sun .5deg.comSunrise, Sunset, Solar noon and Sun position here: Ermesinde, Portugal (Porto, Valongo), for period: September 2026. Longest day in month: September 2026: 13 hours, 6 minutes, 53 seconds (2026-09-01). Shortest day in this month: 11 hours, 48 minutes , 31 seconds (2026-09-30).
:September 2026, Solar noon=>Altitude: maximal 57.11° (2026-09-01, 13:34:12). minimal: 46.04° (2026-09-30, 13:24:11)
Table view of above data:
| date | Day | Sunrise | Solar noon | Sunset | Day Length |
| 01 | Tuesday | 07:00:46 | 13:34:12 | 20:07:39 | 13h 6m 53s |
| 02 | Wednesday | 07:01:45 | 13:33:53 | 20:06:01 | 13h 4m 16s |
| 03 | Thursday | 07:02:45 | 13:33:34 | 20:04:22 | 13h 1m 37s |
| 04 | Friday | 07:03:45 | 13:33:14 | 20:02:43 | 12h 58m 58s |
| 05 | Saturday | 07:04:45 | 13:32:54 | 20:01:03 | 12h 56m 18s |
| 06 | Sunday | 07:05:45 | 13:32:34 | 19:59:23 | 12h 53m 38s |
| 07 | Monday | 07:06:44 | 13:32:13 | 19:57:42 | 12h 50m 58s |
| 08 | Tuesday | 07:07:44 | 13:31:52 | 19:56:01 | 12h 48m 17s |
| 09 | Wednesday | 07:08:44 | 13:31:32 | 19:54:19 | 12h 45m 35s |
| 10 | Thursday | 07:09:44 | 13:31:11 | 19:52:38 | 12h 42m 54s |
| 11 | Friday | 07:10:43 | 13:30:50 | 19:50:56 | 12h 40m 13s |
| 12 | Saturday | 07:11:43 | 13:30:28 | 19:49:14 | 12h 37m 31s |
| 13 | Sunday | 07:12:43 | 13:30:07 | 19:47:31 | 12h 34m 48s |
| 14 | Monday | 07:13:43 | 13:29:46 | 19:45:49 | 12h 32m 6s |
| 15 | Tuesday | 07:14:43 | 13:29:24 | 19:44:06 | 12h 29m 23s |
| 16 | Wednesday | 07:15:43 | 13:29:03 | 19:42:23 | 12h 26m 40s |
| 17 | Thursday | 07:16:43 | 13:28:41 | 19:40:40 | 12h 23m 57s |
| 18 | Friday | 07:17:43 | 13:28:20 | 19:38:57 | 12h 21m 14s |
| 19 | Saturday | 07:18:43 | 13:27:59 | 19:37:14 | 12h 18m 31s |
| 20 | Sunday | 07:19:43 | 13:27:37 | 19:35:31 | 12h 15m 48s |
| 21 | Monday | 07:20:44 | 13:27:16 | 19:33:48 | 12h 13m 4s |
| 22 | Tuesday | 07:21:45 | 13:26:55 | 19:32:05 | 12h 10m 20s |
| 23 | Wednesday | 07:22:45 | 13:26:34 | 19:30:22 | 12h 7m 37s |
| 24 | Thursday | 07:23:46 | 13:26:13 | 19:28:39 | 12h 4m 53s |
| 25 | Friday | 07:24:47 | 13:25:52 | 19:26:57 | 12h 2m 10s |
| 26 | Saturday | 07:25:48 | 13:25:31 | 19:25:14 | 11h 59m 26s |
| 27 | Sunday | 07:26:50 | 13:25:11 | 19:23:32 | 11h 56m 42s |
| 28 | Monday | 07:27:51 | 13:24:51 | 19:21:50 | 11h 53m 59s |
| 29 | Tuesday | 07:28:53 | 13:24:31 | 19:20:08 | 11h 51m 15s |
| 30 | Wednesday | 07:29:55 | 13:24:11 | 19:18:26 | 11h 48m 31s |