The sun, month by month
Sunrise and sunset in Vienna in April
On April 1 in Vienna the sun rises at 06:36 and sets at 19:22; on day 30 it rises at 05:39 and sets at 20:05. Over the month the day grows 100 minutes longer.
In Vienna (48.2° latitude), April 2026 has 30 days whose sun rises at 06:36 and sets at 19:22 on the 1st, and at 05:39 and 20:05 on the 30th. Mid-month the day lasts 13 h 36 min and the sun reaches 51° above the horizon. Vitamin D synthesis is possible between 11:00 and 16:00, which is when the UV index reaches at least 3: at the best moment of the day about 11 minutes are enough for a mid-range skin phototype with a quarter of the body exposed to make around 1000 IU.
Where does the sun rise and set in Vienna in April?
Mid-April in Vienna: the sun rises in the east — a bearing of 75°, measured from true north — and sets in the west, at 285°. That is 15° north of due east at sunrise, and the same 15° north of due west at sunset. From the 1st to the last day of the month both points shift 16° north.
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 Vienna. Dawn and dusk mark civil twilight.
| Day | Dawn | Sunrise | Sunset | Dusk | Day length |
|---|---|---|---|---|---|
| 1 | 06:04 | 06:36 | 19:22 | 19:53 | 12 h 46 min |
| 2 | 06:02 | 06:34 | 19:23 | 19:55 | 12 h 50 min |
| 3 | 06:00 | 06:32 | 19:25 | 19:57 | 12 h 53 min |
| 4 | 05:58 | 06:29 | 19:26 | 19:58 | 12 h 57 min |
| 5 | 05:56 | 06:27 | 19:28 | 20:00 | 13 h 00 min |
| 6 | 05:53 | 06:25 | 19:29 | 20:01 | 13 h 04 min |
| 7 | 05:51 | 06:23 | 19:31 | 20:03 | 13 h 08 min |
| 8 | 05:49 | 06:21 | 19:32 | 20:04 | 13 h 11 min |
| 9 | 05:47 | 06:19 | 19:34 | 20:06 | 13 h 15 min |
| 10 | 05:45 | 06:17 | 19:35 | 20:07 | 13 h 18 min |
| 11 | 05:43 | 06:15 | 19:37 | 20:09 | 13 h 22 min |
| 12 | 05:41 | 06:13 | 19:38 | 20:11 | 13 h 25 min |
| 13 | 05:38 | 06:11 | 19:40 | 20:12 | 13 h 29 min |
| 14 | 05:36 | 06:09 | 19:41 | 20:14 | 13 h 32 min |
| 15 | 05:34 | 06:07 | 19:43 | 20:15 | 13 h 36 min |
| 16 | 05:32 | 06:05 | 19:44 | 20:17 | 13 h 39 min |
| 17 | 05:30 | 06:03 | 19:46 | 20:19 | 13 h 43 min |
| 18 | 05:28 | 06:01 | 19:47 | 20:20 | 13 h 46 min |
| 19 | 05:26 | 05:59 | 19:49 | 20:22 | 13 h 50 min |
| 20 | 05:24 | 05:57 | 19:50 | 20:23 | 13 h 53 min |
| 21 | 05:22 | 05:55 | 19:52 | 20:25 | 13 h 56 min |
| 22 | 05:20 | 05:53 | 19:53 | 20:27 | 14 h 00 min |
| 23 | 05:18 | 05:51 | 19:55 | 20:28 | 14 h 03 min |
| 24 | 05:16 | 05:49 | 19:56 | 20:30 | 14 h 07 min |
| 25 | 05:14 | 05:48 | 19:57 | 20:31 | 14 h 10 min |
| 26 | 05:12 | 05:46 | 19:59 | 20:33 | 14 h 13 min |
| 27 | 05:10 | 05:44 | 20:00 | 20:35 | 14 h 16 min |
| 28 | 05:08 | 05:42 | 20:02 | 20:36 | 14 h 20 min |
| 29 | 05:06 | 05:40 | 20:03 | 20:38 | 14 h 23 min |
| 30 | 05:04 | 05:39 | 20:05 | 20:40 | 14 h 26 min |
Approximate astronomical values: they can shift a minute or two from year to year.
What about vitamin D in April?
In April, the typical synthesis window in Vienna runs from 11:00 to 16:00: with medium skin and a t-shirt, ~11 min at the best moment is enough.
See the Vienna vitamin D guideCommon questions about the sun in Vienna in April
- Where does the sun set in Vienna in April?
- Mid-April in Vienna: the sun sets in the west, a bearing of 285° measured from true north, which is 15° north of due west. It rises in the east, at 75°. Over the month both points shift 16° north.
- How much daylight does Vienna gain in April?
- Over April the day gets 100 minutes longer in Vienna: on April 1 the sun rises at 06:36 and sets at 19:22, and on day 30 it rises at 05:39 and sets at 20:05.
- How many hours of daylight does Vienna get in April?
- In mid-April the day lasts 13 h 36 min in Vienna, from sunrise at 06:07 to sunset at 19:43. The table has the day length for each of the 30 days of the month.
- What time does it start to get light in Vienna in April?
- In mid-April the sky starts to get light at 05:34 in Vienna, when the sun is 6° below the horizon, and the sun itself does not rise until 06:07. The “Dawn” column of the table gives that time for every day of the month.
- What time does it get dark in Vienna in April?
- It's not the same time as sunset. In mid-April in Vienna the sun sets at 19:43, but there is still light: civil twilight does not end until 20:15, 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 Vienna in April?
- In mid-April, between 11:00 and 16:00: that is the stretch of the day when the UV index reaches 3 in Vienna, the minimum for the skin to make vitamin D. At the best moment of the day about 11 minutes are enough for a mid-range skin phototype with a quarter of the body exposed to make around 1000 IU.