The sun, month by month
Sunrise and sunset in Mexico City in December
On December 1 in Mexico City the sun rises at 06:55 and sets at 17:57; on day 31 it rises at 07:10 and sets at 18:09. Over the month the day barely changes.
Sunrise07:03
Sunset18:01
Golden hour17:29–18:01
Day length10 h 58 min
Day by day
All times are local to Mexico City. Dawn and dusk mark civil twilight.
| Day | Dawn | Sunrise | Sunset | Dusk | Day length |
|---|---|---|---|---|---|
| 1 | 06:32 | 06:55 | 17:57 | 18:21 | 11 h 02 min |
| 2 | 06:32 | 06:56 | 17:57 | 18:21 | 11 h 01 min |
| 3 | 06:33 | 06:57 | 17:58 | 18:21 | 11 h 01 min |
| 4 | 06:34 | 06:57 | 17:58 | 18:22 | 11 h 01 min |
| 5 | 06:34 | 06:58 | 17:58 | 18:22 | 11 h 00 min |
| 6 | 06:35 | 06:58 | 17:58 | 18:22 | 10 h 60 min |
| 7 | 06:35 | 06:59 | 17:59 | 18:22 | 10 h 60 min |
| 8 | 06:36 | 06:60 | 17:59 | 18:23 | 10 h 59 min |
| 9 | 06:36 | 07:00 | 17:59 | 18:23 | 10 h 59 min |
| 10 | 06:37 | 07:01 | 17:59 | 18:23 | 10 h 59 min |
| 11 | 06:37 | 07:01 | 17:60 | 18:24 | 10 h 58 min |
| 12 | 06:38 | 07:02 | 18:00 | 18:24 | 10 h 58 min |
| 13 | 06:38 | 07:02 | 18:00 | 18:24 | 10 h 58 min |
| 14 | 06:39 | 07:03 | 18:01 | 18:25 | 10 h 58 min |
| 15 | 06:40 | 07:03 | 18:01 | 18:25 | 10 h 58 min |
| 16 | 06:40 | 07:04 | 18:02 | 18:26 | 10 h 58 min |
| 17 | 06:41 | 07:04 | 18:02 | 18:26 | 10 h 58 min |
| 18 | 06:41 | 07:05 | 18:02 | 18:26 | 10 h 57 min |
| 19 | 06:42 | 07:05 | 18:03 | 18:27 | 10 h 57 min |
| 20 | 06:42 | 07:06 | 18:03 | 18:27 | 10 h 57 min |
| 21 | 06:43 | 07:06 | 18:04 | 18:28 | 10 h 57 min |
| 22 | 06:43 | 07:07 | 18:04 | 18:28 | 10 h 57 min |
| 23 | 06:43 | 07:07 | 18:05 | 18:29 | 10 h 57 min |
| 24 | 06:44 | 07:08 | 18:05 | 18:29 | 10 h 58 min |
| 25 | 06:44 | 07:08 | 18:06 | 18:30 | 10 h 58 min |
| 26 | 06:45 | 07:09 | 18:06 | 18:30 | 10 h 58 min |
| 27 | 06:45 | 07:09 | 18:07 | 18:31 | 10 h 58 min |
| 28 | 06:46 | 07:09 | 18:07 | 18:31 | 10 h 58 min |
| 29 | 06:46 | 07:10 | 18:08 | 18:32 | 10 h 58 min |
| 30 | 06:46 | 07:10 | 18:09 | 18:32 | 10 h 58 min |
| 31 | 06:47 | 07:10 | 18:09 | 18:33 | 10 h 59 min |
Approximate astronomical values: they can shift a minute or two from year to year.
What about vitamin D in December?
In December, the typical synthesis window in Mexico City runs from 10:00 to 16:00: with medium skin and a t-shirt, ~7 min at the best moment is enough.
See the Mexico City vitamin D guide