
Why Does Sunrise Shift in Rio Branco?
At Rio Branco's latitude of -9.9765362°, the sun currently rises at an azimuth of 243.21° (WSW). Because of the Earth's axial tilt, this position shifts slightly every day. Sunrise and sunset times for Rio Branco are calculated using advanced solar algorithms (SunCalc) based on coordinates -9.9765362, -67.8220778. Times are mathematically accurate to ±30 seconds.
Historical Sunrise in Rio Branco (Past Years)
Due to the Earth's precise orbit, solar times remain highly consistent year over year. Here is a comparison of today's sunrise and sunset times in Rio Branco versus 1 year and 5 years ago:
| Year | Sunrise | Sunset | Daylight |
|---|---|---|---|
| Today | 5:50 AM | 5:24 PM | 11h 33m |
| 2025 | 5:50 AM | 5:24 PM | 11h 33m |
| 2021 | 5:50 AM | 5:24 PM | 11h 33m |
Frequently Asked Questions
What time does the sun rise in Rio Branco today?
In Rio Branco, the sun rises at exactly 5:50 AM and sets at 5:24 PM today. This gives the city a total of 11h 33m of daylight.
When is golden hour in Rio Branco today?
Today, morning golden hour in Rio Branco runs from N/A to 6:20 AM. Evening golden hour begins at 4:53 PM and lasts until 5:21 PM.
Why does sunrise in Rio Branco shift every day?
At Rio Branco's latitude, the sun currently rises at an azimuth of 243.21° (WSW). Because of Earth's tilt, the city is approaching the solar plateau near the Winter Solstice until the Winter Solstice on December 21.
What is the UV Index in Rio Branco at solar noon?
Solar noon occurs at 11:37 AM when the sun reaches 14.93. This produces a relatively low UV exposure day for Rio Branco, typical of its Winter season.
Has the sunrise time in Rio Branco changed compared to previous years?
Due to the Earth's precise orbit, solar times remain highly consistent year over year. Exactly one year ago in 2025, sunrise was at 5:50 AM, and five years ago in 2021, it was at 5:50 AM.