The sun, month by month
Sunrise and sunset in Prague in September
On September 1 in Prague the sun rises at 06:19 and sets at 19:44; on day 30 it rises at 07:04 and sets at 18:38. Over the month the day gets 111 minutes shorter.
Sunrise06:41
Sunset19:13
Golden hour18:30–19:13
Day length12 h 32 min
Day by day
All times are local to Prague. Dawn and dusk mark civil twilight.
| Day | Dawn | Sunrise | Sunset | Dusk | Day length |
|---|---|---|---|---|---|
| 1 | 05:46 | 06:19 | 19:44 | 20:18 | 13 h 25 min |
| 2 | 05:47 | 06:21 | 19:42 | 20:16 | 13 h 21 min |
| 3 | 05:49 | 06:22 | 19:40 | 20:13 | 13 h 18 min |
| 4 | 05:51 | 06:24 | 19:38 | 20:11 | 13 h 14 min |
| 5 | 05:52 | 06:25 | 19:35 | 20:09 | 13 h 10 min |
| 6 | 05:54 | 06:27 | 19:33 | 20:06 | 13 h 06 min |
| 7 | 05:55 | 06:28 | 19:31 | 20:04 | 13 h 02 min |
| 8 | 05:57 | 06:30 | 19:29 | 20:02 | 12 h 59 min |
| 9 | 05:59 | 06:32 | 19:26 | 19:59 | 12 h 55 min |
| 10 | 06:00 | 06:33 | 19:24 | 19:57 | 12 h 51 min |
| 11 | 06:02 | 06:35 | 19:22 | 19:54 | 12 h 47 min |
| 12 | 06:04 | 06:36 | 19:19 | 19:52 | 12 h 43 min |
| 13 | 06:05 | 06:38 | 19:17 | 19:50 | 12 h 39 min |
| 14 | 06:07 | 06:39 | 19:15 | 19:47 | 12 h 35 min |
| 15 | 06:08 | 06:41 | 19:13 | 19:45 | 12 h 32 min |
| 16 | 06:10 | 06:42 | 19:10 | 19:43 | 12 h 28 min |
| 17 | 06:12 | 06:44 | 19:08 | 19:40 | 12 h 24 min |
| 18 | 06:13 | 06:46 | 19:06 | 19:38 | 12 h 20 min |
| 19 | 06:15 | 06:47 | 19:03 | 19:36 | 12 h 16 min |
| 20 | 06:16 | 06:49 | 19:01 | 19:33 | 12 h 12 min |
| 21 | 06:18 | 06:50 | 18:59 | 19:31 | 12 h 08 min |
| 22 | 06:20 | 06:52 | 18:56 | 19:29 | 12 h 05 min |
| 23 | 06:21 | 06:53 | 18:54 | 19:26 | 12 h 01 min |
| 24 | 06:23 | 06:55 | 18:52 | 19:24 | 11 h 57 min |
| 25 | 06:24 | 06:57 | 18:50 | 19:22 | 11 h 53 min |
| 26 | 06:26 | 06:58 | 18:47 | 19:20 | 11 h 49 min |
| 27 | 06:28 | 06:60 | 18:45 | 19:17 | 11 h 45 min |
| 28 | 06:29 | 07:01 | 18:43 | 19:15 | 11 h 42 min |
| 29 | 06:31 | 07:03 | 18:41 | 19:13 | 11 h 38 min |
| 30 | 06:32 | 07:04 | 18:38 | 19:11 | 11 h 34 min |
Approximate astronomical values: they can shift a minute or two from year to year.
What about vitamin D in September?
In September, the typical synthesis window in Prague runs from 12:00 to 15:00: with medium skin and a t-shirt, ~14 min at the best moment is enough.
See the Prague vitamin D guide