The sun, month by month
Sunrise and sunset in Reykjavik in May
On May 1 in Reykjavik the sun rises at 05:02 and sets at 21:48; on day 31 it rises at 03:26 and sets at 23:25. Over the month the day grows 194 minutes longer.
Sunrise04:14
Sunset22:34
Golden hour21:11–22:34
Day length18 h 20 min
Day by day
All times are local to Reykjavik. Dawn and dusk mark civil twilight.
| Day | Dawn | Sunrise | Sunset | Dusk | Day length |
|---|---|---|---|---|---|
| 1 | 03:53 | 05:02 | 21:48 | 22:56 | 16 h 46 min |
| 2 | 03:49 | 04:59 | 21:51 | 23:01 | 16 h 52 min |
| 3 | 03:44 | 04:55 | 21:54 | 23:06 | 16 h 59 min |
| 4 | 03:39 | 04:52 | 21:57 | 23:10 | 17 h 06 min |
| 5 | 03:34 | 04:48 | 22:01 | 23:15 | 17 h 13 min |
| 6 | 03:28 | 04:45 | 22:04 | 23:20 | 17 h 20 min |
| 7 | 03:23 | 04:41 | 22:07 | 23:26 | 17 h 26 min |
| 8 | 03:18 | 04:38 | 22:11 | 23:31 | 17 h 33 min |
| 9 | 03:12 | 04:34 | 22:14 | 23:36 | 17 h 40 min |
| 10 | 03:06 | 04:31 | 22:17 | 23:42 | 17 h 47 min |
| 11 | 03:00 | 04:27 | 22:21 | 23:48 | 17 h 53 min |
| 12 | 02:54 | 04:24 | 22:24 | 23:54 | 17 h 60 min |
| 13 | 02:47 | 04:21 | 22:27 | 00:01 | 18 h 07 min |
| 14 | 02:40 | 04:17 | 22:31 | 00:08 | 18 h 13 min |
| 15 | 02:33 | 04:14 | 22:34 | 00:15 | 18 h 20 min |
| 16 | 02:25 | 04:11 | 22:37 | 00:23 | 18 h 27 min |
| 17 | 02:15 | 04:07 | 22:41 | 00:33 | 18 h 33 min |
| 18 | 02:04 | 04:04 | 22:44 | 00:44 | 18 h 40 min |
| 19 | 01:50 | 04:01 | 22:47 | 00:59 | 18 h 46 min |
| 20 | — | 03:58 | 22:50 | — | 18 h 53 min |
| 21 | — | 03:55 | 22:54 | — | 18 h 59 min |
| 22 | — | 03:52 | 22:57 | — | 19 h 05 min |
| 23 | — | 03:49 | 23:00 | — | 19 h 12 min |
| 24 | — | 03:46 | 23:03 | — | 19 h 18 min |
| 25 | — | 03:43 | 23:07 | — | 19 h 24 min |
| 26 | — | 03:40 | 23:10 | — | 19 h 30 min |
| 27 | — | 03:37 | 23:13 | — | 19 h 36 min |
| 28 | — | 03:34 | 23:16 | — | 19 h 42 min |
| 29 | — | 03:31 | 23:19 | — | 19 h 48 min |
| 30 | — | 03:28 | 23:22 | — | 19 h 54 min |
| 31 | — | 03:26 | 23:25 | — | 19 h 59 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 Reykjavik runs from 12:00 to 16:00: with medium skin and a t-shirt, ~15 min at the best moment is enough.
See the Reykjavik vitamin D guide