Constantine Harbor, Amchitka Island Tide Chart & Fishing Times
Tide times, heights, and solunar bite windows for Constantine Harbor, Amchitka 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
TWC2303
Type
Subordinate (offset)
Coordinates
51.417, 179.283
Time Zone
Honolulu
Sun, moon & bite windows
Sunday, August 2
Sunday, August 2
Sunrise 6:29 AM · Sunset 9:48 PM · Moon Waning Gibbous (82% lit)
Low 12:25p · 0.4 ftHigh 9:42p · 2.2 ft
Major window ★★★
4:08a – 6:08a
Minor window ★★★
10:56a – 11:56a
Major window ★★★
4:19p – 6:19p
Minor window ★★★
10:37p – 11:37p
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.
Wednesday, Aug 5 ★★★
Major window overlaps dawn/dusk or a tide swing
Major windows: 6:26a–8:26a, 6:45p–8:45p
Thursday, Aug 6 ★★★
Major window overlaps dawn/dusk or a tide swing
Major windows: 7:20a–9:20a, 7:43p–9:43p
Friday, Aug 7 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 8:19a–10:19a, 8:47p–10:47p
Saturday, Aug 8 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 9:21a–11:21a, 9:55p–11:55p
Friday, Aug 21 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 8:04a–10:04a, 8:29p–10:29p
Saturday, Aug 22 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 8:55a–10:55a, 9:23p–11:23p
Tide table — August 2026
Constantine Harbor, Amchitka Island tides, August 2026
All high and low tides for Constantine Harbor, Amchitka Island, in local time (Honolulu). Heights are feet above Mean Lower Low Water (MLLW).
| Day | Tides (height above MLLW) | Sunrise / Sunset | |
|---|---|---|---|
| 1 | Sat | L 12p 0.0 ftH 10:22p 2.2 ft | 6:27a / 9:49p |
| 2 | Sun | L 12:25p 0.4 ftH 9:42p 2.2 ft | 6:29a / 9:48p |
| 3 | Mon | L 2:46a 1.4 ftH 7:43a 1.5 ftL 12:34p 0.9 ftH 9:18p 2.4 ft | 6:30a / 9:46p |
| 4 | Tue | L 3:15a 0.9 ftH 10:31a 1.4 ftL 12:26p 1.3 ftH 9:18p 2.6 ft | 6:32a / 9:44p |
| 5 | Wed | L 3:52a 0.3 ftH 9:29p 2.9 ft | 6:33a / 9:42p |
| 6 | Thu | L 4:35a -0.1 ftH 9:52p 3.3 ft | 6:35a / 9:41p |
| 7 | Fri | L 5:22a -0.5 ftH 10:27p 3.5 ft | 6:36a / 9:39p |
| 8 | Sat | L 6:12a -0.8 ftH 11:12p 3.7 ft | 6:38a / 9:37p |
| 9 | Sun | L 7:04a -1.0 ft | 6:39a / 9:35p |
| 10 | Mon | H 12:04a 3.7 ftL 7:57a -1.0 ft | 6:41a / 9:33p |
| 11 | Tue | H 1:01a 3.6 ftL 8:50a -0.9 ft | 6:43a / 9:31p |
| 12 | Wed | H 2:04a 3.3 ftL 9:41a -0.7 ft | 6:44a / 9:30p |
| 13 | Thu | H 3:16a 2.9 ftL 10:29a -0.4 ftH 8:29p 2.2 ftL 10:12p 2.0 ft | 6:46a / 9:28p |
| 14 | Fri | H 4:40a 2.5 ftL 11:15a -0.1 ftH 8:22p 2.2 ft | 6:47a / 9:26p |
| 15 | Sat | L 12:02a 1.6 ftH 6:18a 2.1 ftL 11:58a 0.4 ftH 8:29p 2.2 ft | 6:49a / 9:24p |
| 16 | Sun | L 1:19a 1.1 ftH 8:08a 1.8 ftL 12:39p 0.9 ftH 8:43p 2.4 ft | 6:50a / 9:22p |
| 17 | Mon | L 2:19a 0.6 ftH 10:05a 1.8 ftL 1:18p 1.3 ftH 8:59p 2.5 ft | 6:52a / 9:20p |
| 18 | Tue | L 3:10a 0.3 ftH 12:01p 1.9 ftL 1:53p 1.7 ftH 9:17p 2.6 ft | 6:54a / 9:18p |
| 19 | Wed | L 3:58a 0.0 ftH 1:52p 2.1 ftL 2:18p 2.0 ftH 9:36p 2.7 ft | 6:55a / 9:16p |
| 20 | Thu | L 4:44a -0.1 ftH 9:56p 2.8 ft | 6:57a / 9:13p |
| 21 | Fri | L 5:29a -0.2 ftH 10:19p 2.9 ft | 6:58a / 9:11p |
| 22 | Sat | L 6:14a -0.2 ftH 10:46p 2.9 ft | 7a / 9:09p |
| 23 | Sun | L 6:59a -0.2 ftH 11:17p 3.0 ft | 7:01a / 9:07p |
| 24 | Mon | L 7:43a -0.2 ftH 11:50p 2.9 ft | 7:03a / 9:05p |
| 25 | Tue | L 8:25a -0.2 ft | 7:05a / 9:03p |
| 26 | Wed | H 12:26a 2.8 ftL 9:03a -0.1 ft | 7:06a / 9:01p |
| 27 | Thu | H 1:06a 2.6 ftL 9:38a 0.1 ft | 7:08a / 8:59p |
| 28 | Fri | H 2a 2.3 ftL 10:11a 0.3 ftH 8:39p 2.0 ftL 10:09p 1.9 ft | 7:09a / 8:56p |
| 29 | Sat | H 3:36a 2.0 ftL 10:41a 0.6 ftH 7:40p 1.9 ftL 11:43p 1.5 ft | 7:11a / 8:54p |
| 30 | Sun | H 5:52a 1.7 ftL 11:09a 1.0 ftH 7:20p 2.0 ft | 7:13a / 8:52p |
| 31 | Mon | L 12:40a 1.0 ftH 8:15a 1.7 ftL 11:31a 1.4 ftH 7:18p 2.3 ft | 7:14a / 8:50p |
Last QuarterAug 5
New MoonAug 12
First QuarterAug 19
Full MoonAug 27
Tide table — September 2026
Constantine Harbor, Amchitka Island tides, September 2026
| Day | Tides (height above MLLW) | Sunrise / Sunset | |
|---|---|---|---|
| 1 | Tue | L 1:28a 0.5 ftH 11:13a 1.8 ftL 11:34a 1.8 ftH 7:28p 2.5 ft | 7:16a / 8:48p |
| 2 | Wed | L 2:15a 0.1 ftH 7:51p 2.8 ft | 7:17a / 8:45p |
| 3 | Thu | L 3:04a -0.3 ftH 8:26p 3.1 ft | 7:19a / 8:43p |
| 4 | Fri | L 3:55a -0.6 ftH 9:12p 3.3 ft | 7:21a / 8:41p |
| 5 | Sat | L 4:48a -0.7 ftH 10:06p 3.4 ft | 7:22a / 8:39p |
| 6 | Sun | L 5:42a -0.8 ftH 11:05p 3.4 ft | 7:24a / 8:36p |
| 7 | Mon | L 6:35a -0.7 ft | 7:25a / 8:34p |
| 8 | Tue | H 12:09a 3.2 ftL 7:27a -0.5 ft | 7:27a / 8:32p |
| 9 | Wed | H 1:18a 2.9 ftL 8:17a -0.2 ftH 6:03p 2.0 ftL 7:27p 1.9 ft | 7:28a / 8:30p |
| 10 | Thu | H 2:36a 2.6 ftL 9:06a 0.1 ftH 6:01p 2.0 ftL 9:12p 1.5 ft | 7:30a / 8:27p |
| 11 | Fri | H 4:09a 2.2 ftL 9:53a 0.6 ftH 6:08p 2.0 ftL 10:38p 1.1 ft | 7:32a / 8:25p |
| 12 | Sat | H 5:57a 2.0 ftL 10:40a 1.0 ftH 6:21p 2.1 ftL 11:46p 0.7 ft | 7:33a / 8:23p |
| 13 | Sun | H 7:55a 2.0 ftL 11:30a 1.4 ftH 6:36p 2.2 ft | 7:35a / 8:20p |
| 14 | Mon | L 12:42a 0.4 ftH 9:46a 2.1 ftL 12:23p 1.8 ftH 6:54p 2.3 ft | 7:36a / 8:18p |
| 15 | Tue | L 1:30a 0.1 ftH 11:16a 2.3 ftL 1:19p 2.1 ftH 7:13p 2.4 ft | 7:38a / 8:16p |
| 16 | Wed | L 2:16a -0.1 ftH 12:29p 2.5 ftL 2:12p 2.3 ftH 7:35p 2.5 ft | 7:40a / 8:13p |
| 17 | Thu | L 3a -0.2 ftH 1:34p 2.6 ftL 2:54p 2.5 ftH 8:03p 2.6 ft | 7:41a / 8:11p |
| 18 | Fri | L 3:45a -0.2 ftH 2:38p 2.6 ftL 3:20p 2.5 ftH 8:37p 2.7 ft | 7:43a / 8:09p |
| 19 | Sat | L 4:31a -0.2 ftL 3:23p 2.5 ftH 3:54p 2.5 ftH 9:18p 2.7 ft | 7:44a / 8:07p |
| 20 | Sun | L 5:15a -0.1 ftH 10:01p 2.7 ft | 7:46a / 8:04p |
| 21 | Mon | L 5:59a 0.0 ftH 10:46p 2.6 ft | 7:48a / 8:02p |
| 22 | Tue | L 6:39a 0.1 ftH 11:34p 2.5 ft | 7:49a / 8p |
| 23 | Wed | L 7:16a 0.3 ftL 5:50p 2.0 ftH 6:20p 2.0 ft | 7:51a / 7:57p |
| 24 | Thu | H 12:33a 2.3 ftL 7:49a 0.5 ftH 5:23p 1.9 ftL 7:39p 1.7 ft | 7:52a / 7:55p |
| 25 | Fri | H 1:57a 2.0 ftL 8:20a 0.8 ftH 4:52p 1.8 ftL 9:01p 1.4 ft | 7:54a / 7:53p |
| 26 | Sat | H 3:57a 1.8 ftL 8:47a 1.2 ftH 4:38p 2.0 ftL 10:06p 1.0 ft | 7:56a / 7:50p |
| 27 | Sun | H 6:32a 1.8 ftL 9:08a 1.6 ftH 4:35p 2.2 ftL 11:02p 0.5 ft | 7:57a / 7:48p |
| 28 | Mon | H 4:43p 2.4 ftL 11:54p 0.1 ft | 7:59a / 7:46p |
| 29 | Tue | H 5:04p 2.7 ft | 8a / 7:44p |
| 30 | Wed | L 12:45a -0.3 ftH 5:42p 3.0 ft | 8:02a / 7:41p |
Last QuarterSep 3
New MoonSep 10
First QuarterSep 17
Full MoonSep 25
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Nearby stations
Tide charts near Constantine Harbor, Amchitka Island
About this data
Predictions for Constantine Harbor, Amchitka 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.