Boulder Sunrise & Sunset in May 2026

MST • 40.0150°N, 105.2705°W

Last updated: January 13, 2026

This page shows daily sunrise and sunset times for Boulder, Colorado throughout May 2026, displayed in local time. You can view how sunrise and sunset times change day by day across the entire month. The daylight characteristics of May in Boulder reflect seasonal transitions. The golden hour occurs twice daily—shortly after sunrise and before sunset—providing ideal lighting conditions for photography. During May, these periods shift gradually, offering different timing opportunities throughout the month. Outdoor enthusiasts in Boulder benefit from accurate May sun times when planning activities like hiking, running, cycling, and beach visits. Understanding when daylight begins and ends helps ensure safety and maximizes enjoyment. Whether you're a long-time resident or a first-time visitor, understanding May's sun time patterns in Boulder, Colorado enhances your ability to plan and enjoy activities. The month's daylight characteristics are part of what makes the location unique. The daily variations in sun times during May may seem minor, but they reflect the Earth's continuous motion around the sun. These changes affect everything from energy consumption to mood and daily routines. Understanding these patterns helps residents and visitors make the most of each day's available daylight.

Key May Statistics

Earliest sunrise: May 1 at 6:03 AM
Latest sunrise: May 31 at 5:36 AM
Earliest sunset: May 1 at 7:55 PM
Latest sunset: May 31 at 8:23 PM
Day length change: +0h 55m from start to end of month

Monthly Sun Trend Charts

Daily Sun Times for May 2026

Date	Sunrise	Sunset	Day Length	Morning Golden Hour	Evening Golden Hour
May 1	6:03 AM	7:55 PM	13h 52m	6:03 AM - 6:40 AM	7:18 PM - 7:55 PM
May 2	6:02 AM	7:56 PM	13h 54m	6:02 AM - 6:39 AM	7:18 PM - 7:56 PM
May 3	6:01 AM	7:57 PM	13h 56m	6:01 AM - 6:38 AM	7:19 PM - 7:57 PM
May 4	5:59 AM	7:58 PM	13h 59m	5:59 AM - 6:37 AM	7:20 PM - 7:58 PM
May 5	5:58 AM	7:59 PM	14h 1m	5:58 AM - 6:36 AM	7:21 PM - 7:59 PM
May 6	5:57 AM	8:00 PM	14h 3m	5:57 AM - 6:35 AM	7:22 PM - 8:00 PM
May 7	5:56 AM	8:01 PM	14h 5m	5:56 AM - 6:34 AM	7:23 PM - 8:01 PM
May 8	5:55 AM	8:02 PM	14h 7m	5:55 AM - 6:33 AM	7:24 PM - 8:02 PM
May 9	5:54 AM	8:03 PM	14h 9m	5:54 AM - 6:32 AM	7:25 PM - 8:03 PM
May 10	5:53 AM	8:04 PM	14h 11m	5:53 AM - 6:31 AM	7:26 PM - 8:04 PM
May 11	5:52 AM	8:05 PM	14h 14m	5:52 AM - 6:30 AM	7:27 PM - 8:05 PM
May 12	5:51 AM	8:06 PM	14h 16m	5:51 AM - 6:29 AM	7:28 PM - 8:06 PM
May 13	5:50 AM	8:07 PM	14h 18m	5:50 AM - 6:28 AM	7:29 PM - 8:07 PM
May 14	5:49 AM	8:08 PM	14h 19m	5:49 AM - 6:27 AM	7:29 PM - 8:08 PM
May 15	5:48 AM	8:09 PM	14h 21m	5:48 AM - 6:26 AM	7:30 PM - 8:09 PM
May 16	5:47 AM	8:10 PM	14h 23m	5:47 AM - 6:25 AM	7:31 PM - 8:10 PM
May 17	5:46 AM	8:11 PM	14h 25m	5:46 AM - 6:25 AM	7:32 PM - 8:11 PM
May 18	5:45 AM	8:12 PM	14h 27m	5:45 AM - 6:24 AM	7:33 PM - 8:12 PM
May 19	5:44 AM	8:13 PM	14h 29m	5:44 AM - 6:23 AM	7:34 PM - 8:13 PM
May 20	5:43 AM	8:14 PM	14h 30m	5:43 AM - 6:22 AM	7:35 PM - 8:14 PM
May 21	5:42 AM	8:15 PM	14h 32m	5:42 AM - 6:22 AM	7:35 PM - 8:15 PM
May 22	5:42 AM	8:16 PM	14h 34m	5:42 AM - 6:21 AM	7:36 PM - 8:16 PM
May 23	5:41 AM	8:16 PM	14h 35m	5:41 AM - 6:20 AM	7:37 PM - 8:16 PM
May 24	5:40 AM	8:17 PM	14h 37m	5:40 AM - 6:20 AM	7:38 PM - 8:17 PM
May 25	5:40 AM	8:18 PM	14h 39m	5:40 AM - 6:19 AM	7:39 PM - 8:18 PM
May 26	5:39 AM	8:19 PM	14h 40m	5:39 AM - 6:19 AM	7:39 PM - 8:19 PM
May 27	5:38 AM	8:20 PM	14h 42m	5:38 AM - 6:18 AM	7:40 PM - 8:20 PM
May 28	5:38 AM	8:21 PM	14h 43m	5:38 AM - 6:17 AM	7:41 PM - 8:21 PM
May 29	5:37 AM	8:21 PM	14h 44m	5:37 AM - 6:17 AM	7:42 PM - 8:21 PM
May 30	5:37 AM	8:22 PM	14h 46m	5:37 AM - 6:17 AM	7:42 PM - 8:22 PM
May 31	5:36 AM	8:23 PM	14h 47m	5:36 AM - 6:16 AM	7:43 PM - 8:23 PM

Last updated: January 13, 2026

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About sunrise and sunset in Boulder in May

Sunrise and sunset times shift slightly each day through May as we move through the solstice. The times shown are in local time for Boulder, Colorado, and are calculated based on the city's exact geographic coordinates.

You can come back daily to see updated values. This page shows you not just sunrise and sunset times, but also golden hour periods (ideal for photography), dawn and dusk times (civil twilight), and day length for every day of the month. All times are displayed in local time and update automatically based on the current date.

Whether you're planning outdoor activities, photography sessions, or simply want to know when daylight begins and ends, this calendar helps you make the most of each day in May.

Useful sunrise and sunset guides

Learn more about sunrise, sunset, and daylight patterns with our helpful guides:

Frequently Asked Questions

What time is sunrise in Boulder, Colorado in May?

Today, the sun rises in Boulder, Colorado at 7:22 AM local time. Sunrise shifts slightly each day throughout May, so check this page for the latest times.

What time is sunset in Boulder, Colorado in May?

Today, the sun sets in Boulder, Colorado at 4:58 PM local time. Sunset shifts slightly each day throughout May, so check this page for the latest times.

How long is the day in Boulder, Colorado in May?

Today's daylight in Boulder, Colorado lasts about 9h 36m. As we move through May, day length changes gradually, and this page updates daily with new values.

What is golden hour in Boulder, Colorado?

Golden hour in Boulder, Colorado refers to the period shortly after sunrise and before sunset when the sun is low in the sky, creating warm, soft lighting ideal for photography. These periods occur twice daily and shift gradually throughout the month. For more information about planning photos during golden hour, see our guide on golden hour photography.

How often are these sunrise and sunset times updated?

Sunrise and sunset times are updated daily and are based on reliable astronomical calculations. The times account for your location's exact geographic coordinates, timezone, and the Earth's position in its orbit. You can check back each day to see the latest values.

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How People Use This Information

People use sunrise and sunset times for planning outdoor activities, photography, travel, prayer times, fitness routines, gardening, and understanding seasonal daylight changes. SunTimesToday is designed as a quick, location-specific reference that updates daily to reflect accurate astronomical calculations.

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Data Source & Accuracy

Sunrise, sunset, daylight length, and twilight times on SunTimesToday are calculated using standard astronomical algorithms based on your selected location and date. Data is updated daily to reflect seasonal and yearly changes. While times are accurate for most practical uses, small variations may occur due to atmospheric conditions and local geography.