Vientiane Sunrise, Sunset and Moon in September 2026
Day length goes from 12 h 29 min on September 1 to 11 h 59 min on September 30. Sunrise moves from 5:55 AM to 6:00 AM and sunset from 6:24 PM to 5:59 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.
| Date | Dawn | Sunrise | Sunset | Dusk | Golden hour | Full dark | Day length | Change | Moon | Moonrise | Moonset |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 1 | 5:33 AM | 5:55 AM | 6:24 PM | 6:46 PM | 5:55 PM | 7:38 PM | 12 h 29 min | Waning gibbous, 82% | 9:02 PM | 9:20 AM | |
| Sep 2 | 5:33 AM | 5:55 AM | 6:23 PM | 6:45 PM | 5:54 PM | 7:37 PM | 12 h 28 min | -1.0 min | Waning gibbous, 73% | 9:47 PM | 10:19 AM |
| Sep 3 | 5:34 AM | 5:56 AM | 6:22 PM | 6:44 PM | 5:53 PM | 7:36 PM | 12 h 26 min | -2.0 min | Waning gibbous, 63% | 10:39 PM | 11:21 AM |
| Sep 4 | 5:34 AM | 5:56 AM | 6:21 PM | 6:43 PM | 5:53 PM | 7:35 PM | 12 h 25 min | -1.0 min | Last quarter 2:51 PM | 11:36 PM | 12:25 PM |
| Sep 5 | 5:34 AM | 5:56 AM | 6:21 PM | 6:43 PM | 5:52 PM | 7:34 PM | 12 h 25 min | +0.0 min | Last quarter, 42% | 1:29 PM | |
| Sep 6 | 5:34 AM | 5:56 AM | 6:20 PM | 6:42 PM | 5:51 PM | 7:33 PM | 12 h 24 min | -1.0 min | Waning crescent, 32% | 12:39 AM | 2:30 PM |
| Sep 7 | 5:34 AM | 5:56 AM | 6:19 PM | 6:41 PM | 5:50 PM | 7:32 PM | 12 h 23 min | -1.0 min | Waning crescent, 23% | 1:45 AM | 3:26 PM |
| Sep 8 | 5:35 AM | 5:56 AM | 6:18 PM | 6:40 PM | 5:49 PM | 7:31 PM | 12 h 22 min | -1.0 min | Waning crescent, 14% | 2:50 AM | 4:16 PM |
| Sep 9 | 5:35 AM | 5:57 AM | 6:17 PM | 6:39 PM | 5:48 PM | 7:30 PM | 12 h 20 min | -2.0 min | Waning crescent, 8% | 3:53 AM | 5:01 PM |
| Sep 10 | 5:35 AM | 5:57 AM | 6:16 PM | 6:38 PM | 5:48 PM | 7:29 PM | 12 h 19 min | -1.0 min | Waning crescent, 3% | 4:53 AM | 5:41 PM |
| Sep 11 | 5:35 AM | 5:57 AM | 6:16 PM | 6:37 PM | 5:47 PM | 7:28 PM | 12 h 19 min | +0.0 min | New moon 10:27 AM | 5:50 AM | 6:19 PM |
| Sep 12 | 5:35 AM | 5:57 AM | 6:15 PM | 6:37 PM | 5:46 PM | 7:28 PM | 12 h 18 min | -1.0 min | New moon, 0% | 6:45 AM | 6:56 PM |
| Sep 13 | 5:35 AM | 5:57 AM | 6:14 PM | 6:36 PM | 5:45 PM | 7:27 PM | 12 h 17 min | -1.0 min | Waxing crescent, 2% | 7:39 AM | 7:32 PM |
| Sep 14 | 5:36 AM | 5:57 AM | 6:13 PM | 6:35 PM | 5:44 PM | 7:26 PM | 12 h 16 min | -1.0 min | Waxing crescent, 6% | 8:32 AM | 8:10 PM |
| Sep 15 | 5:36 AM | 5:57 AM | 6:12 PM | 6:34 PM | 5:43 PM | 7:25 PM | 12 h 15 min | -1.0 min | Waxing crescent, 12% | 9:26 AM | 8:51 PM |
| Sep 16 | 5:36 AM | 5:58 AM | 6:11 PM | 6:33 PM | 5:43 PM | 7:24 PM | 12 h 13 min | -2.0 min | Waxing crescent, 20% | 10:20 AM | 9:34 PM |
| Sep 17 | 5:36 AM | 5:58 AM | 6:10 PM | 6:32 PM | 5:42 PM | 7:23 PM | 12 h 12 min | -1.0 min | Waxing crescent, 29% | 11:15 AM | 10:21 PM |
| Sep 18 | 5:36 AM | 5:58 AM | 6:10 PM | 6:31 PM | 5:41 PM | 7:22 PM | 12 h 12 min | +0.0 min | Waxing crescent, 39% | 12:08 PM | 11:11 PM |
| Sep 19 | 5:36 AM | 5:58 AM | 6:09 PM | 6:30 PM | 5:40 PM | 7:21 PM | 12 h 11 min | -1.0 min | First quarter 3:43 AM | 1:00 PM | |
| Sep 20 | 5:36 AM | 5:58 AM | 6:08 PM | 6:30 PM | 5:39 PM | 7:20 PM | 12 h 10 min | -1.0 min | Waxing gibbous, 60% | 1:49 PM | 12:03 AM |
| Sep 21 | 5:37 AM | 5:58 AM | 6:07 PM | 6:29 PM | 5:38 PM | 7:19 PM | 12 h 09 min | -1.0 min | Waxing gibbous, 70% | 2:34 PM | 12:57 AM |
| Sep 22 | 5:37 AM | 5:58 AM | 6:06 PM | 6:28 PM | 5:37 PM | 7:18 PM | 12 h 08 min | -1.0 min | Waxing gibbous, 80% | 3:15 PM | 1:51 AM |
| Sep 23 | 5:37 AM | 5:59 AM | 6:05 PM | 6:27 PM | 5:37 PM | 7:18 PM | 12 h 06 min | -2.0 min | Waxing gibbous, 87% | 3:54 PM | 2:44 AM |
| Sep 24 | 5:37 AM | 5:59 AM | 6:04 PM | 6:26 PM | 5:36 PM | 7:17 PM | 12 h 05 min | -1.0 min | Waxing gibbous, 94% | 4:31 PM | 3:36 AM |
| Sep 25 | 5:37 AM | 5:59 AM | 6:04 PM | 6:25 PM | 5:35 PM | 7:16 PM | 12 h 05 min | +0.0 min | Waxing gibbous, 98% | 5:06 PM | 4:28 AM |
| Sep 26 | 5:37 AM | 5:59 AM | 6:03 PM | 6:24 PM | 5:34 PM | 7:15 PM | 12 h 04 min | -1.0 min | Full moon 11:49 PM | 5:42 PM | 5:21 AM |
| Sep 27 | 5:38 AM | 5:59 AM | 6:02 PM | 6:24 PM | 5:33 PM | 7:14 PM | 12 h 03 min | -1.0 min | Full moon, 100% | 6:20 PM | 6:15 AM |
| Sep 28 | 5:38 AM | 5:59 AM | 6:01 PM | 6:23 PM | 5:32 PM | 7:13 PM | 12 h 02 min | -1.0 min | Waning gibbous, 97% | 7:00 PM | 7:11 AM |
| Sep 29 | 5:38 AM | 6:00 AM | 6:00 PM | 6:22 PM | 5:31 PM | 7:12 PM | 12 h 00 min | -2.0 min | Waning gibbous, 93% | 7:45 PM | 8:11 AM |
| Sep 30 | 5:38 AM | 6:00 AM | 5:59 PM | 6:21 PM | 5:31 PM | 7:12 PM | 11 h 59 min | -1.0 min | Waning gibbous, 86% | 8:35 PM | 9:13 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.