Port Houghton, Robert Islands Tide Chart & Fishing Times
Tide times, heights, and solunar bite windows for Port Houghton, Robert Islands, Alaska — August 2026 & September 2026. Every value is computed from NOAA harmonic constituents, the same offline engine that powers the Ebb app.
NOAA Station
TWC1673
Type
Subordinate (offset)
Coordinates
57.300, -133.467
Time Zone
Anchorage
Sun, moon & bite windows
Sunday, August 2
Sunday, August 2
Sunrise 4:53 AM · Sunset 9:05 PM · Moon Waning Gibbous (83% lit)
High 3:28a · 15.3 ftLow 9:45a · -0.9 ftHigh 4:07p · 15.2 ftLow 10:12p · 1.4 ft
Major window ★★★
2:54a – 4:54a
Minor window ★★★
9:39a – 10:39a
Major window ★★★
3:03p – 5:03p
Minor window ★★★
9:21p – 10:21p
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: 2:12a–4:12a, 2:20p–4:20p
Sunday, Aug 2 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 2:54a–4:54a, 3:03p–5:03p
Monday, Aug 3 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 3:38a–5:38a, 3:47p–5:47p
Tuesday, Aug 4 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 4:23a–6:23a, 4:35p–6:35p
Wednesday, Aug 19 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 5:11a–7:11a, 5:29p–7:29p
Thursday, Aug 20 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 5:59a–7:59a, 6:20p–8:20p
Tide table — August 2026
Port Houghton, Robert Islands tides, August 2026
All high and low tides for Port Houghton, Robert Islands, in local time (Anchorage). Heights are feet above Mean Lower Low Water (MLLW).
| Day | Tides (height above MLLW) | Sunrise / Sunset | |
|---|---|---|---|
| 1 | Sat | H 2:52a 15.9 ftL 9:14a -1.5 ftH 3:38p 15.0 ftL 9:34p 1.6 ft | 4:51a / 9:07p |
| 2 | Sun | H 3:28a 15.3 ftL 9:45a -0.9 ftH 4:07p 15.2 ftL 10:12p 1.4 ft | 4:53a / 9:05p |
| 3 | Mon | H 4:07a 14.3 ftL 10:18a 0.2 ftH 4:38p 15.3 ftL 10:55p 1.4 ft | 4:55a / 9:03p |
| 4 | Tue | H 4:50a 13.2 ftL 10:55a 1.6 ftH 5:14p 15.2 ftL 11:45p 1.6 ft | 4:57a / 9p |
| 5 | Wed | H 5:42a 12.0 ftL 11:38a 3.2 ftH 6p 14.9 ft | 4:59a / 8:58p |
| 6 | Thu | L 12:47a 1.8 ftH 6:52a 10.8 ftL 12:35p 4.7 ftH 7p 14.6 ft | 5:01a / 8:56p |
| 7 | Fri | L 2:03a 1.8 ftH 8:30a 10.2 ftL 1:55p 5.9 ftH 8:17p 14.5 ft | 5:03a / 8:53p |
| 8 | Sat | L 3:26a 1.2 ftH 10:12a 10.8 ftL 3:30p 6.0 ftH 9:38p 15.0 ft | 5:05a / 8:51p |
| 9 | Sun | L 4:40a 0.0 ftH 11:25a 12.1 ftL 4:50p 5.1 ftH 10:50p 15.9 ft | 5:07a / 8:49p |
| 10 | Mon | L 5:40a -1.4 ftH 12:20p 13.5 ftL 5:52p 3.6 ftH 11:51p 16.9 ft | 5:10a / 8:46p |
| 11 | Tue | L 6:31a -2.6 ftH 1:05p 14.8 ftL 6:44p 2.1 ft | 5:12a / 8:44p |
| 12 | Wed | H 12:44a 17.7 ftL 7:16a -3.4 ftH 1:45p 15.9 ftL 7:31p 0.8 ft | 5:14a / 8:42p |
| 13 | Thu | H 1:33a 18.1 ftL 7:57a -3.6 ftH 2:22p 16.6 ftL 8:15p -0.1 ft | 5:16a / 8:39p |
| 14 | Fri | H 2:18a 17.8 ftL 8:36a -3.3 ftH 2:58p 17.0 ftL 8:57p -0.6 ft | 5:18a / 8:37p |
| 15 | Sat | H 3a 17.1 ftL 9:14a -2.3 ftH 3:31p 16.9 ftL 9:38p -0.5 ft | 5:20a / 8:34p |
| 16 | Sun | H 3:42a 15.9 ftL 9:50a -0.8 ftH 4:04p 16.5 ftL 10:19p 0.0 ft | 5:22a / 8:32p |
| 17 | Mon | H 4:23a 14.4 ftL 10:26a 1.0 ftH 4:37p 15.8 ftL 11:02p 0.9 ft | 5:24a / 8:29p |
| 18 | Tue | H 5:06a 12.8 ftL 11:03a 2.9 ftH 5:12p 14.8 ftL 11:48p 2.0 ft | 5:26a / 8:27p |
| 19 | Wed | H 5:57a 11.2 ftL 11:45a 4.8 ftH 5:53p 13.7 ft | 5:28a / 8:24p |
| 20 | Thu | L 12:45a 3.1 ftH 7:08a 9.9 ftL 12:41p 6.4 ftH 6:48p 12.8 ft | 5:30a / 8:21p |
| 21 | Fri | L 2:01a 3.8 ftH 9a 9.4 ftL 2:08p 7.4 ftH 8:03p 12.2 ft | 5:33a / 8:19p |
| 22 | Sat | L 3:30a 3.8 ftH 10:37a 10.0 ftL 3:44p 7.3 ftH 9:27p 12.3 ft | 5:35a / 8:16p |
| 23 | Sun | L 4:42a 3.0 ftH 11:33a 11.0 ftL 4:52p 6.4 ftH 10:34p 13.1 ft | 5:37a / 8:14p |
| 24 | Mon | L 5:32a 1.9 ftH 12:12p 12.0 ftL 5:41p 5.2 ftH 11:26p 14.1 ft | 5:39a / 8:11p |
| 25 | Tue | L 6:11a 0.7 ftH 12:43p 13.0 ftL 6:20p 4.0 ft | 5:41a / 8:08p |
| 26 | Wed | H 12:09a 15.0 ftL 6:44a -0.3 ftH 1:11p 14.0 ftL 6:55p 2.7 ft | 5:43a / 8:06p |
| 27 | Thu | H 12:47a 15.8 ftL 7:14a -1.0 ftH 1:38p 14.8 ftL 7:28p 1.6 ft | 5:45a / 8:03p |
| 28 | Fri | H 1:23a 16.2 ftL 7:44a -1.4 ftH 2:04p 15.6 ftL 8:01p 0.6 ft | 5:47a / 8p |
| 29 | Sat | H 1:58a 16.4 ftL 8:13a -1.4 ftH 2:30p 16.2 ftL 8:34p -0.1 ft | 5:49a / 7:58p |
| 30 | Sun | H 2:34a 16.2 ftL 8:43a -1.0 ftH 2:57p 16.6 ftL 9:09p -0.6 ft | 5:51a / 7:55p |
| 31 | Mon | H 3:10a 15.6 ftL 9:15a -0.1 ftH 3:26p 16.8 ftL 9:46p -0.6 ft | 5:53a / 7:52p |
Last QuarterAug 5
New MoonAug 12
First QuarterAug 19
Full MoonAug 27
Tide table — September 2026
Port Houghton, Robert Islands tides, September 2026
| Day | Tides (height above MLLW) | Sunrise / Sunset | |
|---|---|---|---|
| 1 | Tue | H 3:49a 14.7 ftL 9:49a 1.2 ftH 3:59p 16.6 ftL 10:29p -0.2 ft | 5:55a / 7:50p |
| 2 | Wed | H 4:33a 13.5 ftL 10:27a 2.7 ftH 4:38p 16.0 ftL 11:19p 0.5 ft | 5:58a / 7:47p |
| 3 | Thu | H 5:27a 12.0 ftL 11:13a 4.3 ftH 5:27p 15.2 ft | 6a / 7:44p |
| 4 | Fri | L 12:22a 1.4 ftH 6:44a 10.8 ftL 12:17p 5.9 ftH 6:34p 14.3 ft | 6:02a / 7:41p |
| 5 | Sat | L 1:44a 1.9 ftH 8:37a 10.4 ftL 1:55p 6.7 ftH 8:06p 13.8 ft | 6:04a / 7:39p |
| 6 | Sun | L 3:14a 1.6 ftH 10:13a 11.4 ftL 3:36p 6.1 ftH 9:38p 14.3 ft | 6:06a / 7:36p |
| 7 | Mon | L 4:29a 0.5 ftH 11:15a 12.9 ftL 4:50p 4.5 ftH 10:49p 15.4 ft | 6:08a / 7:33p |
| 8 | Tue | L 5:26a -0.7 ftH 12:01p 14.4 ftL 5:46p 2.6 ftH 11:47p 16.4 ft | 6:10a / 7:31p |
| 9 | Wed | L 6:13a -1.7 ftH 12:40p 15.7 ftL 6:33p 0.9 ft | 6:12a / 7:28p |
| 10 | Thu | H 12:36a 17.1 ftL 6:54a -2.2 ftH 1:15p 16.7 ftL 7:15p -0.5 ft | 6:14a / 7:25p |
| 11 | Fri | H 1:20a 17.3 ftL 7:32a -2.2 ftH 1:48p 17.3 ftL 7:54p -1.4 ft | 6:16a / 7:22p |
| 12 | Sat | H 2:01a 17.1 ftL 8:08a -1.6 ftH 2:19p 17.5 ftL 8:32p -1.7 ft | 6:18a / 7:19p |
| 13 | Sun | H 2:41a 16.5 ftL 8:43a -0.5 ftH 2:49p 17.4 ftL 9:08p -1.4 ft | 6:20a / 7:17p |
| 14 | Mon | H 3:18a 15.5 ftL 9:16a 0.9 ftH 3:19p 16.8 ftL 9:44p -0.7 ft | 6:22a / 7:14p |
| 15 | Tue | H 3:56a 14.2 ftL 9:49a 2.5 ftH 3:49p 16.0 ftL 10:20p 0.4 ft | 6:24a / 7:11p |
| 16 | Wed | H 4:35a 12.8 ftL 10:23a 4.2 ftH 4:22p 14.9 ftL 11:01p 1.7 ft | 6:26a / 7:08p |
| 17 | Thu | H 5:20a 11.4 ftL 11:01a 5.7 ftH 5:01p 13.7 ftL 11:50p 3.1 ft | 6:29a / 7:06p |
| 18 | Fri | H 6:25a 10.1 ftL 11:54a 7.1 ftH 5:55p 12.5 ft | 6:31a / 7:03p |
| 19 | Sat | L 1:02a 4.1 ftH 8:20a 9.6 ftL 1:30p 7.9 ftH 7:16p 11.6 ft | 6:33a / 7p |
| 20 | Sun | L 2:40a 4.4 ftH 10:01a 10.2 ftL 3:18p 7.6 ftH 8:52p 11.7 ft | 6:35a / 6:57p |
| 21 | Mon | L 4:01a 3.6 ftH 10:54a 11.3 ftL 4:27p 6.3 ftH 10:06p 12.5 ft | 6:37a / 6:55p |
| 22 | Tue | L 4:53a 2.5 ftH 11:30a 12.4 ftL 5:14p 4.8 ftH 10:59p 13.6 ft | 6:39a / 6:52p |
| 23 | Wed | L 5:32a 1.4 ftH 11:59a 13.6 ftL 5:52p 3.2 ftH 11:43p 14.6 ft | 6:41a / 6:49p |
| 24 | Thu | L 6:06a 0.5 ftH 12:26p 14.8 ftL 6:26p 1.6 ft | 6:43a / 6:46p |
| 25 | Fri | H 12:22a 15.5 ftL 6:38a -0.2 ftH 12:53p 15.9 ftL 7p 0.1 ft | 6:45a / 6:43p |
| 26 | Sat | H 1a 16.1 ftL 7:09a -0.4 ftH 1:21p 16.8 ftL 7:33p -1.1 ft | 6:47a / 6:41p |
| 27 | Sun | H 1:38a 16.4 ftL 7:41a -0.3 ftH 1:49p 17.5 ftL 8:08p -2.0 ft | 6:49a / 6:38p |
| 28 | Mon | H 2:16a 16.3 ftL 8:14a 0.3 ftH 2:20p 17.9 ftL 8:45p -2.3 ft | 6:51a / 6:35p |
| 29 | Tue | H 2:56a 15.7 ftL 8:49a 1.2 ftH 2:53p 17.9 ftL 9:25p -2.1 ft | 6:54a / 6:32p |
| 30 | Wed | H 3:38a 14.8 ftL 9:27a 2.4 ftH 3:31p 17.4 ftL 10:10p -1.4 ft | 6:56a / 6:30p |
Last QuarterSep 3
New MoonSep 10
First QuarterSep 18
Full MoonSep 26
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Tide charts near Port Houghton, Robert Islands
About this data
Predictions for Port Houghton, Robert Islands 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.