Portage Bay, Kupreanof Island Tide Chart & Fishing Times
Tide times, heights, and solunar bite windows for Portage Bay, Kupreanof 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
TWC1663
Type
Subordinate (offset)
Coordinates
57.000, -133.317
Time Zone
Anchorage
Sun, moon & bite windows
Sunday, August 2
Sunday, August 2
Sunrise 4:54 AM · Sunset 9:03 PM · Moon Waning Gibbous (83% lit)
High 3:30a · 15.4 ftLow 9:47a · -0.8 ftHigh 4:09p · 15.3 ftLow 10:14p · 1.5 ft
Major window ★★★
2:54a – 4:54a
Minor window ★★★
9:39a – 10:39a
Major window ★★★
3:02p – 5:02p
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: 2:11a–4:11a, 2:20p–4:20p
Sunday, Aug 2 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 2:54a–4:54a, 3:02p–5:02p
Monday, Aug 3 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 3:37a–5:37a, 3:47p–5:47p
Tuesday, Aug 4 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 4:22a–6:22a, 4:34p–6:34p
Wednesday, Aug 19 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 5:11a–7:11a, 5:28p–7:28p
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
Portage Bay, Kupreanof Island tides, August 2026
All high and low tides for Portage Bay, Kupreanof Island, in local time (Anchorage). Heights are feet above Mean Lower Low Water (MLLW).
| Day | Tides (height above MLLW) | Sunrise / Sunset | |
|---|---|---|---|
| 1 | Sat | H 2:54a 16.0 ftL 9:16a -1.4 ftH 3:40p 15.1 ftL 9:36p 1.7 ft | 4:52a / 9:05p |
| 2 | Sun | H 3:30a 15.4 ftL 9:47a -0.8 ftH 4:09p 15.3 ftL 10:14p 1.5 ft | 4:54a / 9:03p |
| 3 | Mon | H 4:09a 14.4 ftL 10:20a 0.3 ftH 4:40p 15.4 ftL 10:57p 1.5 ft | 4:56a / 9p |
| 4 | Tue | H 4:52a 13.3 ftL 10:57a 1.7 ftH 5:16p 15.3 ftL 11:47p 1.7 ft | 4:58a / 8:58p |
| 5 | Wed | H 5:44a 12.1 ftL 11:40a 3.3 ftH 6:02p 15.0 ft | 5a / 8:56p |
| 6 | Thu | L 12:49a 1.9 ftH 6:54a 10.9 ftL 12:37p 4.8 ftH 7:02p 14.7 ft | 5:02a / 8:54p |
| 7 | Fri | L 2:05a 1.9 ftH 8:32a 10.3 ftL 1:57p 6.0 ftH 8:19p 14.6 ft | 5:04a / 8:51p |
| 8 | Sat | L 3:28a 1.3 ftH 10:14a 10.9 ftL 3:32p 6.1 ftH 9:40p 15.1 ft | 5:06a / 8:49p |
| 9 | Sun | L 4:42a 0.1 ftH 11:27a 12.2 ftL 4:52p 5.2 ftH 10:52p 16.0 ft | 5:08a / 8:47p |
| 10 | Mon | L 5:42a -1.3 ftH 12:22p 13.6 ftL 5:54p 3.7 ftH 11:53p 17.0 ft | 5:10a / 8:44p |
| 11 | Tue | L 6:33a -2.5 ftH 1:07p 14.9 ftL 6:46p 2.2 ft | 5:12a / 8:42p |
| 12 | Wed | H 12:46a 17.8 ftL 7:18a -3.3 ftH 1:47p 16.0 ftL 7:33p 0.9 ft | 5:14a / 8:40p |
| 13 | Thu | H 1:35a 18.2 ftL 7:59a -3.5 ftH 2:24p 16.7 ftL 8:17p 0.0 ft | 5:16a / 8:37p |
| 14 | Fri | H 2:20a 17.9 ftL 8:38a -3.2 ftH 3p 17.1 ftL 8:59p -0.5 ft | 5:19a / 8:35p |
| 15 | Sat | H 3:02a 17.2 ftL 9:16a -2.2 ftH 3:33p 17.0 ftL 9:40p -0.4 ft | 5:21a / 8:32p |
| 16 | Sun | H 3:44a 16.0 ftL 9:52a -0.7 ftH 4:06p 16.6 ftL 10:21p 0.1 ft | 5:23a / 8:30p |
| 17 | Mon | H 4:25a 14.5 ftL 10:28a 1.1 ftH 4:39p 15.9 ftL 11:04p 1.0 ft | 5:25a / 8:27p |
| 18 | Tue | H 5:08a 12.9 ftL 11:05a 3.0 ftH 5:14p 14.9 ftL 11:50p 2.1 ft | 5:27a / 8:25p |
| 19 | Wed | H 5:59a 11.3 ftL 11:47a 4.9 ftH 5:55p 13.8 ft | 5:29a / 8:22p |
| 20 | Thu | L 12:47a 3.2 ftH 7:10a 10.0 ftL 12:43p 6.5 ftH 6:50p 12.9 ft | 5:31a / 8:20p |
| 21 | Fri | L 2:03a 3.9 ftH 9:02a 9.5 ftL 2:10p 7.5 ftH 8:05p 12.3 ft | 5:33a / 8:17p |
| 22 | Sat | L 3:32a 3.9 ftH 10:39a 10.1 ftL 3:46p 7.4 ftH 9:29p 12.4 ft | 5:35a / 8:15p |
| 23 | Sun | L 4:44a 3.1 ftH 11:35a 11.1 ftL 4:54p 6.5 ftH 10:36p 13.2 ft | 5:37a / 8:12p |
| 24 | Mon | L 5:34a 2.0 ftH 12:14p 12.1 ftL 5:43p 5.3 ftH 11:28p 14.2 ft | 5:39a / 8:10p |
| 25 | Tue | L 6:13a 0.8 ftH 12:45p 13.1 ftL 6:22p 4.1 ft | 5:41a / 8:07p |
| 26 | Wed | H 12:11a 15.1 ftL 6:46a -0.2 ftH 1:13p 14.1 ftL 6:57p 2.8 ft | 5:43a / 8:04p |
| 27 | Thu | H 12:49a 15.9 ftL 7:16a -0.9 ftH 1:40p 14.9 ftL 7:30p 1.7 ft | 5:45a / 8:02p |
| 28 | Fri | H 1:25a 16.3 ftL 7:46a -1.3 ftH 2:06p 15.7 ftL 8:03p 0.7 ft | 5:47a / 7:59p |
| 29 | Sat | H 2a 16.5 ftL 8:15a -1.3 ftH 2:32p 16.3 ftL 8:36p 0.0 ft | 5:49a / 7:56p |
| 30 | Sun | H 2:36a 16.3 ftL 8:45a -0.9 ftH 2:59p 16.7 ftL 9:11p -0.5 ft | 5:51a / 7:54p |
| 31 | Mon | H 3:12a 15.7 ftL 9:17a 0.0 ftH 3:28p 16.9 ftL 9:48p -0.5 ft | 5:53a / 7:51p |
Last QuarterAug 5
New MoonAug 12
First QuarterAug 19
Full MoonAug 27
Tide table — September 2026
Portage Bay, Kupreanof Island tides, September 2026
| Day | Tides (height above MLLW) | Sunrise / Sunset | |
|---|---|---|---|
| 1 | Tue | H 3:51a 14.8 ftL 9:51a 1.3 ftH 4:01p 16.7 ftL 10:31p -0.1 ft | 5:56a / 7:48p |
| 2 | Wed | H 4:35a 13.6 ftL 10:29a 2.8 ftH 4:40p 16.1 ftL 11:21p 0.6 ft | 5:58a / 7:46p |
| 3 | Thu | H 5:29a 12.1 ftL 11:15a 4.4 ftH 5:29p 15.3 ft | 6a / 7:43p |
| 4 | Fri | L 12:24a 1.5 ftH 6:46a 10.9 ftL 12:19p 6.0 ftH 6:36p 14.4 ft | 6:02a / 7:40p |
| 5 | Sat | L 1:46a 2.0 ftH 8:39a 10.5 ftL 1:57p 6.8 ftH 8:08p 13.9 ft | 6:04a / 7:38p |
| 6 | Sun | L 3:16a 1.7 ftH 10:15a 11.5 ftL 3:38p 6.2 ftH 9:40p 14.4 ft | 6:06a / 7:35p |
| 7 | Mon | L 4:31a 0.6 ftH 11:17a 13.0 ftL 4:52p 4.6 ftH 10:51p 15.5 ft | 6:08a / 7:32p |
| 8 | Tue | L 5:28a -0.6 ftH 12:03p 14.5 ftL 5:48p 2.7 ftH 11:49p 16.5 ft | 6:10a / 7:29p |
| 9 | Wed | L 6:15a -1.6 ftH 12:42p 15.8 ftL 6:35p 1.0 ft | 6:12a / 7:27p |
| 10 | Thu | H 12:38a 17.2 ftL 6:56a -2.1 ftH 1:17p 16.8 ftL 7:17p -0.4 ft | 6:14a / 7:24p |
| 11 | Fri | H 1:22a 17.4 ftL 7:34a -2.1 ftH 1:50p 17.4 ftL 7:56p -1.3 ft | 6:16a / 7:21p |
| 12 | Sat | H 2:03a 17.2 ftL 8:10a -1.5 ftH 2:21p 17.6 ftL 8:34p -1.6 ft | 6:18a / 7:19p |
| 13 | Sun | H 2:43a 16.6 ftL 8:45a -0.4 ftH 2:51p 17.5 ftL 9:10p -1.3 ft | 6:20a / 7:16p |
| 14 | Mon | H 3:20a 15.6 ftL 9:18a 1.0 ftH 3:21p 16.9 ftL 9:46p -0.6 ft | 6:22a / 7:13p |
| 15 | Tue | H 3:58a 14.3 ftL 9:51a 2.6 ftH 3:51p 16.1 ftL 10:22p 0.5 ft | 6:24a / 7:10p |
| 16 | Wed | H 4:37a 12.9 ftL 10:25a 4.3 ftH 4:24p 15.0 ftL 11:03p 1.8 ft | 6:26a / 7:08p |
| 17 | Thu | H 5:22a 11.5 ftL 11:03a 5.8 ftH 5:03p 13.8 ftL 11:52p 3.2 ft | 6:28a / 7:05p |
| 18 | Fri | H 6:27a 10.2 ftL 11:56a 7.2 ftH 5:57p 12.6 ft | 6:30a / 7:02p |
| 19 | Sat | L 1:04a 4.2 ftH 8:22a 9.7 ftL 1:32p 8.0 ftH 7:18p 11.7 ft | 6:32a / 6:59p |
| 20 | Sun | L 2:42a 4.5 ftH 10:03a 10.3 ftL 3:20p 7.7 ftH 8:54p 11.8 ft | 6:34a / 6:57p |
| 21 | Mon | L 4:03a 3.7 ftH 10:56a 11.4 ftL 4:29p 6.4 ftH 10:08p 12.6 ft | 6:36a / 6:54p |
| 22 | Tue | L 4:55a 2.6 ftH 11:32a 12.5 ftL 5:16p 4.9 ftH 11:01p 13.7 ft | 6:38a / 6:51p |
| 23 | Wed | L 5:34a 1.5 ftH 12:01p 13.7 ftL 5:54p 3.3 ftH 11:45p 14.7 ft | 6:40a / 6:48p |
| 24 | Thu | L 6:08a 0.6 ftH 12:28p 14.9 ftL 6:28p 1.7 ft | 6:42a / 6:46p |
| 25 | Fri | H 12:24a 15.6 ftL 6:40a -0.1 ftH 12:55p 16.0 ftL 7:02p 0.2 ft | 6:45a / 6:43p |
| 26 | Sat | H 1:02a 16.2 ftL 7:11a -0.3 ftH 1:23p 16.9 ftL 7:35p -1.0 ft | 6:47a / 6:40p |
| 27 | Sun | H 1:40a 16.5 ftL 7:43a -0.2 ftH 1:51p 17.6 ftL 8:10p -1.9 ft | 6:49a / 6:37p |
| 28 | Mon | H 2:18a 16.4 ftL 8:16a 0.4 ftH 2:22p 18.0 ftL 8:47p -2.2 ft | 6:51a / 6:35p |
| 29 | Tue | H 2:58a 15.8 ftL 8:51a 1.3 ftH 2:55p 18.0 ftL 9:27p -2.0 ft | 6:53a / 6:32p |
| 30 | Wed | H 3:40a 14.9 ftL 9:29a 2.5 ftH 3:33p 17.5 ftL 10:12p -1.3 ft | 6:55a / 6:29p |
Last QuarterSep 3
New MoonSep 10
First QuarterSep 18
Full MoonSep 26
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Nearby stations
Tide charts near Portage Bay, Kupreanof Island
About this data
Predictions for Portage Bay, Kupreanof 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.