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Boulder, CO sky calendar · October 2026

Full moon: Sun, Oct 25. New moon: Sat, Oct 10. Sunrise moves from 6:57 AM to 7:29 AM, sunset from 6:43 PM to 5:59 PM. 5 sky events this month (below). Times are local (MDT).

DateSunriseSunsetMoonriseMoonsetMoon
Thu, Oct 16:57 AM6:43 PM9:49 PM12:54 PMWaning gibbous · 70%
Fri, Oct 26:58 AM6:41 PM10:54 PM1:59 PMWaning gibbous · 59%
Sat, Oct 36:59 AM6:39 PM—2:53 PMLast quarter · 48%
Sun, Oct 47:00 AM6:38 PM12:06 AM3:36 PMWaning crescent · 37%
Mon, Oct 57:01 AM6:36 PM1:21 AM4:11 PMWaning crescent · 26%
Tue, Oct 67:02 AM6:35 PM2:35 AM4:39 PMWaning crescent · 17%
Wed, Oct 77:03 AM6:33 PM3:47 AM5:04 PMWaning crescent · 10%
Thu, Oct 87:04 AM6:31 PM4:56 AM5:28 PMWaning crescent · 4%
Fri, Oct 97:05 AM6:30 PM6:04 AM5:50 PMWaning crescent · 1%
Sat, Oct 107:06 AM6:28 PM7:10 AM6:14 PMNew moon · 0%
Sun, Oct 117:07 AM6:27 PM8:17 AM6:40 PMWaxing crescent · 1%
Mon, Oct 127:08 AM6:25 PM9:23 AM7:10 PMWaxing crescent · 5%
Tue, Oct 137:09 AM6:24 PM10:28 AM7:44 PMWaxing crescent · 10%
Wed, Oct 147:10 AM6:22 PM11:31 AM8:26 PMWaxing crescent · 16%
Thu, Oct 157:11 AM6:21 PM12:28 PM9:14 PMWaxing crescent · 24%
Fri, Oct 167:12 AM6:19 PM1:18 PM10:09 PMWaxing crescent · 32%
Sat, Oct 177:13 AM6:18 PM2:01 PM11:08 PMWaxing crescent · 41%
Sun, Oct 187:14 AM6:16 PM2:37 PM—First quarter · 51%
Mon, Oct 197:15 AM6:15 PM3:07 PM12:11 AMWaxing gibbous · 60%
Tue, Oct 207:17 AM6:13 PM3:33 PM1:14 AMWaxing gibbous · 70%
Wed, Oct 217:18 AM6:12 PM3:57 PM2:18 AMWaxing gibbous · 78%
Thu, Oct 227:19 AM6:11 PM4:20 PM3:23 AMWaxing gibbous · 86%
Fri, Oct 237:20 AM6:09 PM4:42 PM4:30 AMWaxing gibbous · 93%
Sat, Oct 247:21 AM6:08 PM5:07 PM5:38 AMWaxing gibbous · 97%
Sun, Oct 257:22 AM6:07 PM5:35 PM6:50 AMFull moon · 100%
Mon, Oct 267:23 AM6:05 PM6:08 PM8:06 AMWaning gibbous · 99%
Tue, Oct 277:24 AM6:04 PM6:50 PM9:23 AMWaning gibbous · 96%
Wed, Oct 287:25 AM6:03 PM7:42 PM10:40 AMWaning gibbous · 91%
Thu, Oct 297:26 AM6:01 PM8:45 PM11:50 AMWaning gibbous · 83%
Fri, Oct 307:28 AM6:00 PM9:57 PM12:48 PMWaning gibbous · 73%
Sat, Oct 317:29 AM5:59 PM11:12 PM1:35 PMWaning gibbous · 63%

Sky events this month

  • Sun, Oct 4 6:12 AMSaturn at oppositionClosest to Earth and brightest of the year, up all night
  • Thu, Oct 8Draconids meteor shower peakUp to about 10 meteors an hour under a perfectly dark sky · the Moon stays out of the way
  • Mon, Oct 12 4:06 AMMercury farthest from the Sun in the evening sky25° from the Sun: the best time to see it, low in the west after sunset
  • Tue, Oct 20Orionids meteor shower peakUp to about 20 meteors an hour under a perfectly dark sky · bright moonlight hides fainter meteors
  • Sun, Oct 25 10:12 PMFull moon

Month by month

Calculated with Astronomy Engine (MIT license).