Sunrise and sunset in Great Falls

Great Falls Sunrise, Sunset and Moon in August 2026

Local time (EDT)

Day length goes from 14 h 10 min on August 1 to 13 h 04 min on August 31. Sunrise moves from 6:10 AM to 6:37 AM and sunset from 8:20 PM to 7:41 PM.

Every day

Dawn and dusk are civil twilight (the sun 6 degrees below the horizon); golden hour starts when the evening sun is 6 degrees up; full dark is astronomical twilight, 18 degrees down. A blank moonrise or moonset means it falls on the next day.

DateDawnSunriseSunsetDuskGolden hourFull darkDay lengthChangeMoonMoonriseMoonset
Aug 15:40 AM6:10 AM8:20 PM8:50 PM7:43 PM10:06 PM14 h 10 minWaning gibbous, 89%9:55 PM9:05 AM
Aug 25:41 AM6:11 AM8:19 PM8:49 PM7:42 PM10:05 PM14 h 08 min-2.0 minWaning gibbous, 82%10:17 PM10:09 AM
Aug 35:42 AM6:12 AM8:18 PM8:48 PM7:41 PM10:03 PM14 h 06 min-2.0 minWaning gibbous, 73%10:41 PM11:15 AM
Aug 45:43 AM6:13 AM8:17 PM8:47 PM7:40 PM10:01 PM14 h 04 min-2.0 minWaning gibbous, 63%11:08 PM12:23 PM
Aug 55:44 AM6:14 AM8:16 PM8:45 PM7:39 PM10:00 PM14 h 02 min-2.0 minLast quarter 10:21 PM11:40 PM1:34 PM
Aug 65:45 AM6:14 AM8:15 PM8:44 PM7:38 PM9:58 PM14 h 01 min-1.0 minLast quarter, 42%2:48 PM
Aug 75:46 AM6:15 AM8:14 PM8:43 PM7:37 PM9:57 PM13 h 59 min-2.0 minWaning crescent, 32%12:19 AM4:02 PM
Aug 85:47 AM6:16 AM8:13 PM8:42 PM7:36 PM9:55 PM13 h 57 min-2.0 minWaning crescent, 23%1:10 AM5:12 PM
Aug 95:48 AM6:17 AM8:12 PM8:40 PM7:35 PM9:53 PM13 h 55 min-2.0 minWaning crescent, 14%2:12 AM6:12 PM
Aug 105:49 AM6:18 AM8:10 PM8:39 PM7:33 PM9:52 PM13 h 52 min-3.0 minWaning crescent, 8%3:24 AM7:03 PM
Aug 115:50 AM6:19 AM8:09 PM8:38 PM7:32 PM9:50 PM13 h 50 min-2.0 minWaning crescent, 3%4:42 AM7:43 PM
Aug 125:51 AM6:20 AM8:08 PM8:36 PM7:31 PM9:48 PM13 h 48 min-2.0 minNew moon 1:37 PM6:00 AM8:15 PM
Aug 135:52 AM6:21 AM8:07 PM8:35 PM7:30 PM9:47 PM13 h 46 min-2.0 minNew moon, 0%7:16 AM8:43 PM
Aug 145:53 AM6:22 AM8:05 PM8:34 PM7:29 PM9:45 PM13 h 43 min-3.0 minWaxing crescent, 2%8:27 AM9:08 PM
Aug 155:54 AM6:23 AM8:04 PM8:32 PM7:27 PM9:43 PM13 h 41 min-2.0 minWaxing crescent, 6%9:36 AM9:31 PM
Aug 165:55 AM6:24 AM8:03 PM8:31 PM7:26 PM9:42 PM13 h 39 min-2.0 minWaxing crescent, 12%10:42 AM9:55 PM
Aug 175:56 AM6:24 AM8:01 PM8:30 PM7:25 PM9:40 PM13 h 37 min-2.0 minWaxing crescent, 20%11:47 AM10:20 PM
Aug 185:57 AM6:25 AM8:00 PM8:28 PM7:24 PM9:38 PM13 h 35 min-2.0 minWaxing crescent, 29%12:52 PM10:49 PM
Aug 195:58 AM6:26 AM7:59 PM8:27 PM7:22 PM9:36 PM13 h 33 min-2.0 minFirst quarter 10:46 PM1:56 PM11:22 PM
Aug 205:59 AM6:27 AM7:57 PM8:25 PM7:21 PM9:35 PM13 h 30 min-3.0 minFirst quarter, 50%2:57 PM
Aug 216:00 AM6:28 AM7:56 PM8:24 PM7:20 PM9:33 PM13 h 28 min-2.0 minWaxing gibbous, 60%3:55 PM12:02 AM
Aug 226:01 AM6:29 AM7:54 PM8:22 PM7:18 PM9:31 PM13 h 25 min-3.0 minWaxing gibbous, 70%4:47 PM12:48 AM
Aug 236:02 AM6:30 AM7:53 PM8:21 PM7:17 PM9:29 PM13 h 23 min-2.0 minWaxing gibbous, 79%5:33 PM1:41 AM
Aug 246:03 AM6:31 AM7:51 PM8:19 PM7:16 PM9:27 PM13 h 20 min-3.0 minWaxing gibbous, 87%6:11 PM2:40 AM
Aug 256:04 AM6:32 AM7:50 PM8:18 PM7:14 PM9:26 PM13 h 18 min-2.0 minWaxing gibbous, 94%6:43 PM3:43 AM
Aug 266:05 AM6:33 AM7:49 PM8:16 PM7:13 PM9:24 PM13 h 16 min-2.0 minWaxing gibbous, 98%7:11 PM4:47 AM
Aug 276:06 AM6:34 AM7:47 PM8:15 PM7:11 PM9:22 PM13 h 13 min-3.0 minFull moon, 100%7:36 PM5:51 AM
Aug 286:07 AM6:34 AM7:46 PM8:13 PM7:10 PM9:20 PM13 h 12 min-1.0 minFull moon 12:18 AM8:00 PM6:56 AM
Aug 296:08 AM6:35 AM7:44 PM8:12 PM7:08 PM9:18 PM13 h 09 min-3.0 minWaning gibbous, 97%8:22 PM8:00 AM
Aug 306:09 AM6:36 AM7:43 PM8:10 PM7:07 PM9:17 PM13 h 07 min-2.0 minWaning gibbous, 93%8:46 PM9:06 AM
Aug 316:10 AM6:37 AM7:41 PM8:08 PM7:05 PM9:15 PM13 h 04 min-3.0 minWaning gibbous, 86%9:12 PM10:14 AM

Other months

More

Sources

Computed with the NOAA solar position equations and the lunar methods of Meeus, Astronomical Algorithms, for a flat horizon; hills and buildings delay a real sunrise.