Today in Castro, Chile, the sun rises at 7:40 AM and sets at 6:19 PM, giving the city exactly 10h 38m of daylight. That is 2 minutes longer than yesterday—approaching the solar plateau near the Winter Solstice. With 122 days until the Winter Solstice on December 21, Castro is currently in its Winter season.
Golden Hour & Twilight Windows in Castro
For photographers, filmmakers, and outdoor enthusiasts, the morning golden hour in Castro runs from N/A to 8:19 AM. The evening golden hour begins at 5:39 PM and lasts until 6:19 PM.
Civil twilight—when there is still sufficient ambient light to see clearly outdoors—begins at N/A. Castro sits in the subtropics, where the annual swing in daylight is moderate.
Solar Noon & UV Index
Solar noon in Castro falls exactly at 12:59 PM, which is the moment the sun reaches its peak altitude of 2.78 above the horizon. At this specific time, the solar angle produces a relatively low UV exposure day for Castro, typical of its Winter season.
Why Does Sunrise Shift in Castro?
At Castro's latitude of -42.482375°, the sun currently rises at an azimuth of 250.70° (WSW). Because of the Earth's axial tilt, this position shifts slightly every day. Sunrise and sunset times for Castro are calculated using advanced solar algorithms (SunCalc) based on coordinates -42.482375, -73.7642918. Times are mathematically accurate to ±30 seconds.
Historical Sunrise in Castro (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 Castro versus 1 year and 5 years ago:
| Year | Sunrise | Sunset | Daylight |
|---|---|---|---|
| Today | 7:40 AM | 6:19 PM | 10h 38m |
| 2025 | 7:39 AM | 6:19 PM | 10h 39m |
| 2021 | 7:39 AM | 6:19 PM | 10h 39m |
Frequently Asked Questions
What time does the sun rise in Castro today?
In Castro, the sun rises at exactly 7:40 AM and sets at 6:19 PM today. This gives the city a total of 10h 38m of daylight.
When is golden hour in Castro today?
Today, morning golden hour in Castro runs from N/A to 8:19 AM. Evening golden hour begins at 5:39 PM and lasts until 6:16 PM.
Why does sunrise in Castro shift every day?
At Castro's latitude, the sun currently rises at an azimuth of 250.70° (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 Castro at solar noon?
Solar noon occurs at 12:59 PM when the sun reaches 2.78. This produces a relatively low UV exposure day for Castro, typical of its Winter season.
Has the sunrise time in Castro 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 7:39 AM, and five years ago in 2021, it was at 7:39 AM.