The sun, month by month
Sunrise and sunset in Santiago in August
On August 1 in Santiago the sun rises at 07:34 and sets at 18:04; on day 31 it rises at 07:00 and sets at 18:25. Over the month the day grows 55 minutes longer.
In Santiago (-33.5° latitude), August 2026 has 31 days whose sun rises at 07:34 and sets at 18:04 on the 1st, and at 07:00 and 18:25 on the 31th. Mid-month the day lasts 10 h 54 min and the sun reaches 43° above the horizon. Vitamin D synthesis is possible between 11:00 and 15:00, 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 Santiago in August?
Mid-August in Santiago: the sun rises in the east — a bearing of 74°, measured from true north — and sets in the west, at 286°. That is 16° north of due east at sunrise, and the same 16° north of due west at sunset. From the 1st to the last day of the month both points shift 12° 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 Santiago. Dawn and dusk mark civil twilight.
| Day | Dawn | Sunrise | Sunset | Dusk | Day length |
|---|---|---|---|---|---|
| 1 | 07:07 | 07:34 | 18:04 | 18:30 | 10 h 30 min |
| 2 | 07:07 | 07:33 | 18:04 | 18:31 | 10 h 32 min |
| 3 | 07:06 | 07:32 | 18:05 | 18:31 | 10 h 33 min |
| 4 | 07:05 | 07:31 | 18:06 | 18:32 | 10 h 35 min |
| 5 | 07:04 | 07:30 | 18:07 | 18:33 | 10 h 36 min |
| 6 | 07:03 | 07:29 | 18:07 | 18:33 | 10 h 38 min |
| 7 | 07:02 | 07:28 | 18:08 | 18:34 | 10 h 40 min |
| 8 | 07:01 | 07:27 | 18:09 | 18:35 | 10 h 41 min |
| 9 | 07:01 | 07:26 | 18:09 | 18:35 | 10 h 43 min |
| 10 | 07:00 | 07:25 | 18:10 | 18:36 | 10 h 45 min |
| 11 | 06:59 | 07:24 | 18:11 | 18:37 | 10 h 47 min |
| 12 | 06:58 | 07:23 | 18:12 | 18:37 | 10 h 48 min |
| 13 | 06:57 | 07:22 | 18:12 | 18:38 | 10 h 50 min |
| 14 | 06:55 | 07:21 | 18:13 | 18:39 | 10 h 52 min |
| 15 | 06:54 | 07:20 | 18:14 | 18:39 | 10 h 54 min |
| 16 | 06:53 | 07:19 | 18:14 | 18:40 | 10 h 56 min |
| 17 | 06:52 | 07:18 | 18:15 | 18:41 | 10 h 57 min |
| 18 | 06:51 | 07:17 | 18:16 | 18:41 | 10 h 59 min |
| 19 | 06:50 | 07:15 | 18:17 | 18:42 | 11 h 01 min |
| 20 | 06:49 | 07:14 | 18:17 | 18:43 | 11 h 03 min |
| 21 | 06:48 | 07:13 | 18:18 | 18:43 | 11 h 05 min |
| 22 | 06:46 | 07:12 | 18:19 | 18:44 | 11 h 07 min |
| 23 | 06:45 | 07:10 | 18:19 | 18:45 | 11 h 09 min |
| 24 | 06:44 | 07:09 | 18:20 | 18:45 | 11 h 11 min |
| 25 | 06:43 | 07:08 | 18:21 | 18:46 | 11 h 13 min |
| 26 | 06:42 | 07:07 | 18:22 | 18:47 | 11 h 15 min |
| 27 | 06:40 | 07:05 | 18:22 | 18:47 | 11 h 17 min |
| 28 | 06:39 | 07:04 | 18:23 | 18:48 | 11 h 19 min |
| 29 | 06:38 | 07:03 | 18:24 | 18:49 | 11 h 21 min |
| 30 | 06:36 | 07:01 | 18:24 | 18:49 | 11 h 23 min |
| 31 | 06:35 | 07:00 | 18:25 | 18:50 | 11 h 25 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 Santiago runs from 11:00 to 15:00: with medium skin and a t-shirt, ~11 min at the best moment is enough.
See the Santiago vitamin D guideCommon questions about the sun in Santiago in August
- Where does the sun set in Santiago in August?
- Mid-August in Santiago: the sun sets in the west, a bearing of 286° measured from true north, which is 16° north of due west. It rises in the east, at 74°. Over the month both points shift 12° south.
- How much daylight does Santiago gain in August?
- Over August the day gets 55 minutes longer in Santiago: on August 1 the sun rises at 07:34 and sets at 18:04, and on day 31 it rises at 07:00 and sets at 18:25.
- How many hours of daylight does Santiago get in August?
- In mid-August the day lasts 10 h 54 min in Santiago, from sunrise at 07:20 to sunset at 18:14. The table has the day length for each of the 31 days of the month.
- What time does it start to get light in Santiago in August?
- In mid-August the sky starts to get light at 06:54 in Santiago, when the sun is 6° below the horizon, and the sun itself does not rise until 07:20. The “Dawn” column of the table gives that time for every day of the month.
- What time does it get dark in Santiago in August?
- It's not the same time as sunset. In mid-August in Santiago the sun sets at 18:14, but there is still light: civil twilight does not end until 18:39, 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 Santiago in August?
- In mid-August, between 11:00 and 15:00: that is the stretch of the day when the UV index reaches 3 in Santiago, 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.