Here are today and tomorrow's sunrise and sunset times in Boulder, Colorado. You'll also find a sunrise and sunset calendar for Boulder at the bottom of the page.
Today Monday, December 4, 2023
Sunrise today in Boulder was at 7:07 AM MST ().
Sunset today in Boulder was at 4:37 PM MST ().
Tomorrow Tuesday, December 5, 2023
Sunrise today in Boulder will be at 7:08 AM MST ().
Sunset today in Boulder will be at 4:37 PM MST ().
Calendar Boulder Sunrise and Sunset Calendar
Sunrise calendar and sunset calendar for Boulder, Colorado. Here are Boulder, CO day length, dawn, dusk, and solar noon times.
|Date||Dawn||Sunrise||Solar Noon||Sunset||Dusk||Day Length|
|December 4, 2023||6:37 am||7:07 am||11:52 am||4:37 pm||5:07 pm||9h 29m|
|December 5, 2023||6:38 am||7:08 am||11:53 am||4:37 pm||5:07 pm||9h 28m|
|December 6, 2023||6:39 am||7:09 am||11:53 am||4:37 pm||5:07 pm||9h 27m|
|December 7, 2023||6:40 am||7:10 am||11:53 am||4:37 pm||5:07 pm||9h 26m|
|December 8, 2023||6:41 am||7:11 am||11:54 am||4:37 pm||5:07 pm||9h 25m|
|December 9, 2023||6:42 am||7:12 am||11:54 am||4:37 pm||5:07 pm||9h 24m|
|December 10, 2023||6:42 am||7:13 am||11:55 am||4:37 pm||5:07 pm||9h 23m|
|December 11, 2023||6:43 am||7:14 am||11:55 am||4:37 pm||5:07 pm||9h 23m|
|December 12, 2023||6:44 am||7:14 am||11:56 am||4:37 pm||5:07 pm||9h 22m|
|December 13, 2023||6:45 am||7:15 am||11:56 am||4:37 pm||5:08 pm||9h 21m|
|December 14, 2023||6:45 am||7:16 am||11:57 am||4:37 pm||5:08 pm||9h 21m|
|December 15, 2023||6:46 am||7:17 am||11:57 am||4:37 pm||5:08 pm||9h 20m|
|December 16, 2023||6:47 am||7:17 am||11:57 am||4:38 pm||5:08 pm||9h 20m|
|December 17, 2023||6:47 am||7:18 am||11:58 am||4:38 pm||5:09 pm||9h 20m|
|December 18, 2023||6:48 am||7:19 am||11:58 am||4:38 pm||5:09 pm||9h 19m|
|December 19, 2023||6:49 am||7:19 am||11:59 am||4:39 pm||5:09 pm||9h 19m|
|December 20, 2023||6:49 am||7:20 am||11:59 am||4:39 pm||5:10 pm||9h 19m|
|December 21, 2023||6:50 am||7:20 am||12:00 pm||4:40 pm||5:10 pm||9h 19m|
|December 22, 2023||6:50 am||7:21 am||12:00 pm||4:40 pm||5:11 pm||9h 19m|
|December 23, 2023||6:51 am||7:21 am||12:01 pm||4:41 pm||5:11 pm||9h 19m|
|December 24, 2023||6:51 am||7:22 am||12:01 pm||4:41 pm||5:12 pm||9h 19m|
|December 25, 2023||6:51 am||7:22 am||12:02 pm||4:42 pm||5:12 pm||9h 19m|
|December 26, 2023||6:52 am||7:22 am||12:02 pm||4:42 pm||5:13 pm||9h 19m|
|December 27, 2023||6:52 am||7:23 am||12:03 pm||4:43 pm||5:13 pm||9h 20m|
|December 28, 2023||6:52 am||7:23 am||12:03 pm||4:44 pm||5:14 pm||9h 20m|
|December 29, 2023||6:53 am||7:23 am||12:04 pm||4:44 pm||5:15 pm||9h 21m|
|December 30, 2023||6:53 am||7:23 am||12:04 pm||4:45 pm||5:15 pm||9h 21m|
|December 31, 2023||6:53 am||7:24 am||12:05 pm||4:46 pm||5:16 pm||9h 22m|
|January 1, 2024||6:53 am||7:24 am||12:05 pm||4:47 pm||5:17 pm||9h 22m|
|January 2, 2024||6:53 am||7:24 am||12:06 pm||4:47 pm||5:18 pm||9h 23m|
|January 3, 2024||6:54 am||7:24 am||12:06 pm||4:48 pm||5:19 pm||9h 24m|
|January 4, 2024||6:54 am||7:24 am||12:06 pm||4:49 pm||5:19 pm||9h 25m|
|January 5, 2024||6:54 am||7:24 am||12:07 pm||4:50 pm||5:20 pm||9h 25m|
|January 6, 2024||6:54 am||7:24 am||12:07 pm||4:51 pm||5:21 pm||9h 26m|
|January 7, 2024||6:54 am||7:24 am||12:08 pm||4:52 pm||5:22 pm||9h 27m|
|January 8, 2024||6:54 am||7:24 am||12:08 pm||4:53 pm||5:23 pm||9h 28m|
|January 9, 2024||6:53 am||7:24 am||12:09 pm||4:54 pm||5:24 pm||9h 30m|
|January 10, 2024||6:53 am||7:23 am||12:09 pm||4:55 pm||5:25 pm||9h 31m|
|January 11, 2024||6:53 am||7:23 am||12:09 pm||4:56 pm||5:26 pm||9h 32m|
|January 12, 2024||6:53 am||7:23 am||12:10 pm||4:57 pm||5:27 pm||9h 33m|
|January 13, 2024||6:53 am||7:23 am||12:10 pm||4:58 pm||5:28 pm||9h 35m|
|January 14, 2024||6:52 am||7:22 am||12:11 pm||4:59 pm||5:29 pm||9h 36m|
|January 15, 2024||6:52 am||7:22 am||12:11 pm||5:00 pm||5:30 pm||9h 37m|
|January 16, 2024||6:52 am||7:22 am||12:11 pm||5:01 pm||5:31 pm||9h 39m|
|January 17, 2024||6:51 am||7:21 am||12:12 pm||5:02 pm||5:32 pm||9h 40m|
|January 18, 2024||6:51 am||7:21 am||12:12 pm||5:03 pm||5:33 pm||9h 42m|
|January 19, 2024||6:51 am||7:20 am||12:12 pm||5:04 pm||5:34 pm||9h 44m|
Quality Prediction Sunrise and Sunset Quality Predictions for Boulder
Quality predictions for sunrise and sunset in Boulder, Colorado. Photographers will find this chart useful when planning their sunrise shoots. A higher percentage means there will be a higher chance of color in the sky. Sunset prediction data is sourced from SunsetWx and calculated using many variables including moisture, pressure, and cloud cover.
|Event||Mon, December 4th|
- 0%-25%: Little to no color, clouds will be blocking sunset.
- 25%-50%: Typically no clouds, simple "gradient" sunset.
- 50%-75%: Cloud coverage for the sun to cast light onto.
- 75%-100%: Stunning reds and oranges, what you want in a sunset.
FAQ Frequently Asked Questions about Boulder
When is the shortest day in Boulder, CO?
The shortest day of the year in Boulder, Colorado will be on Friday, December 22, 2023. In 2024 the shortest day of the year will be on December 21, 2024.
When is the longest day in Boulder, CO?
The longest day in Boulder, Colorado will be on Wednesday, June 21, 2023. Next year the longest day of the year in Boulder, Colorado will be on June 20, 2024.
When is the earliest sunrise in Boulder, CO?
The earliest sunrise time of 2023 in Boulder, Colorado will be on Wednesday, June 14, 2023 at 5:32 AM.
When is the latest sunset in Boulder, CO?
The latest sunset time in Boulder, Colorado will be on Tuesday, June 27, 2023 at 8:35 PM.
Use data from this page using our JSON API: https://api.sunrisesunset.io/json?lat=40.01499&lng=-105.27055