The sun, month by month
Sunrise and sunset in Lisbon in May
On May 1 in Lisbon the sun rises at 06:40 and sets at 20:27; on day 31 it rises at 06:14 and sets at 20:54. Over the month the day grows 53 minutes longer.
Where does the sun rise and set in Lisbon in May?
Mid-May in Lisbon: the sun rises in the northeast — a bearing of 65°, measured from true north — and sets in the northwest, at 295°. That is 25° north of due east at sunrise, and the same 25° north of due west at sunset. From the 1st to the last day of the month both points shift 9° 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 Lisbon. Dawn and dusk mark civil twilight.
| Day | Dawn | Sunrise | Sunset | Dusk | Day length |
|---|---|---|---|---|---|
| 1 | 06:11 | 06:40 | 20:27 | 20:56 | 13 h 48 min |
| 2 | 06:10 | 06:39 | 20:28 | 20:57 | 13 h 50 min |
| 3 | 06:09 | 06:37 | 20:29 | 20:58 | 13 h 52 min |
| 4 | 06:07 | 06:36 | 20:30 | 20:59 | 13 h 54 min |
| 5 | 06:06 | 06:35 | 20:31 | 21:00 | 13 h 56 min |
| 6 | 06:05 | 06:34 | 20:32 | 21:01 | 13 h 58 min |
| 7 | 06:04 | 06:33 | 20:33 | 21:02 | 14 h 00 min |
| 8 | 06:03 | 06:32 | 20:34 | 21:03 | 14 h 02 min |
| 9 | 06:01 | 06:31 | 20:35 | 21:05 | 14 h 04 min |
| 10 | 06:00 | 06:30 | 20:36 | 21:06 | 14 h 06 min |
| 11 | 05:59 | 06:29 | 20:37 | 21:07 | 14 h 08 min |
| 12 | 05:58 | 06:28 | 20:38 | 21:08 | 14 h 10 min |
| 13 | 05:57 | 06:27 | 20:39 | 21:09 | 14 h 12 min |
| 14 | 05:56 | 06:26 | 20:40 | 21:10 | 14 h 14 min |
| 15 | 05:55 | 06:25 | 20:41 | 21:11 | 14 h 16 min |
| 16 | 05:54 | 06:24 | 20:42 | 21:12 | 14 h 18 min |
| 17 | 05:53 | 06:23 | 20:43 | 21:13 | 14 h 20 min |
| 18 | 05:52 | 06:22 | 20:44 | 21:14 | 14 h 21 min |
| 19 | 05:51 | 06:21 | 20:44 | 21:15 | 14 h 23 min |
| 20 | 05:50 | 06:21 | 20:45 | 21:16 | 14 h 25 min |
| 21 | 05:49 | 06:20 | 20:46 | 21:17 | 14 h 26 min |
| 22 | 05:49 | 06:19 | 20:47 | 21:17 | 14 h 28 min |
| 23 | 05:48 | 06:18 | 20:48 | 21:18 | 14 h 29 min |
| 24 | 05:47 | 06:18 | 20:49 | 21:19 | 14 h 31 min |
| 25 | 05:46 | 06:17 | 20:50 | 21:20 | 14 h 32 min |
| 26 | 05:46 | 06:17 | 20:50 | 21:21 | 14 h 34 min |
| 27 | 05:45 | 06:16 | 20:51 | 21:22 | 14 h 35 min |
| 28 | 05:44 | 06:15 | 20:52 | 21:23 | 14 h 36 min |
| 29 | 05:44 | 06:15 | 20:53 | 21:24 | 14 h 38 min |
| 30 | 05:43 | 06:14 | 20:53 | 21:24 | 14 h 39 min |
| 31 | 05:43 | 06:14 | 20:54 | 21:25 | 14 h 40 min |
Approximate astronomical values: they can shift a minute or two from year to year.
What about vitamin D in May?
In May, the typical synthesis window in Lisbon runs from 10:00 to 18:00: with medium skin and a t-shirt, ~6 min at the best moment is enough.
See the Lisbon vitamin D guideCommon questions about the sun in Lisbon in May
- Where does the sun set in Lisbon in May?
- Mid-May in Lisbon: the sun sets in the northwest, a bearing of 295° measured from true north, which is 25° north of due west. It rises in the northeast, at 65°. Over the month both points shift 9° north.
- How much daylight does Lisbon gain in May?
- Over May the day gets 53 minutes longer in Lisbon: on May 1 the sun rises at 06:40 and sets at 20:27, and on day 31 it rises at 06:14 and sets at 20:54.
- How many hours of daylight does Lisbon get in May?
- In mid-May the day lasts 14 h 16 min in Lisbon, from sunrise at 06:25 to sunset at 20:41. 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 May?
- In mid-May the sky starts to get light at 05:55 in Lisbon, when the sun is 6° below the horizon, and the sun itself does not rise until 06:25. The “Dawn” column of the table gives that time for every day of the month.
- What time does it get dark in Lisbon in May?
- It's not the same time as sunset. In mid-May in Lisbon the sun sets at 20:41, but there is still light: civil twilight does not end until 21:11, 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 May?
- In mid-May, between 10:00 and 18:00: that is the stretch of the day when the UV index reaches 3 in Lisbon, the minimum for the skin to make vitamin D. At the best moment of the day about 6 minutes are enough for a mid-range skin phototype with a quarter of the body exposed to make around 1000 IU.