The sun, month by month
Sunrise and sunset in Buenos Aires in April
On April 1 in Buenos Aires the sun rises at 07:05 and sets at 18:51; on day 30 it rises at 07:28 and sets at 18:14. Over the month the day gets 60 minutes shorter.
Where does the sun rise and set in Buenos Aires in April?
Mid-April in Buenos Aires: the sun rises in the east — a bearing of 79°, measured from true north — and sets in the west, at 281°. That is 11° north of due east at sunrise, and the same 11° north of due west at sunset. From the 1st to the last day of the month both points shift 13° 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 Buenos Aires. Dawn and dusk mark civil twilight.
| Day | Dawn | Sunrise | Sunset | Dusk | Day length |
|---|---|---|---|---|---|
| 1 | 06:40 | 07:05 | 18:51 | 19:16 | 11 h 46 min |
| 2 | 06:41 | 07:06 | 18:49 | 19:15 | 11 h 44 min |
| 3 | 06:41 | 07:06 | 18:48 | 19:13 | 11 h 42 min |
| 4 | 06:42 | 07:07 | 18:47 | 19:12 | 11 h 39 min |
| 5 | 06:43 | 07:08 | 18:45 | 19:10 | 11 h 37 min |
| 6 | 06:44 | 07:09 | 18:44 | 19:09 | 11 h 35 min |
| 7 | 06:44 | 07:10 | 18:42 | 19:08 | 11 h 33 min |
| 8 | 06:45 | 07:10 | 18:41 | 19:06 | 11 h 31 min |
| 9 | 06:46 | 07:11 | 18:40 | 19:05 | 11 h 28 min |
| 10 | 06:47 | 07:12 | 18:38 | 19:04 | 11 h 26 min |
| 11 | 06:47 | 07:13 | 18:37 | 19:02 | 11 h 24 min |
| 12 | 06:48 | 07:14 | 18:36 | 19:01 | 11 h 22 min |
| 13 | 06:49 | 07:14 | 18:34 | 19:00 | 11 h 20 min |
| 14 | 06:50 | 07:15 | 18:33 | 18:58 | 11 h 18 min |
| 15 | 06:50 | 07:16 | 18:32 | 18:57 | 11 h 16 min |
| 16 | 06:51 | 07:17 | 18:30 | 18:56 | 11 h 14 min |
| 17 | 06:52 | 07:17 | 18:29 | 18:55 | 11 h 12 min |
| 18 | 06:53 | 07:18 | 18:28 | 18:53 | 11 h 09 min |
| 19 | 06:53 | 07:19 | 18:26 | 18:52 | 11 h 07 min |
| 20 | 06:54 | 07:20 | 18:25 | 18:51 | 11 h 05 min |
| 21 | 06:55 | 07:21 | 18:24 | 18:50 | 11 h 03 min |
| 22 | 06:56 | 07:21 | 18:23 | 18:48 | 11 h 01 min |
| 23 | 06:57 | 07:22 | 18:22 | 18:47 | 10 h 59 min |
| 24 | 06:57 | 07:23 | 18:20 | 18:46 | 10 h 57 min |
| 25 | 06:58 | 07:24 | 18:19 | 18:45 | 10 h 55 min |
| 26 | 06:59 | 07:25 | 18:18 | 18:44 | 10 h 53 min |
| 27 | 07:00 | 07:25 | 18:17 | 18:43 | 10 h 51 min |
| 28 | 07:00 | 07:26 | 18:16 | 18:42 | 10 h 50 min |
| 29 | 07:01 | 07:27 | 18:15 | 18:41 | 10 h 48 min |
| 30 | 07:02 | 07:28 | 18:14 | 18:40 | 10 h 46 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 Buenos Aires runs from 11:00 to 16:00: with medium skin and a t-shirt, ~10 min at the best moment is enough.
See the Buenos Aires vitamin D guideCommon questions about the sun in Buenos Aires in April
- Where does the sun set in Buenos Aires in April?
- Mid-April in Buenos Aires: the sun sets in the west, a bearing of 281° measured from true north, which is 11° north of due west. It rises in the east, at 79°. Over the month both points shift 13° north.
- How much daylight does Buenos Aires lose in April?
- Over April the day gets 60 minutes shorter in Buenos Aires: on April 1 the sun rises at 07:05 and sets at 18:51, and on day 30 it rises at 07:28 and sets at 18:14.
- How many hours of daylight does Buenos Aires get in April?
- In mid-April the day lasts 11 h 16 min in Buenos Aires, from sunrise at 07:16 to sunset at 18:32. The table has the day length for each of the 30 days of the month.
- What time does it start to get light in Buenos Aires in April?
- In mid-April the sky starts to get light at 06:50 in Buenos Aires, when the sun is 6° below the horizon, and the sun itself does not rise until 07:16. The “Dawn” column of the table gives that time for every day of the month.
- What time does it get dark in Buenos Aires in April?
- It's not the same time as sunset. In mid-April in Buenos Aires the sun sets at 18:32, but there is still light: civil twilight does not end until 18:57, 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 Buenos Aires 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 Buenos Aires, the minimum for the skin to make vitamin D. At the best moment of the day about 10 minutes are enough for a mid-range skin phototype with a quarter of the body exposed to make around 1000 IU.