The sun, month by month
Sunrise and sunset in Bogota in September
On September 1 in Bogota the sun rises at 05:50 and sets at 18:02; on day 30 it rises at 05:43 and sets at 17:48. Over the month the day gets 8 minutes shorter.
In Bogota (4.7° latitude), September 2026 has 30 days whose sun rises at 05:50 and sets at 18:02 on the 1st, and at 05:43 and 17:48 on the 30th. Mid-month the day lasts 12 h 08 min and the sun reaches 87° above the horizon. Vitamin D synthesis is possible between 08:00 and 17:00, which is when the UV index reaches at least 3: at the best moment of the day about 3 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 Bogota in September?
Mid-September in Bogota: the sun rises in the east — a bearing of 88°, measured from true north — and sets in the west, at 272°. That is 2° north of due east at sunrise, and the same 2° 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 Bogota. Dawn and dusk mark civil twilight.
| Day | Dawn | Sunrise | Sunset | Dusk | Day length |
|---|---|---|---|---|---|
| 1 | 05:29 | 05:50 | 18:02 | 18:23 | 12 h 12 min |
| 2 | 05:29 | 05:50 | 18:01 | 18:22 | 12 h 12 min |
| 3 | 05:29 | 05:49 | 18:01 | 18:22 | 12 h 11 min |
| 4 | 05:28 | 05:49 | 18:00 | 18:21 | 12 h 11 min |
| 5 | 05:28 | 05:49 | 18:00 | 18:21 | 12 h 11 min |
| 6 | 05:28 | 05:49 | 17:59 | 18:20 | 12 h 11 min |
| 7 | 05:28 | 05:49 | 17:59 | 18:20 | 12 h 10 min |
| 8 | 05:28 | 05:48 | 17:58 | 18:19 | 12 h 10 min |
| 9 | 05:27 | 05:48 | 17:58 | 18:19 | 12 h 10 min |
| 10 | 05:27 | 05:48 | 17:57 | 18:18 | 12 h 09 min |
| 11 | 05:27 | 05:48 | 17:57 | 18:18 | 12 h 09 min |
| 12 | 05:27 | 05:47 | 17:56 | 18:17 | 12 h 09 min |
| 13 | 05:26 | 05:47 | 17:56 | 18:17 | 12 h 09 min |
| 14 | 05:26 | 05:47 | 17:55 | 18:16 | 12 h 08 min |
| 15 | 05:26 | 05:47 | 17:55 | 18:16 | 12 h 08 min |
| 16 | 05:26 | 05:46 | 17:54 | 18:15 | 12 h 08 min |
| 17 | 05:25 | 05:46 | 17:54 | 18:15 | 12 h 08 min |
| 18 | 05:25 | 05:46 | 17:53 | 18:14 | 12 h 07 min |
| 19 | 05:25 | 05:46 | 17:53 | 18:14 | 12 h 07 min |
| 20 | 05:25 | 05:46 | 17:52 | 18:13 | 12 h 07 min |
| 21 | 05:25 | 05:45 | 17:52 | 18:13 | 12 h 07 min |
| 22 | 05:24 | 05:45 | 17:51 | 18:12 | 12 h 06 min |
| 23 | 05:24 | 05:45 | 17:51 | 18:12 | 12 h 06 min |
| 24 | 05:24 | 05:45 | 17:50 | 18:11 | 12 h 06 min |
| 25 | 05:24 | 05:44 | 17:50 | 18:11 | 12 h 05 min |
| 26 | 05:23 | 05:44 | 17:49 | 18:10 | 12 h 05 min |
| 27 | 05:23 | 05:44 | 17:49 | 18:10 | 12 h 05 min |
| 28 | 05:23 | 05:44 | 17:48 | 18:09 | 12 h 05 min |
| 29 | 05:23 | 05:44 | 17:48 | 18:09 | 12 h 04 min |
| 30 | 05:23 | 05:43 | 17:48 | 18:08 | 12 h 04 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 Bogota runs from 08:00 to 17:00: with medium skin and a t-shirt, ~3 min at the best moment is enough.
See the Bogota vitamin D guideCommon questions about the sun in Bogota in September
- Where does the sun set in Bogota in September?
- Mid-September in Bogota: the sun sets in the west, a bearing of 272° measured from true north, which is 2° north of due west. It rises in the east, at 88°. Over the month both points shift 12° south.
- How much daylight does Bogota lose in September?
- Over September the day gets 8 minutes shorter in Bogota: on September 1 the sun rises at 05:50 and sets at 18:02, and on day 30 it rises at 05:43 and sets at 17:48.
- How many hours of daylight does Bogota get in September?
- In mid-September the day lasts 12 h 08 min in Bogota, from sunrise at 05:47 to sunset at 17:55. The table has the day length for each of the 30 days of the month.
- What time does it start to get light in Bogota in September?
- In mid-September the sky starts to get light at 05:26 in Bogota, when the sun is 6° below the horizon, and the sun itself does not rise until 05:47. The “Dawn” column of the table gives that time for every day of the month.
- What time does it get dark in Bogota in September?
- It's not the same time as sunset. In mid-September in Bogota the sun sets at 17:55, but there is still light: civil twilight does not end until 18:16, 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 Bogota in September?
- In mid-September, between 08:00 and 17:00: that is the stretch of the day when the UV index reaches 3 in Bogota, the minimum for the skin to make vitamin D. At the best moment of the day about 3 minutes are enough for a mid-range skin phototype with a quarter of the body exposed to make around 1000 IU.