sun .5deg.comSunrise, Sunset, Solar noon and Sun position here: Letterkenny, Ireland (Ulster, County Donegal), for period: September 2026. Longest day in month: September 2026: 13 hours, 46 minutes, 32 seconds (2026-09-01). Shortest day in this month: 11 hours, 38 minutes , 27 seconds (2026-09-30).
:September 2026, Solar noon=>Altitude: maximal 43.38° (2026-09-01, 13:30:55). minimal: 32.31° (2026-09-30, 13:20:54)
Table view of above data:
| date | Day | Sunrise | Solar noon | Sunset | Day Length |
| 01 | Tuesday | 06:37:39 | 13:30:55 | 20:24:11 | 13h 46m 32s |
| 02 | Wednesday | 06:39:31 | 13:30:36 | 20:21:41 | 13h 42m 10s |
| 03 | Thursday | 06:41:22 | 13:30:17 | 20:19:11 | 13h 37m 49s |
| 04 | Friday | 06:43:14 | 13:29:57 | 20:16:40 | 13h 33m 26s |
| 05 | Saturday | 06:45:05 | 13:29:37 | 20:14:09 | 13h 29m 4s |
| 06 | Sunday | 06:46:56 | 13:29:17 | 20:11:37 | 13h 24m 41s |
| 07 | Monday | 06:48:48 | 13:28:56 | 20:09:05 | 13h 20m 17s |
| 08 | Tuesday | 06:50:39 | 13:28:35 | 20:06:32 | 13h 15m 53s |
| 09 | Wednesday | 06:52:30 | 13:28:15 | 20:03:59 | 13h 11m 29s |
| 10 | Thursday | 06:54:21 | 13:27:54 | 20:01:26 | 13h 7m 5s |
| 11 | Friday | 06:56:12 | 13:27:33 | 19:58:53 | 13h 2m 41s |
| 12 | Saturday | 06:58:04 | 13:27:11 | 19:56:19 | 12h 58m 15s |
| 13 | Sunday | 06:59:55 | 13:26:50 | 19:53:45 | 12h 53m 50s |
| 14 | Monday | 07:01:46 | 13:26:29 | 19:51:11 | 12h 49m 25s |
| 15 | Tuesday | 07:03:37 | 13:26:07 | 19:48:37 | 12h 45m 0s |
| 16 | Wednesday | 07:05:29 | 13:25:46 | 19:46:03 | 12h 40m 34s |
| 17 | Thursday | 07:07:20 | 13:25:24 | 19:43:29 | 12h 36m 9s |
| 18 | Friday | 07:09:12 | 13:25:03 | 19:40:54 | 12h 31m 42s |
| 19 | Saturday | 07:11:03 | 13:24:42 | 19:38:20 | 12h 27m 17s |
| 20 | Sunday | 07:12:55 | 13:24:20 | 19:35:45 | 12h 22m 50s |
| 21 | Monday | 07:14:47 | 13:23:59 | 19:33:11 | 12h 18m 24s |
| 22 | Tuesday | 07:16:39 | 13:23:38 | 19:30:37 | 12h 13m 58s |
| 23 | Wednesday | 07:18:31 | 13:23:17 | 19:28:03 | 12h 9m 32s |
| 24 | Thursday | 07:20:23 | 13:22:56 | 19:25:28 | 12h 5m 5s |
| 25 | Friday | 07:22:15 | 13:22:35 | 19:22:54 | 12h 0m 39s |
| 26 | Saturday | 07:24:08 | 13:22:14 | 19:20:21 | 11h 56m 13s |
| 27 | Sunday | 07:26:00 | 13:21:54 | 19:17:47 | 11h 51m 47s |
| 28 | Monday | 07:27:53 | 13:21:33 | 19:15:14 | 11h 47m 21s |
| 29 | Tuesday | 07:29:47 | 13:21:13 | 19:12:40 | 11h 42m 53s |
| 30 | Wednesday | 07:31:40 | 13:20:54 | 19:10:07 | 11h 38m 27s |