The sun, month by month
Sunrise and sunset in Lisbon in December
On December 1 in Lisbon the sun rises at 07:38 and sets at 17:15; on day 31 it rises at 07:55 and sets at 17:25. Over the month the day gets 8 minutes shorter.
Where does the sun rise and set in Lisbon in December?
Mid-December in Lisbon: the sun rises in the southeast — a bearing of 120°, measured from true north — and sets in the southwest, at 240°. That is 30° south of due east at sunrise, and the same 30° south of due west at sunset. From the 1st to the last day of the month both points barely move.
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 Lisbon. Dawn and dusk mark civil twilight.
| Day | Dawn | Sunrise | Sunset | Dusk | Day length |
|---|---|---|---|---|---|
| 1 | 07:08 | 07:38 | 17:15 | 17:45 | 9 h 38 min |
| 2 | 07:09 | 07:38 | 17:15 | 17:45 | 9 h 37 min |
| 3 | 07:10 | 07:39 | 17:15 | 17:45 | 9 h 36 min |
| 4 | 07:11 | 07:40 | 17:15 | 17:45 | 9 h 35 min |
| 5 | 07:11 | 07:41 | 17:15 | 17:45 | 9 h 34 min |
| 6 | 07:12 | 07:42 | 17:15 | 17:45 | 9 h 33 min |
| 7 | 07:13 | 07:43 | 17:15 | 17:45 | 9 h 32 min |
| 8 | 07:14 | 07:43 | 17:15 | 17:45 | 9 h 32 min |
| 9 | 07:14 | 07:44 | 17:15 | 17:45 | 9 h 31 min |
| 10 | 07:15 | 07:45 | 17:15 | 17:45 | 9 h 30 min |
| 11 | 07:16 | 07:46 | 17:15 | 17:45 | 9 h 30 min |
| 12 | 07:17 | 07:46 | 17:16 | 17:45 | 9 h 29 min |
| 13 | 07:17 | 07:47 | 17:16 | 17:46 | 9 h 29 min |
| 14 | 07:18 | 07:48 | 17:16 | 17:46 | 9 h 28 min |
| 15 | 07:18 | 07:48 | 17:16 | 17:46 | 9 h 28 min |
| 16 | 07:19 | 07:49 | 17:17 | 17:47 | 9 h 28 min |
| 17 | 07:20 | 07:50 | 17:17 | 17:47 | 9 h 28 min |
| 18 | 07:20 | 07:50 | 17:17 | 17:47 | 9 h 27 min |
| 19 | 07:21 | 07:51 | 17:18 | 17:48 | 9 h 27 min |
| 20 | 07:21 | 07:51 | 17:18 | 17:48 | 9 h 27 min |
| 21 | 07:22 | 07:52 | 17:19 | 17:49 | 9 h 27 min |
| 22 | 07:22 | 07:52 | 17:19 | 17:49 | 9 h 27 min |
| 23 | 07:23 | 07:52 | 17:20 | 17:50 | 9 h 27 min |
| 24 | 07:23 | 07:53 | 17:20 | 17:50 | 9 h 27 min |
| 25 | 07:23 | 07:53 | 17:21 | 17:51 | 9 h 28 min |
| 26 | 07:24 | 07:54 | 17:21 | 17:51 | 9 h 28 min |
| 27 | 07:24 | 07:54 | 17:22 | 17:52 | 9 h 28 min |
| 28 | 07:24 | 07:54 | 17:23 | 17:53 | 9 h 29 min |
| 29 | 07:25 | 07:54 | 17:23 | 17:53 | 9 h 29 min |
| 30 | 07:25 | 07:55 | 17:24 | 17:54 | 9 h 30 min |
| 31 | 07:25 | 07:55 | 17:25 | 17:55 | 9 h 30 min |
Approximate astronomical values: they can shift a minute or two from year to year.
What about vitamin D in December?
In December the sun doesn't climb high enough in Lisbon for vitamin D synthesis: the season to mind your diet or consider supplementation.
See the Lisbon vitamin D guideCommon questions about the sun in Lisbon in December
- Where does the sun set in Lisbon in December?
- Mid-December in Lisbon: the sun sets in the southwest, a bearing of 240° measured from true north, which is 30° south of due west. It rises in the southeast, at 120°. Over the month both points barely move.
- How much daylight does Lisbon lose in December?
- Over December the day gets 8 minutes shorter in Lisbon: on December 1 the sun rises at 07:38 and sets at 17:15, and on day 31 it rises at 07:55 and sets at 17:25.
- How many hours of daylight does Lisbon get in December?
- In mid-December the day lasts 9 h 28 min in Lisbon, from sunrise at 07:48 to sunset at 17:16. The table has the day length for each of the 31 days of the month.
- What time does it start to get light in Lisbon in December?
- In mid-December the sky starts to get light at 07:18 in Lisbon, when the sun is 6° below the horizon, and the sun itself does not rise until 07:48. The “Dawn” column of the table gives that time for every day of the month.
- What time does it get dark in Lisbon in December?
- It's not the same time as sunset. In mid-December in Lisbon the sun sets at 17:16, but there is still light: civil twilight does not end until 17:46, 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 Lisbon in December?
- At no time of day. Not even at midday on December 15 does the UV index reach 3 in Lisbon, and below that minimum the skin makes no vitamin D, however long you stay out. In December it is the season to mind your diet or consider supplementation.