Sunrise Forecast for Rancho Cucamonga
Tomorrow's sunrise prediction and golden hour forecast
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Alpenglow forecasts the sky from your precise location, not just Rancho Cucamonga city center — with 7-day forecasts, golden hour alerts, and home screen widgets.
Frequently Asked Questions
How can I see a beautiful sunrise?
The best sunrises occur when scattered clouds catch the early light. Find a spot with a clear eastern horizon and arrive at least 20 minutes before sunrise to watch the colors develop. Mornings after a cold front often produce the most vivid skies. Use Alpenglow's quality forecast to check which days have the best conditions. In Rancho Cucamonga today, the sun rises from the ENE (77°) at 6:20 AM — pick a spot with a clear view in that direction and arrive before first light.
What time does it get dark in Rancho Cucamonga?
Today's sunset in Rancho Cucamonga is at 7:22 PM, with full darkness arriving at 8:50 PM (America/Los_Angeles). The period between sunset and full darkness is twilight, when the sky gradually transitions from light to dark.
How long does twilight last?
Twilight in Rancho Cucamonga lasts approximately 88 minutes from sunset to full darkness (astronomical dusk). This includes civil twilight, nautical twilight, and astronomical twilight.
What is the earliest sunrise of the year in Rancho Cucamonga?
The earliest sunrise in Rancho Cucamonga in 2026 is at 5:38 AM on June 5 (America/Los_Angeles). This occurs around the summer solstice when days are longest.
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