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Constantine Harbor, Amchitka Island tide times

High and low tides, king tides and solunar fishing times for Constantine Harbor, Amchitka Island, Alaska, NOAA station TWC2303. Times are local (Hawaii-Aleutian Standard Time). Heights are feet above Mean Lower Low Water (MLLW).

Predictions for October 2026 and November 2026. Generated October 10, 2026.

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Constantine Harbor, Amchitka Island tide table, October 2026

DayHigh and low tides (ft above MLLW)Sunrise / sunsetSolunar windows
1 ThuL 1:36a -0.6 ftH 6:35p 3.1 ft8:04a / 7:39pMajor 5:07a-7:07aMinor 2:44p-3:44pMajor 5:37p-7:37pMinor 9:30p-10:30p
2 FriL 2:29a -0.8 ftH 7:38p 3.2 ft8:05a / 7:37pMajor 6:09a-8:09aMinor 3:45p-4:45pMajor 6:42p-8:42pMinor 10:40p-11:40p
3 SatL 3:23a -0.8 ftH 8:46p 3.2 ft8:07a / 7:35pMajor 7:10a-9:10aMinor 4:28p-5:28pMajor 7:45p-9:45p
4 SunL 4:16a -0.7 ftH 3:02p 2.6 ftL 3:33p 2.6 ftH 9:57p 3.0 ft8:09a / 7:32pMinor 12:02a-1:02aMajor 8:08a-10:08aMinor 4:58p-5:58pMajor 8:43p-10:43p
5 MonL 5:07a -0.5 ftH 3:11p 2.4 ftL 4:50p 2.3 ftH 11:11p 2.8 ft8:10a / 7:30pMinor 1:29a-2:29aMajor 9:02a-11:02aMinor 5:19p-6:19pMajor 9:36p-11:36p
6 TueL 5:56a -0.2 ftH 3:21p 2.3 ftL 6:08p 1.9 ft8:12a / 7:28pMinor 2:55a-3:55aMajor 9:52a-11:52aMinor 5:36p-6:36pMajor 10:26p-12:26a
7 WedH 12:32a 2.5 ftL 6:42a 0.2 ftH 3:31p 2.2 ftL 7:24p 1.5 ft8:14a / 7:26pMinor 4:18a-5:18aMajor 10:38a-12:38pMinor 5:49p-6:49p
8 ThuH 2:05a 2.1 ftL 7:26a 0.7 ftH 3:41p 2.2 ftL 8:36p 1.1 ft8:15a / 7:23pMajor 11:12p-1:12aMinor 5:39a-6:39aMajor 11:23a-1:23pMinor 6:02p-7:02p
9 FriH 3:56a 1.9 ftL 8:08a 1.2 ftH 3:51p 2.2 ftL 9:39p 0.7 ft8:17a / 7:21pMajor 11:56p-1:56aMinor 6:58a-7:58aMajor 12:08p-2:08pMinor 6:14p-7:14p
10 SatH 6:10a 1.9 ftL 8:50a 1.7 ftH 4:00p 2.3 ftL 10:33p 0.3 ft8:19a / 7:19pMajor 12:40a-2:40aMinor 8:16a-9:16aMajor 12:53p-2:53pMinor 6:27p-7:27p
11 SunH 8:28a 2.2 ftL 9:42a 2.1 ftH 4:06p 2.4 ftL 11:21p 0.0 ft8:20a / 7:17pMajor 1:25a-3:25aMinor 9:34a-10:34aMajor 1:39p-3:39pMinor 6:43p-7:43p
12 MonH 10:09a 2.5 ftL 11:08a 2.4 ftH 4:02p 2.5 ft8:22a / 7:15pMajor 2:10a-4:10aMinor 10:52a-11:52aMajor 2:28p-4:28pMinor 7:03p-8:03p
13 TueL 12:04a -0.2 ftH 11:08a 2.7 ft8:24a / 7:13pMajor 2:58a-4:58aMinor 12:07p-1:07pMajor 3:18p-5:18pMinor 7:30p-8:30p
14 WedL 12:46a -0.3 ftH 11:51a 2.9 ft8:25a / 7:10pMajor 3:48a-5:48aMinor 1:16p-2:16pMajor 4:11p-6:11pMinor 8:06p-9:06p
15 ThuL 1:27a -0.3 ftH 12:30p 3.0 ft8:27a / 7:08pMajor 4:38a-6:38aMinor 2:14p-3:14pMajor 5:04p-7:04pMinor 8:53p-9:53p
16 FriL 2:09a -0.3 ftH 1:10p 2.9 ft8:29a / 7:06pMajor 5:29a-7:29aMinor 3:00p-4:00pMajor 5:56p-7:56pMinor 9:53p-10:53p
17 SatL 2:52a -0.2 ftH 1:48p 2.8 ft8:30a / 7:04pMajor 6:19a-8:19aMinor 3:35p-4:35pMajor 6:48p-8:48pMinor 11:01p-12:01a
18 SunL 3:33a -0.1 ftH 2:21p 2.7 ftL 4:58p 2.5 ftH 7:29p 2.5 ft8:32a / 7:02pMajor 7:07a-9:07aMinor 4:00p-5:00pMajor 7:36p-9:36p
19 MonL 4:12a 0.0 ftH 2:46p 2.5 ftL 5:17p 2.4 ftH 8:46p 2.4 ft8:34a / 7:00pMinor 12:14a-1:14aMajor 7:53a-9:53aMinor 4:19p-5:19pMajor 8:23p-10:23p
20 TueL 4:48a 0.2 ftH 2:55p 2.4 ftL 5:54p 2.1 ftH 9:59p 2.2 ft8:35a / 6:58pMinor 1:28a-2:28aMajor 8:37a-10:37aMinor 4:34p-5:34pMajor 9:08p-11:08p
21 WedL 5:18a 0.5 ftH 2:48p 2.2 ftL 6:39p 1.8 ftH 11:30p 1.9 ft8:37a / 6:56pMinor 2:44a-3:44aMajor 9:20a-11:20aMinor 4:47p-5:47pMajor 9:52p-11:52p
22 ThuL 5:42a 0.8 ftH 2:34p 2.2 ftL 7:25p 1.4 ft8:39a / 6:54pMinor 4:00a-5:00aMajor 10:03a-12:03pMinor 4:59p-5:59pMajor 10:36p-12:36a
23 FriH 1:29a 1.7 ftL 5:56a 1.2 ftH 2:22p 2.3 ftL 8:11p 1.0 ft8:41a / 6:52pMinor 5:18a-6:18aMajor 10:47a-12:47pMinor 5:12p-6:12p
24 SatH 4:15a 1.6 ftL 5:31a 1.6 ftH 2:14p 2.4 ftL 8:57p 0.5 ft8:42a / 6:50pMajor 11:21p-1:21aMinor 6:39a-7:39aMajor 11:34a-1:34pMinor 5:25p-6:25p
25 SunH 2:13p 2.7 ftL 9:44p 0.1 ft8:44a / 6:48pMajor 12:08a-2:08aMinor 8:04a-9:04aMajor 12:24p-2:24pMinor 5:42p-6:42p
26 MonH 2:23p 3.0 ftL 10:33p -0.4 ft8:46a / 6:46pMajor 1:00a-3:00aMinor 9:33a-10:33aMajor 1:19p-3:19pMinor 6:05p-7:05p
27 TueH 2:48p 3.3 ftL 11:24p -0.7 ft8:48a / 6:44pMajor 1:56a-3:56aMinor 11:03a-12:03pMajor 2:20p-4:20pMinor 6:37p-7:37p
28 WedH 3:29p 3.4 ft8:49a / 6:42pMajor 2:56a-4:56aMinor 12:28p-1:28pMajor 3:26p-5:26pMinor 7:24p-8:24p
29 ThuL 12:16a -0.9 ftH 4:29p 3.4 ft8:51a / 6:40pMajor 4:00a-6:00aMinor 1:37p-2:37pMajor 4:33p-6:33pMinor 8:29p-9:29p
30 FriL 1:09a -1.0 ftL 12:28p 3.2 ftH 1:35p 3.2 ftH 5:46p 3.3 ft8:53a / 6:38pMajor 5:03a-7:03aMinor 2:27p-3:27pMajor 5:39p-7:39pMinor 9:50p-10:50p
31 SatL 2:01a -1.0 ftH 1:05p 3.1 ftL 2:22p 3.0 ftH 7:09p 3.1 ft8:55a / 6:37pMajor 6:03a-8:03aMinor 3:02p-4:02pMajor 6:39p-8:39pMinor 11:17p-12:17a
Last Quarter Oct 2New Moon Oct 9First Quarter Oct 17Full Moon Oct 25

Constantine Harbor, Amchitka Island tide table, November 2026

DayHigh and low tides (ft above MLLW)Sunrise / sunsetSolunar windows
1 SunL 2:52a -0.8 ftH 1:12p 2.9 ftL 3:38p 2.6 ftH 8:34p 2.8 ft8:56a / 6:35pMajor 6:59a-8:59aMinor 3:25p-4:25pMajor 7:34p-9:34p
2 MonL 3:41a -0.5 ftH 1:24p 2.8 ftL 4:49p 2.2 ftH 10:03p 2.5 ft8:58a / 6:33pMinor 12:43a-1:43aMajor 7:50a-9:50aMinor 3:43p-4:43pMajor 8:23p-10:23p
3 TueL 4:26a 0.0 ftH 1:37p 2.7 ftL 5:57p 1.7 ftH 11:41p 2.1 ft9:00a / 6:31pMinor 2:07a-3:07aMajor 8:36a-10:36aMinor 3:57p-4:57pMajor 9:09p-11:09p
4 WedL 5:06a 0.5 ftH 1:49p 2.6 ftL 7:00p 1.2 ft9:02a / 6:30pMinor 3:26a-4:26aMajor 9:21a-11:21aMinor 4:09p-5:09pMajor 9:53p-11:53p
5 ThuH 1:34a 1.8 ftL 5:40a 1.0 ftH 2:00p 2.7 ftL 7:57p 0.7 ft9:03a / 6:28pMinor 4:44a-5:44aMajor 10:05a-12:05pMinor 4:21p-5:21pMajor 10:36p-12:36a
6 FriH 3:56a 1.8 ftL 6:03a 1.6 ftH 2:07p 2.7 ftL 8:47p 0.3 ft9:05a / 6:26pMinor 6:00a-7:00aMajor 10:48a-12:48pMinor 4:34p-5:34p
7 SatH 2:10p 2.8 ftL 9:32p 0.0 ft9:07a / 6:25pMajor 11:20p-1:20aMinor 7:17a-8:17aMajor 11:34a-1:34pMinor 4:49p-5:49p
8 SunH 2:00p 2.9 ftL 10:14p -0.2 ft9:09a / 6:23pMajor 12:05a-2:05aMinor 8:34a-9:34aMajor 12:21p-2:21pMinor 5:07p-6:07p
9 MonH 1:24p 3.0 ftL 10:53p -0.3 ft9:10a / 6:21pMajor 12:52a-2:52aMinor 9:50a-10:50aMajor 1:11p-3:11pMinor 5:31p-6:31p
10 TueH 12:16p 3.2 ftL 11:31p -0.4 ft9:12a / 6:20pMajor 1:40a-3:40aMinor 11:01a-12:01pMajor 2:03p-4:03pMinor 6:04p-7:04p
11 WedH 11:55a 3.3 ft9:14a / 6:18pMajor 2:31a-4:31aMinor 12:04p-1:04pMajor 2:56p-4:56pMinor 6:47p-7:47p
12 ThuL 12:10a -0.4 ftH 12:08p 3.3 ft9:16a / 6:17pMajor 3:22a-5:22aMinor 12:55p-1:55pMajor 3:49p-5:49pMinor 7:43p-8:43p
13 FriL 12:49a -0.4 ftH 12:29p 3.3 ft9:17a / 6:15pMajor 4:12a-6:12aMinor 1:33p-2:33pMajor 4:40p-6:40pMinor 8:48p-9:48p
14 SatL 1:27a -0.3 ftH 12:50p 3.2 ft9:19a / 6:14pMajor 5:00a-7:00aMinor 2:01p-3:01pMajor 5:29p-7:29pMinor 9:58p-10:58p
15 SunL 2:04a -0.2 ftH 1:07p 3.0 ft9:21a / 6:13pMajor 5:47a-7:47aMinor 2:22p-3:22pMajor 6:16p-8:16pMinor 11:11p-12:11a
16 MonL 2:39a 0.0 ftH 1:17p 2.9 ft9:23a / 6:11pMajor 6:31a-8:31aMinor 2:38p-3:38pMajor 7:01p-9:01p
17 TueL 3:09a 0.2 ftH 1:17p 2.7 ft9:24a / 6:10pMinor 12:24a-1:24aMajor 7:13a-9:13aMinor 2:52p-3:52pMajor 7:44p-9:44p
18 WedL 3:32a 0.5 ftH 1:08p 2.6 ftL 7:04p 1.7 ftH 9:34p 1.7 ft9:26a / 6:09pMinor 1:38a-2:38aMajor 7:55a-9:55aMinor 3:04p-4:04pMajor 8:26p-10:26p
19 ThuL 3:46a 0.9 ftH 12:56p 2.6 ftL 6:57p 1.3 ft9:28a / 6:08pMinor 2:53a-3:53aMajor 8:38a-10:38aMinor 3:16p-4:16pMajor 9:10p-11:10p
20 FriH 12:40a 1.5 ftL 3:33a 1.3 ftH 12:47p 2.8 ftL 7:22p 0.8 ft9:29a / 6:07pMinor 4:10a-5:10aMajor 9:22a-11:22aMinor 3:29p-4:29pMajor 9:55p-11:55p
21 SatH 12:43p 3.0 ftL 7:55p 0.3 ft9:31a / 6:05pMinor 5:32a-6:32aMajor 10:09a-12:09pMinor 3:44p-4:44pMajor 10:44p-12:44a
22 SunH 12:47p 3.3 ftL 8:36p -0.2 ft9:32a / 6:04pMinor 6:59a-7:59aMajor 11:02a-1:02pMinor 4:04p-5:04p
23 MonH 1:03p 3.6 ftL 9:21p -0.6 ft9:34a / 6:03pMajor 11:38p-1:38aMinor 8:29a-9:29aMajor 12:00p-2:00pMinor 4:31p-5:31p
24 TueH 1:32p 3.8 ftL 10:11p -0.9 ft9:36a / 6:02pMajor 12:38a-2:38aMinor 9:59a-10:59aMajor 1:05p-3:05pMinor 5:12p-6:12p
25 WedH 2:12p 3.9 ftL 11:02p -1.1 ft9:37a / 6:01pMajor 1:42a-3:42aMinor 11:19a-12:19pMajor 2:15p-4:15pMinor 6:11p-7:11p
26 ThuH 3:05p 3.9 ftL 11:55p -1.2 ft9:39a / 6:01pMajor 2:48a-4:48aMinor 12:19p-1:19pMajor 3:24p-5:24pMinor 7:29p-8:29p
27 FriH 4:11p 3.7 ft9:40a / 6:00pMajor 3:52a-5:52aMinor 1:00p-2:00pMajor 4:29p-6:29pMinor 8:57p-9:57p
28 SatL 12:46a -1.1 ftH 12:11p 3.3 ftL 1:09p 3.2 ftH 5:32p 3.3 ft9:42a / 5:59pMajor 4:51a-6:51aMinor 1:28p-2:28pMajor 5:28p-7:28pMinor 10:28p-11:28p
29 SunL 1:35a -0.8 ftH 11:58a 3.1 ftL 2:53p 2.8 ftH 7:05p 2.9 ft9:43a / 5:58pMajor 5:45a-7:45aMinor 1:48p-2:48pMajor 6:20p-8:20p
30 MonL 2:21a -0.5 ftH 12:03p 3.0 ftL 4:09p 2.2 ftH 8:46p 2.4 ft9:44a / 5:58pMinor 11:54p-12:54aMajor 6:34a-8:34aMinor 2:04p-3:04pMajor 7:08p-9:08p
Last Quarter Nov 1New Moon Nov 8First Quarter Nov 16Full Moon Nov 23Last Quarter Nov 30

Solunar windows: major windows are lunar transits (2 hours), minor windows are moonrise and moonset (1 hour). Stars count three factors: a major window, overlap with sunrise or sunset, and a high or low tide inside the window.

King tides at Constantine Harbor, Amchitka Island

The highest predicted high tides and lowest predicted low tides at this station for each month, taken from the tables above.

October 2026

Highest high tides
  1. Thu, Oct 29, 4:29p: 3.4 ft
  2. Wed, Oct 28, 3:29p: 3.4 ft
  3. Fri, Oct 30, 5:46p: 3.3 ft
Lowest low tides
  1. Fri, Oct 30, 1:09a: -1.0 ft
  2. Sat, Oct 31, 2:01a: -1.0 ft
  3. Thu, Oct 29, 12:16a: -0.9 ft
Low tides below 0.0 ft on 17 days: Oct 1, Oct 2, Oct 3, Oct 4, Oct 5, Oct 6, Oct 13, Oct 14, Oct 15, Oct 16, Oct 17, Oct 18, Oct 26, Oct 27, Oct 29, Oct 30, Oct 31.

November 2026

Highest high tides
  1. Wed, Nov 25, 2:12p: 3.9 ft
  2. Thu, Nov 26, 3:05p: 3.9 ft
  3. Tue, Nov 24, 1:32p: 3.8 ft
Lowest low tides
  1. Thu, Nov 26, 11:55p: -1.2 ft
  2. Wed, Nov 25, 11:02p: -1.1 ft
  3. Sat, Nov 28, 12:46a: -1.1 ft
Low tides below 0.0 ft on 17 days: Nov 1, Nov 2, Nov 8, Nov 9, Nov 10, Nov 12, Nov 13, Nov 14, Nov 15, Nov 22, Nov 23, Nov 24, Nov 25, Nov 26, Nov 28, Nov 29, Nov 30.

Best fishing times at Constantine Harbor, Amchitka Island

Days with the highest-rated solunar windows each month, with the major window times. Solunar windows are a fishing-planning method, not a forecast of catches.

October 2026

  1. Thu, Oct 1: 5:07a-7:07a5:37p-7:37p
  2. Fri, Oct 2: 6:09a-8:09a6:42p-8:42p
  3. Sat, Oct 3: 7:10a-9:10a7:45p-9:45p
  4. Fri, Oct 30: 5:03a-7:03a5:39p-7:39p
  5. Sat, Oct 31: 6:03a-8:03a6:39p-8:39p

November 2026

  1. Sun, Nov 1: 6:59a-8:59a7:34p-9:34p
  2. Mon, Nov 2: 7:50a-9:50a8:23p-10:23p
  3. Mon, Nov 16: 6:31a-8:31a7:01p-9:01p
  4. Sat, Nov 28: 4:51a-6:51a5:28p-7:28p
  5. Sun, Nov 29: 5:45a-7:45a6:20p-8:20p

Station details

NOAA station
TWC2303
Prediction type
Subordinate (offsets)
Coordinates
51.417, 179.283
Time zone
Hawaii-Aleutian Standard Time

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About these predictions

Predictions for Constantine Harbor, Amchitka Island are computed from NOAA CO-OPS harmonic constituents with Ebb's tide engine, using NOAA's published time and height offsets for this subordinate station. They are astronomical predictions and do not include the effect of wind, pressure or river flow on water levels. Ebb is not a navigation product. Use NOAA Tides & Currents for navigation.