sun .5deg.comSunrise, Sunset, Solar noon and Sun position here: Rio Tinto, Portugal (Porto, Gondomar), for period: September 2026. Longest day in month: September 2026: 13 hours, 6 minutes, 49 seconds (2026-09-01). Shortest day in this month: 11 hours, 48 minutes , 33 seconds (2026-09-30).
:September 2026, Solar noon=>Altitude: maximal 57.15° (2026-09-01, 13:34:13). minimal: 46.08° (2026-09-30, 13:24:12)
Table view of above data:
| date | Day | Sunrise | Solar noon | Sunset | Day Length |
| 01 | Tuesday | 07:00:49 | 13:34:13 | 20:07:38 | 13h 6m 49s |
| 02 | Wednesday | 07:01:49 | 13:33:54 | 20:05:59 | 13h 4m 10s |
| 03 | Thursday | 07:02:49 | 13:33:35 | 20:04:21 | 13h 1m 32s |
| 04 | Friday | 07:03:48 | 13:33:15 | 20:02:41 | 12h 58m 53s |
| 05 | Saturday | 07:04:48 | 13:32:55 | 20:01:02 | 12h 56m 14s |
| 06 | Sunday | 07:05:48 | 13:32:34 | 19:59:21 | 12h 53m 33s |
| 07 | Monday | 07:06:47 | 13:32:14 | 19:57:41 | 12h 50m 54s |
| 08 | Tuesday | 07:07:47 | 13:31:53 | 19:56:00 | 12h 48m 13s |
| 09 | Wednesday | 07:08:46 | 13:31:33 | 19:54:19 | 12h 45m 33s |
| 10 | Thursday | 07:09:46 | 13:31:12 | 19:52:37 | 12h 42m 51s |
| 11 | Friday | 07:10:46 | 13:30:50 | 19:50:55 | 12h 40m 9s |
| 12 | Saturday | 07:11:45 | 13:30:29 | 19:49:13 | 12h 37m 28s |
| 13 | Sunday | 07:12:45 | 13:30:08 | 19:47:31 | 12h 34m 46s |
| 14 | Monday | 07:13:45 | 13:29:47 | 19:45:48 | 12h 32m 3s |
| 15 | Tuesday | 07:14:45 | 13:29:25 | 19:44:06 | 12h 29m 21s |
| 16 | Wednesday | 07:15:44 | 13:29:04 | 19:42:23 | 12h 26m 39s |
| 17 | Thursday | 07:16:44 | 13:28:42 | 19:40:40 | 12h 23m 56s |
| 18 | Friday | 07:17:44 | 13:28:21 | 19:38:57 | 12h 21m 13s |
| 19 | Saturday | 07:18:45 | 13:27:59 | 19:37:14 | 12h 18m 29s |
| 20 | Sunday | 07:19:45 | 13:27:38 | 19:35:31 | 12h 15m 46s |
| 21 | Monday | 07:20:45 | 13:27:17 | 19:33:48 | 12h 13m 3s |
| 22 | Tuesday | 07:21:46 | 13:26:56 | 19:32:06 | 12h 10m 20s |
| 23 | Wednesday | 07:22:46 | 13:26:34 | 19:30:23 | 12h 7m 37s |
| 24 | Thursday | 07:23:47 | 13:26:14 | 19:28:40 | 12h 4m 53s |
| 25 | Friday | 07:24:48 | 13:25:53 | 19:26:58 | 12h 2m 10s |
| 26 | Saturday | 07:25:49 | 13:25:32 | 19:25:15 | 11h 59m 26s |
| 27 | Sunday | 07:26:50 | 13:25:12 | 19:23:33 | 11h 56m 43s |
| 28 | Monday | 07:27:52 | 13:24:51 | 19:21:51 | 11h 53m 59s |
| 29 | Tuesday | 07:28:53 | 13:24:31 | 19:20:09 | 11h 51m 16s |
| 30 | Wednesday | 07:29:55 | 13:24:12 | 19:18:28 | 11h 48m 33s |