Kelp Island Passage, Duke Island Tide Chart & Fishing Times
Tide times, heights, and solunar bite windows for Kelp Island Passage, Duke Island, Alaska — August 2026 & September 2026. Every value is computed from NOAA harmonic constituents, the same offline engine that powers the Ebb app.
NOAA Station
9450142
Type
Subordinate (offset)
Coordinates
54.877, -131.300
Time Zone
Anchorage
Sun, moon & bite windows
Sunday, August 2
Sunday, August 2
Sunrise 4:56 AM · Sunset 8:44 PM · Moon Waning Gibbous (83% lit)
High 3:20a · 14.3 ftLow 9:40a · -0.7 ftHigh 3:59p · 14.1 ftLow 10:05p · 1.5 ft
Major window ★★★
2:45a – 4:45a
Minor window ★★★
9:29a – 10:29a
Major window ★★★
2:55p – 4:55p
Minor window ★★★
9:15p – 10:15p
Best fishing days — August 2026
Top solunar bite days this month
Ranked by solunar quality — days when the major feeding windows stack up with sunrise, sunset, or a strong tide swing.
Saturday, Aug 1 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 2:02a–4:02a, 2:12p–4:12p
Sunday, Aug 2 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 2:45a–4:45a, 2:55p–4:55p
Monday, Aug 3 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 3:28a–5:28a, 3:39p–5:39p
Thursday, Aug 6 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 5:55a–7:55a, 6:17p–8:17p
Wednesday, Aug 19 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 5:02a–7:02a, 5:20p–7:20p
Thursday, Aug 20 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 5:50a–7:50a, 6:12p–8:12p
Tide table — August 2026
Kelp Island Passage, Duke Island tides, August 2026
All high and low tides for Kelp Island Passage, Duke Island, in local time (Anchorage). Heights are feet above Mean Lower Low Water (MLLW).
| Day | Tides (height above MLLW) | Sunrise / Sunset | |
|---|---|---|---|
| 1 | Sat | H 2:44a 14.8 ftL 9:10a -1.4 ftH 3:29p 13.9 ftL 9:25p 1.7 ft | 4:55a / 8:46p |
| 2 | Sun | H 3:20a 14.3 ftL 9:40a -0.7 ftH 3:59p 14.1 ftL 10:05p 1.5 ft | 4:56a / 8:44p |
| 3 | Mon | H 4:01a 13.4 ftL 10:11a 0.2 ftH 4:31p 14.2 ftL 10:50p 1.4 ft | 4:58a / 8:42p |
| 4 | Tue | H 4:45a 12.4 ftL 10:47a 1.4 ftH 5:08p 14.1 ftL 11:42p 1.5 ft | 5a / 8:40p |
| 5 | Wed | H 5:40a 11.3 ftL 11:30a 2.8 ftH 5:54p 13.9 ft | 5:02a / 8:38p |
| 6 | Thu | L 12:46a 1.7 ftH 6:49a 10.3 ftL 12:25p 4.2 ftH 6:53p 13.6 ft | 5:04a / 8:36p |
| 7 | Fri | L 2:04a 1.6 ftH 8:19a 9.8 ftL 1:39p 5.2 ftH 8:08p 13.5 ft | 5:05a / 8:34p |
| 8 | Sat | L 3:27a 1.0 ftH 9:52a 10.2 ftL 3:11p 5.4 ftH 9:29p 14.0 ft | 5:07a / 8:32p |
| 9 | Sun | L 4:39a -0.2 ftH 11:05a 11.3 ftL 4:33p 4.8 ftH 10:41p 14.8 ft | 5:09a / 8:30p |
| 10 | Mon | L 5:38a -1.4 ftH 12:01p 12.5 ftL 5:38p 3.6 ftH 11:42p 15.7 ft | 5:11a / 8:28p |
| 11 | Tue | L 6:27a -2.5 ftH 12:48p 13.7 ftL 6:32p 2.2 ft | 5:13a / 8:26p |
| 12 | Wed | H 12:35a 16.5 ftL 7:12a -3.1 ftH 1:30p 14.7 ftL 7:20p 1.1 ft | 5:15a / 8:23p |
| 13 | Thu | H 1:23a 16.8 ftL 7:52a -3.3 ftH 2:08p 15.4 ftL 8:05p 0.2 ft | 5:16a / 8:21p |
| 14 | Fri | H 2:08a 16.6 ftL 8:31a -2.9 ftH 2:45p 15.7 ftL 8:48p -0.2 ft | 5:18a / 8:19p |
| 15 | Sat | H 2:51a 15.9 ftL 9:07a -2.0 ftH 3:20p 15.7 ftL 9:30p -0.2 ft | 5:20a / 8:17p |
| 16 | Sun | H 3:33a 14.8 ftL 9:43a -0.6 ftH 3:55p 15.3 ftL 10:13p 0.2 ft | 5:22a / 8:15p |
| 17 | Mon | H 4:16a 13.4 ftL 10:18a 0.9 ftH 4:29p 14.6 ftL 10:57p 1.0 ft | 5:24a / 8:12p |
| 18 | Tue | H 5:01a 12.0 ftL 10:54a 2.6 ftH 5:05p 13.7 ftL 11:46p 1.9 ft | 5:26a / 8:10p |
| 19 | Wed | H 5:53a 10.6 ftL 11:34a 4.3 ftH 5:47p 12.8 ft | 5:28a / 8:08p |
| 20 | Thu | L 12:47a 2.8 ftH 7:02a 9.5 ftL 12:27p 5.7 ftH 6:41p 11.9 ft | 5:29a / 8:05p |
| 21 | Fri | L 2:07a 3.3 ftH 8:41a 9.1 ftL 1:47p 6.7 ftH 7:58p 11.4 ft | 5:31a / 8:03p |
| 22 | Sat | L 3:34a 3.2 ftH 10:15a 9.5 ftL 3:25p 6.7 ftH 9:22p 11.6 ft | 5:33a / 8:01p |
| 23 | Sun | L 4:42a 2.4 ftH 11:14a 10.3 ftL 4:38p 6.0 ftH 10:29p 12.3 ft | 5:35a / 7:58p |
| 24 | Mon | L 5:30a 1.5 ftH 11:55a 11.2 ftL 5:28p 5.0 ftH 11:20p 13.1 ft | 5:37a / 7:56p |
| 25 | Tue | L 6:07a 0.5 ftH 12:28p 12.1 ftL 6:08p 3.8 ft | 5:39a / 7:53p |
| 26 | Wed | H 12:01a 14.0 ftL 6:40a -0.3 ftH 12:57p 13.0 ftL 6:44p 2.7 ft | 5:41a / 7:51p |
| 27 | Thu | H 12:38a 14.6 ftL 7:09a -0.9 ftH 1:25p 13.8 ftL 7:18p 1.7 ft | 5:42a / 7:48p |
| 28 | Fri | H 1:14a 15.1 ftL 7:38a -1.2 ftH 1:53p 14.5 ftL 7:51p 0.8 ft | 5:44a / 7:46p |
| 29 | Sat | H 1:49a 15.2 ftL 8:07a -1.2 ftH 2:20p 15.1 ftL 8:26p 0.1 ft | 5:46a / 7:44p |
| 30 | Sun | H 2:25a 15.1 ftL 8:36a -0.7 ftH 2:49p 15.4 ftL 9:02p -0.3 ft | 5:48a / 7:41p |
| 31 | Mon | H 3:03a 14.6 ftL 9:07a 0.0 ftH 3:19p 15.5 ftL 9:41p -0.3 ft | 5:50a / 7:39p |
Last QuarterAug 5
New MoonAug 12
First QuarterAug 19
Full MoonAug 27
Tide table — September 2026
Kelp Island Passage, Duke Island tides, September 2026
| Day | Tides (height above MLLW) | Sunrise / Sunset | |
|---|---|---|---|
| 1 | Tue | H 3:44a 13.8 ftL 9:40a 1.1 ftH 3:52p 15.3 ftL 10:25p 0.0 ft | 5:52a / 7:36p |
| 2 | Wed | H 4:30a 12.7 ftL 10:17a 2.5 ftH 4:31p 14.9 ftL 11:17p 0.6 ft | 5:54a / 7:34p |
| 3 | Thu | H 5:25a 11.4 ftL 11:02a 3.9 ftH 5:20p 14.1 ft | 5:55a / 7:31p |
| 4 | Fri | L 12:23a 1.3 ftH 6:39a 10.4 ftL 12:03p 5.3 ftH 6:27p 13.3 ft | 5:57a / 7:29p |
| 5 | Sat | L 1:47a 1.7 ftH 8:18a 10.0 ftL 1:35p 6.1 ftH 7:58p 13.0 ft | 5:59a / 7:26p |
| 6 | Sun | L 3:16a 1.3 ftH 9:50a 10.8 ftL 3:19p 5.7 ftH 9:29p 13.4 ft | 6:01a / 7:24p |
| 7 | Mon | L 4:28a 0.3 ftH 10:55a 12.0 ftL 4:38p 4.4 ftH 10:40p 14.4 ft | 6:03a / 7:21p |
| 8 | Tue | L 5:23a -0.8 ftH 11:44a 13.3 ftL 5:36p 2.7 ftH 11:37p 15.3 ft | 6:05a / 7:19p |
| 9 | Wed | L 6:08a -1.6 ftH 12:25p 14.5 ftL 6:23p 1.2 ft | 6:07a / 7:16p |
| 10 | Thu | H 12:26a 15.9 ftL 6:49a -1.9 ftH 1:02p 15.5 ftL 7:06p -0.1 ft | 6:08a / 7:13p |
| 11 | Fri | H 1:11a 16.1 ftL 7:26a -1.8 ftH 1:36p 16.1 ftL 7:46p -0.9 ft | 6:10a / 7:11p |
| 12 | Sat | H 1:52a 15.9 ftL 8a -1.3 ftH 2:09p 16.3 ftL 8:24p -1.2 ft | 6:12a / 7:08p |
| 13 | Sun | H 2:32a 15.3 ftL 8:34a -0.3 ftH 2:40p 16.1 ftL 9:01p -1.1 ft | 6:14a / 7:06p |
| 14 | Mon | H 3:10a 14.4 ftL 9:06a 1.0 ftH 3:11p 15.6 ftL 9:38p -0.4 ft | 6:16a / 7:03p |
| 15 | Tue | H 3:49a 13.3 ftL 9:39a 2.4 ftH 3:42p 14.8 ftL 10:17p 0.5 ft | 6:18a / 7:01p |
| 16 | Wed | H 4:30a 12.1 ftL 10:12a 3.8 ftH 4:15p 13.8 ftL 11p 1.7 ft | 6:20a / 6:58p |
| 17 | Thu | H 5:17a 10.8 ftL 10:50a 5.2 ftH 4:53p 12.7 ftL 11:54p 2.9 ft | 6:21a / 6:56p |
| 18 | Fri | H 6:22a 9.8 ftL 11:41a 6.4 ftH 5:46p 11.7 ft | 6:23a / 6:53p |
| 19 | Sat | L 1:12a 3.7 ftH 7:59a 9.3 ftL 1:07p 7.2 ftH 7:09p 11.0 ft | 6:25a / 6:50p |
| 20 | Sun | L 2:47a 3.7 ftH 9:38a 9.7 ftL 3p 7.0 ftH 8:46p 11.1 ft | 6:27a / 6:48p |
| 21 | Mon | L 4:01a 3.1 ftH 10:36a 10.6 ftL 4:14p 5.9 ftH 9:59p 11.8 ft | 6:29a / 6:45p |
| 22 | Tue | L 4:50a 2.1 ftH 11:14a 11.7 ftL 5:03p 4.6 ftH 10:51p 12.7 ft | 6:31a / 6:43p |
| 23 | Wed | L 5:28a 1.2 ftH 11:45a 12.8 ftL 5:42p 3.1 ftH 11:34p 13.6 ft | 6:33a / 6:40p |
| 24 | Thu | L 6a 0.5 ftH 12:14p 13.8 ftL 6:17p 1.7 ft | 6:34a / 6:38p |
| 25 | Fri | H 12:13a 14.4 ftL 6:31a 0.0 ftH 12:42p 14.8 ftL 6:51p 0.3 ft | 6:36a / 6:35p |
| 26 | Sat | H 12:51a 15.0 ftL 7:01a -0.2 ftH 1:11p 15.7 ftL 7:26p -0.8 ft | 6:38a / 6:33p |
| 27 | Sun | H 1:29a 15.2 ftL 7:32a -0.1 ftH 1:40p 16.3 ftL 8:01p -1.6 ft | 6:40a / 6:30p |
| 28 | Mon | H 2:08a 15.2 ftL 8:05a 0.4 ftH 2:12p 16.6 ftL 8:39p -1.9 ft | 6:42a / 6:27p |
| 29 | Tue | H 2:48a 14.7 ftL 8:39a 1.3 ftH 2:45p 16.6 ftL 9:20p -1.7 ft | 6:44a / 6:25p |
| 30 | Wed | H 3:32a 13.9 ftL 9:16a 2.3 ftH 3:23p 16.1 ftL 10:07p -1.0 ft | 6:46a / 6:22p |
Last QuarterSep 3
New MoonSep 10
First QuarterSep 18
Full MoonSep 26
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Nearby stations
Tide charts near Kelp Island Passage, Duke Island
About this data
Predictions for Kelp Island Passage, Duke Island are computed from NOAA CO-OPS harmonic constituents using Ebb's on-device engine (a Schureman/pytides harmonic model). They are astronomical tide predictions and do not account for weather, wind, or barometric pressure, which can shift real water levels. Solunar bite windows are a fishing-planning heuristic, not a guarantee. Ebb is a fishing- and trip-planning tool, not a navigation product — always consult NOAA Tides & Currents and official sources for navigation-critical decisions.