Seattle tide calendar, September 2027
High and low tides in local time (America/Los_Angeles), heights in ft above Mean Lower Low Water (MLLW), the US chart datum.
| Day | Tide 1 | Tide 2 | Tide 3 | Tide 4 |
|---|---|---|---|---|
| Wed 1 | High 5:24 AM 10.8 ft | Low 11:46 AM -0.4 ft | High 6:22 PM 12.2 ft | |
| Thu 2 | Low 12:32 AM 2.0 ft | High 6:25 AM 10.8 ft | Low 12:31 PM 0.9 ft | High 6:52 PM 12.2 ft |
| Fri 3 | Low 1:15 AM 0.8 ft | High 7:25 AM 10.6 ft | Low 1:16 PM 2.5 ft | High 7:23 PM 12.0 ft |
| Sat 4 | Low 1:59 AM 0.1 ft | High 8:27 AM 10.3 ft | Low 2:02 PM 4.1 ft | High 7:57 PM 11.5 ft |
| Sun 5 | Low 2:44 AM -0.3 ft | High 9:33 AM 9.9 ft | Low 2:53 PM 5.6 ft | High 8:34 PM 10.9 ft |
| Mon 6 | Low 3:33 AM -0.2 ft | High 10:49 AM 9.7 ft | Low 3:53 PM 6.8 ft | High 9:15 PM 10.2 ft |
| Tue 7 | Low 4:26 AM 0.1 ft | High 12:24 PM 9.6 ft | Low 5:20 PM 7.7 ft | High 10:05 PM 9.4 ft |
| Wed 8 | Low 5:26 AM 0.5 ft | High 2:01 PM 9.9 ft | Low 7:29 PM 7.7 ft | High 11:13 PM 8.8 ft |
| Thu 9 | Low 6:32 AM 0.7 ft | High 3:08 PM 10.3 ft | Low 8:54 PM 7.2 ft | |
| Fri 10 | High 12:34 AM 8.5 ft | Low 7:38 AM 0.8 ft | High 3:53 PM 10.6 ft | Low 9:44 PM 6.5 ft |
| Sat 11 | High 1:50 AM 8.5 ft | Low 8:37 AM 0.7 ft | High 4:27 PM 10.8 ft | Low 10:20 PM 5.9 ft |
| Sun 12 | High 2:51 AM 8.8 ft | Low 9:26 AM 0.7 ft | High 4:53 PM 10.9 ft | Low 10:47 PM 5.3 ft |
| Mon 13 | High 3:41 AM 9.1 ft | Low 10:07 AM 0.7 ft | High 5:12 PM 10.8 ft | Low 11:09 PM 4.6 ft |
| Tue 14 | High 4:24 AM 9.4 ft | Low 10:42 AM 1.0 ft | High 5:28 PM 10.8 ft | Low 11:30 PM 3.9 ft |
| Wed 15 | High 5:04 AM 9.6 ft | Low 11:15 AM 1.5 ft | High 5:44 PM 10.9 ft | Low 11:52 PM 3.0 ft |
| Thu 16 | High 5:44 AM 9.8 ft | Low 11:47 AM 2.2 ft | High 6:02 PM 11.0 ft | |
| Fri 17 | Low 12:19 AM 2.0 ft | High 6:25 AM 10.0 ft | Low 12:20 PM 3.1 ft | High 6:23 PM 11.0 ft |
| Sat 18 | Low 12:50 AM 1.1 ft | High 7:09 AM 10.1 ft | Low 12:55 PM 4.0 ft | High 6:48 PM 11.0 ft |
| Sun 19 | Low 1:25 AM 0.3 ft | High 7:57 AM 10.3 ft | Low 1:34 PM 5.0 ft | High 7:16 PM 10.8 ft |
| Mon 20 | Low 2:04 AM -0.2 ft | High 8:48 AM 10.2 ft | Low 2:17 PM 6.0 ft | High 7:48 PM 10.5 ft |
| Tue 21 | Low 2:49 AM -0.4 ft | High 9:47 AM 10.1 ft | Low 3:07 PM 6.9 ft | High 8:25 PM 10.1 ft |
| Wed 22 | Low 3:41 AM -0.3 ft | High 10:59 AM 9.8 ft | Low 4:12 PM 7.6 ft | High 9:13 PM 9.7 ft |
| Thu 23 | Low 4:41 AM -0.2 ft | High 12:32 PM 9.8 ft | Low 5:42 PM 7.9 ft | High 10:21 PM 9.3 ft |
| Fri 24 | Low 5:50 AM 0.0 ft | High 2:00 PM 10.1 ft | Low 7:23 PM 7.6 ft | High 11:48 PM 9.1 ft |
| Sat 25 | Low 7:00 AM 0.0 ft | High 2:56 PM 10.5 ft | Low 8:35 PM 6.7 ft | |
| Sun 26 | High 1:14 AM 9.2 ft | Low 8:04 AM -0.1 ft | High 3:33 PM 11.0 ft | Low 9:24 PM 5.4 ft |
| Mon 27 | High 2:30 AM 9.6 ft | Low 9:02 AM 0.1 ft | High 4:02 PM 11.4 ft | Low 10:06 PM 3.8 ft |
| Tue 28 | High 3:37 AM 10.1 ft | Low 9:53 AM 0.6 ft | High 4:30 PM 11.8 ft | Low 10:45 PM 2.1 ft |
| Wed 29 | High 4:39 AM 10.6 ft | Low 10:41 AM 1.4 ft | High 4:57 PM 12.0 ft | Low 11:23 PM 0.6 ft |
| Thu 30 | High 5:37 AM 11.0 ft | Low 11:28 AM 2.5 ft | High 5:26 PM 12.0 ft |
Calculated by Marinalo from the Seattle tide station: harmonic constants published by NOAA CO-OPS (public domain). Not for navigation. How we calculate tides.