Sunset & Sunrise Today in Castle Rock, Colorado

In Castle Rock, Colorado, the sun rises at 6:19 AM and sets at 7:43 PM today, Sunday, August 23, 2026, for a total of 13h 23m of daylight. The sun reaches its high point above Castle Rock at 1:02 PM.

Because Castle Rock is at 39.37° (the mid-latitudes), daylight swings noticeably between the long days of summer and the short days of winter. Each day is currently getting about 2 minutes shorter and 22 seconds. Through summer, the sunset time in Castle Rock keeps shifting, which is why it pays to check the exact figure day by day.

For photographers, the evening golden hour in Castle Rock runs from about 7:08 PM to 8:01 PM — that warm, low, flattering light just before sunset. The blue hour follows, roughly 8:01 PM to 8:11 PM, as twilight deepens.

Tomorrow, sunset in Castle Rock is at 7:41 PM and sunrise at 6:20 AM — about 2m 23s less daylight than today. The table below shows how sunrise and sunset in Castle Rock drift across the whole year.

It's summer in Castle Rock right now, when daylight is at its most generous. Over the course of the year, sunset in Castle Rock ranges from as early as 4:35 PM (around December 2) to as late as 8:30 PM (around June 25). Its longest day lands on June 20 with 14h 56m of daylight, and its shortest on December 21 with just 9h 22m.