Today in Rio Negro, Argentina, the sun rises at 8:54 AM and sets at 6:18 PM, giving the city exactly 9h 23m of daylight. That is 1 minutes longer than yesterday—approaching the solar plateau near the Winter Solstice. With 167 days until the Winter Solstice on December 21, Rio Negro is currently in its Winter season.
Golden Hour & Twilight Windows in Rio Negro
For photographers, filmmakers, and outdoor enthusiasts, the morning golden hour in Rio Negro runs from N/A to 9:37 AM. The evening golden hour begins at 5:35 PM and lasts until 6:18 PM.
Civil twilight—when there is still sufficient ambient light to see clearly outdoors—begins at N/A. Rio Negro sits in the subtropics, where the annual swing in daylight is moderate.
Solar Noon & UV Index
Solar noon in Rio Negro falls exactly at 1:36 PM, which is the moment the sun reaches its peak altitude of 0.19 above the horizon. At this specific time, the solar angle produces a relatively low UV exposure day for Rio Negro, typical of its Winter season.
Why Does Sunrise Shift in Rio Negro?
At Rio Negro's latitude of -40.4811973°, the sun currently rises at an azimuth of 239.47° (WSW). Because of the Earth's axial tilt, this position shifts slightly every day. Sunrise and sunset times for Rio Negro are calculated using advanced solar algorithms (SunCalc) based on coordinates -40.4811973, -67.6145911. Times are mathematically accurate to ±30 seconds.
Historical Sunrise in Rio Negro (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 Negro versus 1 year and 5 years ago:
| Year | Sunrise | Sunset | Daylight |
|---|---|---|---|
| Today | 8:54 AM | 6:18 PM | 9h 23m |
| 2025 | 8:54 AM | 6:18 PM | 9h 24m |
| 2021 | 8:54 AM | 6:18 PM | 9h 24m |
Frequently Asked Questions
What time does the sun rise in Rio Negro today?
In Rio Negro, the sun rises at exactly 8:54 AM and sets at 6:18 PM today. This gives the city a total of 9h 23m of daylight.
When is golden hour in Rio Negro today?
Today, morning golden hour in Rio Negro runs from N/A to 9:37 AM. Evening golden hour begins at 5:35 PM and lasts until 6:15 PM.
Why does sunrise in Rio Negro shift every day?
At Rio Negro's latitude, the sun currently rises at an azimuth of 239.47° (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 Negro at solar noon?
Solar noon occurs at 1:36 PM when the sun reaches 0.19. This produces a relatively low UV exposure day for Rio Negro, typical of its Winter season.
Has the sunrise time in Rio Negro 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 8:54 AM, and five years ago in 2021, it was at 8:54 AM.