The sun, month by month
Sunrise and sunset in Prague in August
On August 1 in Prague the sun rises at 05:31 and sets at 20:45; on day 31 it rises at 06:18 and sets at 19:47. Over the month the day gets 105 minutes shorter.
Where does the sun rise and set in Prague in August?
Mid-August in Prague: the sun rises in the northeast — a bearing of 67°, measured from true north — and sets in the northwest, at 293°. That is 23° north of due east at sunrise, and the same 23° north of due west at sunset. From the 1st to the last day of the month both points shift 16° south.
Approximate bearings: they can be a couple of degrees out. They are measured from true north, not the north a phone compass points to.
Day by day
All times are local to Prague. Dawn and dusk mark civil twilight.
| Day | Dawn | Sunrise | Sunset | Dusk | Day length |
|---|---|---|---|---|---|
| 1 | 04:53 | 05:31 | 20:45 | 21:24 | 15 h 14 min |
| 2 | 04:54 | 05:33 | 20:43 | 21:22 | 15 h 11 min |
| 3 | 04:56 | 05:34 | 20:42 | 21:20 | 15 h 07 min |
| 4 | 04:58 | 05:36 | 20:40 | 21:18 | 15 h 04 min |
| 5 | 05:00 | 05:37 | 20:39 | 21:16 | 15 h 01 min |
| 6 | 05:01 | 05:39 | 20:37 | 21:14 | 14 h 58 min |
| 7 | 05:03 | 05:40 | 20:35 | 21:13 | 14 h 55 min |
| 8 | 05:05 | 05:42 | 20:33 | 21:11 | 14 h 51 min |
| 9 | 05:06 | 05:43 | 20:31 | 21:09 | 14 h 48 min |
| 10 | 05:08 | 05:45 | 20:30 | 21:07 | 14 h 45 min |
| 11 | 05:10 | 05:46 | 20:28 | 21:05 | 14 h 41 min |
| 12 | 05:12 | 05:48 | 20:26 | 21:02 | 14 h 38 min |
| 13 | 05:13 | 05:50 | 20:24 | 21:00 | 14 h 35 min |
| 14 | 05:15 | 05:51 | 20:22 | 20:58 | 14 h 31 min |
| 15 | 05:17 | 05:53 | 20:20 | 20:56 | 14 h 28 min |
| 16 | 05:18 | 05:54 | 20:18 | 20:54 | 14 h 24 min |
| 17 | 05:20 | 05:56 | 20:16 | 20:52 | 14 h 21 min |
| 18 | 05:22 | 05:57 | 20:14 | 20:50 | 14 h 17 min |
| 19 | 05:24 | 05:59 | 20:12 | 20:48 | 14 h 13 min |
| 20 | 05:25 | 06:00 | 20:10 | 20:45 | 14 h 10 min |
| 21 | 05:27 | 06:02 | 20:08 | 20:43 | 14 h 06 min |
| 22 | 05:29 | 06:04 | 20:06 | 20:41 | 14 h 02 min |
| 23 | 05:30 | 06:05 | 20:04 | 20:39 | 13 h 59 min |
| 24 | 05:32 | 06:07 | 20:02 | 20:36 | 13 h 55 min |
| 25 | 05:34 | 06:08 | 20:00 | 20:34 | 13 h 51 min |
| 26 | 05:35 | 06:10 | 19:58 | 20:32 | 13 h 48 min |
| 27 | 05:37 | 06:11 | 19:55 | 20:30 | 13 h 44 min |
| 28 | 05:39 | 06:13 | 19:53 | 20:27 | 13 h 40 min |
| 29 | 05:41 | 06:14 | 19:51 | 20:25 | 13 h 37 min |
| 30 | 05:42 | 06:16 | 19:49 | 20:23 | 13 h 33 min |
| 31 | 05:44 | 06:18 | 19:47 | 20:20 | 13 h 29 min |
Approximate astronomical values: they can shift a minute or two from year to year.
What about vitamin D in August?
In August, the typical synthesis window in Prague runs from 10:00 to 17:00: with medium skin and a t-shirt, ~9 min at the best moment is enough.
See the Prague vitamin D guideCommon questions about the sun in Prague in August
- Where does the sun set in Prague in August?
- Mid-August in Prague: the sun sets in the northwest, a bearing of 293° measured from true north, which is 23° north of due west. It rises in the northeast, at 67°. Over the month both points shift 16° south.
- How much daylight does Prague lose in August?
- Over August the day gets 105 minutes shorter in Prague: on August 1 the sun rises at 05:31 and sets at 20:45, and on day 31 it rises at 06:18 and sets at 19:47.
- How many hours of daylight does Prague get in August?
- In mid-August the day lasts 14 h 28 min in Prague, from sunrise at 05:53 to sunset at 20:20. The table has the day length for each of the 31 days of the month.
- What time does it start to get light in Prague in August?
- In mid-August the sky starts to get light at 05:17 in Prague, when the sun is 6° below the horizon, and the sun itself does not rise until 05:53. The “Dawn” column of the table gives that time for every day of the month.
- What time does it get dark in Prague in August?
- It's not the same time as sunset. In mid-August in Prague the sun sets at 20:20, but there is still light: civil twilight does not end until 20:56, when the sun reaches 6° below the horizon and usable outdoor light runs out. The “Dusk” column of the table gives that time day by day.
- What time of day can you make vitamin D in Prague in August?
- In mid-August, between 10:00 and 17:00: that is the stretch of the day when the UV index reaches 3 in Prague, the minimum for the skin to make vitamin D. At the best moment of the day about 9 minutes are enough for a mid-range skin phototype with a quarter of the body exposed to make around 1000 IU.