Daylight duration
We show daylight length in Ottawa during September 2025 and the daylight length for the equinox and solstice for comparing. From September 1, 2025 until September 30, 2025, daylight becomes shorter.
September
Summer Solstice
Autumnal Equinox
Winter Solstice
Sunrise and Sunset
Times of sunrise and sunset in Ottawa during September 2025.
Taking September 1, 2025 as reference, the sun rises at 06:25:56 at 77.73°ENE (East-northeast) and sets at 19:38:36 at 329.44°NW (Northwest). Sunrise and sunset take approximately 3.05 minutes to complete. Read more about sunrise and sunset.
Taking September 15, 2025 as reference, the sun rises at 06:42:09 at 85.15°ENE (East-northeast) and sets at 19:12:48 at 332.59°NW (Northwest). Sunrise and sunset take approximately 3 minutes to complete. Read more about sunrise and sunset.
Sunset
Sunrise
Solar Events
2025-09-22: Autumnal Equinox at 14:19
| 2025 | Daylength | Dawn | Sunset | Solar Noon | Sunrise | Dusk | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep | Length | Difference | Ast. | Nau. | Civ. | Start | Azimuth | End | Start | Azimuth | End | Civ. | Nau. | Ast. | |
| 1 | 13h 12m 40s | - | 04:41 | 05:19 | 05:55 | 06:25 | 78°ENE | 06:28 | 13:02 | 19:35 | 329°NW | 19:38 | 20:08 | 20:44 | 21:22 |
| 2 | 13h 9m 43s | -3m | 04:43 | 05:21 | 05:57 | 06:27 | 78°ENE | 06:30 | 13:02 | 19:33 | 330°NW | 19:36 | 20:06 | 20:42 | 21:19 |
| 3 | 13h 06m 44s | -3m | 04:44 | 05:22 | 05:58 | 06:28 | 79°ENE | 06:31 | 13:02 | 19:31 | 330°NW | 19:34 | 20:04 | 20:40 | 21:17 |
| 4 | 13h 03m 46s | -3m | 04:46 | 05:24 | 05:59 | 06:29 | 79°ENE | 06:32 | 13:01 | 19:30 | 330°NW | 19:33 | 20:02 | 20:38 | 21:15 |
| 5 | 13h 00m 47s | -3m | 04:48 | 05:25 | 06:00 | 06:30 | 80°ENE | 06:33 | 13:01 | 19:28 | 330°NW | 19:31 | 20:00 | 20:36 | 21:13 |
| 6 | 12h 57m 48s | -3m | 04:49 | 05:26 | 06:02 | 06:31 | 80°ENE | 06:34 | 13:01 | 19:26 | 330°NW | 19:29 | 19:59 | 20:34 | 21:11 |
| 7 | 12h 54m 48s | -3m | 04:51 | 05:28 | 06:03 | 06:32 | 81°ENE | 06:35 | 13:00 | 19:24 | 331°NW | 19:27 | 19:57 | 20:32 | 21:09 |
| 8 | 12h 51m 48s | -3m | 04:52 | 05:29 | 06:04 | 06:34 | 81°ENE | 06:37 | 13:00 | 19:22 | 331°NW | 19:25 | 19:55 | 20:30 | 21:06 |
| 9 | 12h 48m 47s | -3m | 04:54 | 05:30 | 06:05 | 06:35 | 82°ENE | 06:38 | 13:00 | 19:20 | 331°NW | 19:23 | 19:53 | 20:28 | 21:04 |
| 10 | 12h 45m 47s | -3m | 04:55 | 05:31 | 06:06 | 06:36 | 82°ENE | 06:39 | 12:59 | 19:19 | 331°NW | 19:22 | 19:51 | 20:26 | 21:02 |
| 11 | 12h 42m 45s | -3m | 04:56 | 05:33 | 06:08 | 06:37 | 83°ENE | 06:40 | 12:59 | 19:17 | 332°NW | 19:20 | 19:49 | 20:24 | 21:00 |
| 12 | 12h 39m 44s | -3m | 04:58 | 05:34 | 06:09 | 06:38 | 84°ENE | 06:41 | 12:58 | 19:15 | 332°NW | 19:18 | 19:47 | 20:22 | 20:58 |
| 13 | 12h 36m 42s | -3m | 04:59 | 05:35 | 06:10 | 06:39 | 84°ENE | 06:42 | 12:58 | 19:13 | 332°NW | 19:16 | 19:45 | 20:20 | 20:56 |
| 14 | 12h 33m 40s | -3m | 05:01 | 05:37 | 06:11 | 06:41 | 85°ENE | 06:44 | 12:58 | 19:11 | 332°NW | 19:14 | 19:43 | 20:18 | 20:54 |
| 15 | 12h 30m 39s | -3m | 05:02 | 05:38 | 06:12 | 06:42 | 85°ENE | 06:45 | 12:57 | 19:09 | 333°NW | 19:12 | 19:41 | 20:16 | 20:51 |
| 16 | 12h 27m 36s | -3.1m | 05:04 | 05:39 | 06:14 | 06:43 | 86°ENE | 06:46 | 12:57 | 19:07 | 333°NW | 19:10 | 19:40 | 20:14 | 20:49 |
| 17 | 12h 24m 34s | -3m | 05:05 | 05:40 | 06:15 | 06:44 | 86°ENE | 06:47 | 12:57 | 19:06 | 333°NW | 19:09 | 19:38 | 20:12 | 20:47 |
| 18 | 12h 21m 31s | -3.1m | 05:06 | 05:42 | 06:16 | 06:45 | 87°ENE | 06:48 | 12:56 | 19:04 | 333°NW | 19:07 | 19:36 | 20:10 | 20:45 |
| 19 | 12h 18m 28s | -3.1m | 05:08 | 05:43 | 06:17 | 06:46 | 87°ENE | 06:49 | 12:56 | 19:02 | 334°NW | 19:05 | 19:34 | 20:08 | 20:43 |
| 20 | 12h 15m 26s | -3m | 05:09 | 05:44 | 06:18 | 06:47 | 88°ENE | 06:50 | 12:56 | 19:00 | 334°NW | 19:03 | 19:32 | 20:06 | 20:41 |
| 21 | 12h 12m 23s | -3.1m | 05:10 | 05:45 | 06:20 | 06:49 | 88°ENE | 06:52 | 12:55 | 18:58 | 334°NW | 19:01 | 19:30 | 20:04 | 20:39 |
| 22 | 12h 9m 20s | -3.1m | 05:12 | 05:47 | 06:21 | 06:50 | 89°ENE | 06:53 | 12:55 | 18:56 | 334°NW | 18:59 | 19:28 | 20:02 | 20:37 |
| 23 | 12h 06m 17s | -3.1m | 05:13 | 05:48 | 06:22 | 06:51 | 90°ENE | 06:54 | 12:55 | 18:54 | 335°NW | 18:57 | 19:26 | 20:00 | 20:35 |
| 24 | 12h 03m 14s | -3.1m | 05:14 | 05:49 | 06:23 | 06:52 | 90°ENE | 06:55 | 12:54 | 18:52 | 335°NW | 18:55 | 19:24 | 19:58 | 20:33 |
| 25 | 12h 00m 12s | -3m | 05:16 | 05:50 | 06:24 | 06:53 | 91°ENE | 06:56 | 12:54 | 18:51 | 335°NW | 18:54 | 19:22 | 19:56 | 20:31 |
| 26 | 11h 57m 9s | -3.1m | 05:17 | 05:52 | 06:26 | 06:55 | 91°ENE | 06:58 | 12:53 | 18:49 | 336°NW | 18:52 | 19:21 | 19:54 | 20:29 |
| 27 | 11h 54m 06s | -3.1m | 05:18 | 05:53 | 06:27 | 06:56 | 92°ENE | 06:59 | 12:53 | 18:47 | 336°NW | 18:50 | 19:19 | 19:52 | 20:27 |
| 28 | 11h 51m 02s | -3.1m | 05:20 | 05:54 | 06:28 | 06:57 | 92°ENE | 07:00 | 12:53 | 18:45 | 336°NW | 18:48 | 19:17 | 19:51 | 20:25 |
| 29 | 11h 48m 00s | -3m | 05:21 | 05:55 | 06:29 | 06:58 | 93°ENE | 07:01 | 12:52 | 18:43 | 336°NW | 18:46 | 19:15 | 19:49 | 20:23 |
| 30 | 11h 44m 57s | -3.1m | 05:22 | 05:57 | 06:30 | 06:59 | 93°ENE | 07:02 | 12:52 | 18:41 | 337°NW | 18:44 | 19:13 | 19:47 | 20:21 |
