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Chowiet Island, Semidi Island tide times

High and low tides, king tides and solunar fishing times for Chowiet Island, Semidi Island, Alaska, NOAA station 9458519. 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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Chowiet Island, Semidi Island tide table, October 2026

DayHigh and low tides (ft above MLLW)Sunrise / sunsetSolunar windows
1 ThuH 4:16a 7.3 ftL 9:22a 3.2 ftH 3:34p 9.7 ftL 10:39p -0.6 ft6:30a / 6:01pMajor 3:27a-5:27aMinor 1:45p-2:45pMajor 3:57p-5:57pMinor 7:08p-8:08p
2 FriH 5:19a 6.7 ftL 10:04a 3.9 ftH 4:25p 9.2 ftL 11:46p 0.1 ft6:32a / 5:58pMajor 4:29a-6:29aMinor 2:47p-3:47pMajor 5:02p-7:02pMinor 8:17p-9:17p
3 SatH 6:38a 6.2 ftL 11:07a 4.5 ftH 5:34p 8.5 ft6:34a / 5:55pMajor 5:30a-7:30aMinor 3:24p-4:24pMajor 6:05p-8:05pMinor 9:46p-10:46p
4 SunL 1:09a 0.5 ftH 8:06a 6.3 ftL 1:01p 4.7 ftH 7:05p 8.0 ft6:36a / 5:53pMajor 6:28a-8:28aMinor 3:47p-4:47pMajor 7:04p-9:04pMinor 11:22p-12:22a
5 MonL 2:34a 0.7 ftH 9:23a 6.8 ftL 2:55p 4.2 ftH 8:37p 7.9 ft6:38a / 5:50pMajor 7:21a-9:21aMinor 4:00p-5:00pMajor 7:58p-9:58p
6 TueL 3:44a 0.6 ftH 10:17a 7.5 ftL 4:10p 3.1 ftH 9:56p 8.1 ft6:40a / 5:47pMinor 12:57a-1:57aMajor 8:11a-10:11aMinor 4:10p-5:10pMajor 8:47p-10:47p
7 WedL 4:37a 0.5 ftH 10:58a 8.3 ftL 5:05p 1.9 ftH 11:00p 8.5 ft6:42a / 5:45pMinor 2:28a-3:28aMajor 8:58a-10:58aMinor 4:17p-5:17pMajor 9:34p-11:34p
8 ThuL 5:21a 0.6 ftH 11:33a 8.9 ftL 5:49p 0.8 ftH 11:51p 8.8 ft6:44a / 5:42pMinor 3:55a-4:55aMajor 9:43a-11:43aMinor 4:24p-5:24pMajor 10:18p-12:18a
9 FriL 5:59a 0.8 ftH 12:05p 9.5 ftL 6:29p -0.1 ft6:46a / 5:40pMinor 5:21a-6:21aMajor 10:28a-12:28pMinor 4:30p-5:30p
10 SatH 12:37a 8.9 ftL 6:34a 1.2 ftH 12:36p 9.8 ftL 7:06p -0.6 ft6:48a / 5:37pMajor 11:02p-1:02aMinor 6:46a-7:46aMajor 11:13a-1:13pMinor 4:37p-5:37p
11 SunH 1:18a 8.8 ftL 7:07a 1.7 ftH 1:06p 10.0 ftL 7:42p -0.9 ft6:50a / 5:35pMajor 11:46p-1:46aMinor 8:11a-9:11aMajor 11:59a-1:59pMinor 4:46p-5:46p
12 MonH 1:58a 8.5 ftL 7:38a 2.2 ftH 1:36p 9.9 ftL 8:17p -0.9 ft6:52a / 5:32pMajor 12:32a-2:32aMinor 9:36a-10:36aMajor 12:48p-2:48pMinor 4:58p-5:58p
13 TueH 2:37a 8.2 ftL 8:08a 2.7 ftH 2:06p 9.6 ftL 8:52p -0.6 ft6:54a / 5:30pMajor 1:19a-3:19aMinor 10:59a-11:59aMajor 1:38p-3:38pMinor 5:17p-6:17p
14 WedH 3:16a 7.7 ftL 8:37a 3.2 ftH 2:36p 9.2 ftL 9:28p -0.2 ft6:56a / 5:27pMajor 2:08a-4:08aMinor 12:15p-1:15pMajor 2:31p-4:31pMinor 5:46p-6:46p
15 ThuH 3:58a 7.1 ftL 9:05a 3.7 ftH 3:07p 8.7 ftL 10:08p 0.4 ft6:58a / 5:25pMajor 2:59a-4:59aMinor 1:18p-2:18pMajor 3:24p-5:24pMinor 6:31p-7:31p
16 FriH 4:46a 6.5 ftL 9:34a 4.2 ftH 3:43p 8.2 ftL 10:54p 1.0 ft7:00a / 5:22pMajor 3:49a-5:49aMinor 2:02p-3:02pMajor 4:17p-6:17pMinor 7:32p-8:32p
17 SatH 5:47a 6.1 ftL 10:11a 4.7 ftH 4:27p 7.6 ftL 11:55p 1.6 ft7:03a / 5:20pMajor 4:39a-6:39aMinor 2:31p-3:31pMajor 5:09p-7:09pMinor 8:46p-9:46p
18 SunH 7:03a 5.9 ftL 11:20a 5.1 ftH 5:35p 7.0 ft7:05a / 5:17pMajor 5:27a-7:27aMinor 2:50p-3:50pMajor 5:58p-7:58pMinor 10:06p-11:06p
19 MonL 1:13a 1.9 ftH 8:18a 6.1 ftL 1:37p 5.0 ftH 7:10p 6.7 ft7:07a / 5:15pMajor 6:13a-8:13aMinor 3:02p-4:02pMajor 6:45p-8:45pMinor 11:28p-12:28a
20 TueL 2:27a 2.0 ftH 9:15a 6.6 ftL 3:10p 4.3 ftH 8:35p 6.7 ft7:09a / 5:12pMajor 6:57a-8:57aMinor 3:11p-4:11pMajor 7:30p-9:30p
21 WedL 3:24a 1.9 ftH 9:56a 7.3 ftL 4:05p 3.3 ftH 9:45p 7.1 ft7:11a / 5:10pMinor 12:50a-1:50aMajor 7:41a-9:41aMinor 3:18p-4:18pMajor 8:14p-10:14p
22 ThuL 4:10a 1.8 ftH 10:29a 8.0 ftL 4:47p 2.2 ftH 10:42p 7.6 ft7:13a / 5:07pMinor 2:13a-3:13aMajor 8:23a-10:23aMinor 3:25p-4:25pMajor 8:57p-10:57p
23 FriL 4:48a 1.7 ftH 11:00a 8.7 ftL 5:24p 1.0 ftH 11:31p 8.1 ft7:15a / 5:05pMinor 3:37a-4:37aMajor 9:07a-11:07aMinor 3:31p-4:31pMajor 9:42p-11:42p
24 SatL 5:24a 1.8 ftH 11:31a 9.4 ftL 6:01p -0.2 ft7:17a / 5:03pMinor 5:05a-6:05aMajor 9:53a-11:53aMinor 3:38p-4:38pMajor 10:30p-12:30a
25 SunH 12:16a 8.5 ftL 5:59a 1.9 ftH 12:02p 10.0 ftL 6:38p -1.1 ft7:19a / 5:00pMinor 6:37a-7:37aMajor 10:43a-12:43pMinor 3:48p-4:48p
26 MonH 1:00a 8.7 ftL 6:34a 2.2 ftH 12:35p 10.5 ftL 7:18p -1.8 ft7:21a / 4:58pMajor 11:21p-1:21aMinor 8:14a-9:14aMajor 11:38a-1:38pMinor 4:02p-5:02p
27 TueH 1:44a 8.7 ftL 7:10a 2.5 ftH 1:11p 10.8 ftL 8:00p -2.1 ft7:24a / 4:56pMajor 12:16a-2:16aMinor 9:54a-10:54aMajor 12:39p-2:39pMinor 4:25p-5:25p
28 WedH 2:30a 8.5 ftL 7:47a 2.9 ftH 1:49p 10.8 ftL 8:46p -2.1 ft7:26a / 4:54pMajor 1:17a-3:17aMinor 11:27a-12:27pMajor 1:45p-3:45pMinor 5:03p-6:03p
29 ThuH 3:20a 8.0 ftL 8:28a 3.3 ftH 2:31p 10.5 ftL 9:35p -1.6 ft7:28a / 4:51pMajor 2:20a-4:20aMinor 12:39p-1:39pMajor 2:53p-4:53pMinor 6:07p-7:07p
30 FriH 4:14a 7.5 ftL 9:14a 3.8 ftH 3:19p 9.9 ftL 10:29p -1.0 ft7:30a / 4:49pMajor 3:23a-5:23aMinor 1:25p-2:25pMajor 3:59p-5:59pMinor 7:32p-8:32p
31 SatH 5:16a 7.1 ftL 10:12a 4.2 ftH 4:17p 9.1 ftL 11:32p -0.2 ft7:32a / 4:47pMajor 4:23a-6:23aMinor 1:52p-2:52pMajor 5:00p-7:00pMinor 9:08p-10:08p
Last Quarter Oct 2New Moon Oct 9First Quarter Oct 17Full Moon Oct 25

Chowiet Island, Semidi Island tide table, November 2026

DayHigh and low tides (ft above MLLW)Sunrise / sunsetSolunar windows
1 SunH 6:27a 7.0 ftL 11:33a 4.5 ftH 5:31p 8.2 ft7:34a / 4:45pMajor 5:18a-7:18aMinor 2:08p-3:08pMajor 5:55p-7:55pMinor 10:43p-11:43p
2 MonL 12:45a 0.6 ftH 7:38a 7.2 ftL 1:21p 4.2 ftH 7:01p 7.5 ft7:36a / 4:43pMajor 6:09a-8:09aMinor 2:18p-3:18pMajor 6:45p-8:45p
3 TueL 1:59a 1.1 ftH 8:40a 7.7 ftL 2:54p 3.3 ftH 8:30p 7.2 ft7:39a / 4:40pMinor 12:14a-1:14aMajor 6:56a-8:56aMinor 2:26p-3:26pMajor 7:31p-9:31p
4 WedL 3:05a 1.5 ftH 9:32a 8.3 ftL 4:01p 2.1 ftH 9:49p 7.3 ft7:41a / 4:38pMinor 1:41a-2:41aMajor 7:41a-9:41aMinor 2:33p-3:33pMajor 8:15p-10:15p
5 ThuL 3:59a 1.8 ftH 10:14a 8.8 ftL 4:52p 1.0 ftH 10:53p 7.6 ft7:43a / 4:36pMinor 3:05a-4:05aMajor 8:25a-10:25aMinor 2:39p-3:39pMajor 8:58p-10:58p
6 FriL 4:45a 2.1 ftH 10:52a 9.4 ftL 5:34p 0.1 ftH 11:45p 7.9 ft7:45a / 4:34pMinor 4:28a-5:28aMajor 9:09a-11:09aMinor 2:46p-3:46pMajor 9:42p-11:42p
7 SatL 5:25a 2.4 ftH 11:26a 9.7 ftL 6:12p -0.6 ft7:47a / 4:32pMinor 5:51a-6:51aMajor 9:54a-11:54aMinor 2:55p-3:55pMajor 10:26p-12:26a
8 SunH 12:29a 8.0 ftL 6:01a 2.7 ftH 11:59a 9.9 ftL 6:48p -1.0 ft7:49a / 4:30pMinor 7:15a-8:15aMajor 10:41a-12:41pMinor 3:06p-4:06p
9 MonH 1:08a 8.1 ftL 6:35a 3.0 ftH 12:31p 10.0 ftL 7:22p -1.1 ft7:51a / 4:28pMajor 11:13p-1:13aMinor 8:39a-9:39aMajor 11:31a-1:31pMinor 3:22p-4:22p
10 TueH 1:46a 8.0 ftL 7:08a 3.3 ftH 1:02p 9.9 ftL 7:56p -1.1 ft7:53a / 4:26pMajor 12:01a-2:01aMinor 9:58a-10:58aMajor 12:23p-2:23pMinor 3:47p-4:47p
11 WedH 2:24a 7.8 ftL 7:39a 3.5 ftH 1:34p 9.6 ftL 8:30p -0.8 ft7:56a / 4:25pMajor 12:52a-2:52aMinor 11:06a-12:06pMajor 1:16p-3:16pMinor 4:26p-5:26p
12 ThuH 3:02a 7.5 ftL 8:11a 3.8 ftH 2:06p 9.3 ftL 9:06p -0.4 ft7:58a / 4:23pMajor 1:42a-3:42aMinor 11:57a-12:57pMajor 2:09p-4:09pMinor 5:21p-6:21p
13 FriH 3:43a 7.2 ftL 8:44a 4.1 ftH 2:40p 8.8 ftL 9:44p 0.0 ft8:00a / 4:21pMajor 2:32a-4:32aMinor 12:31p-1:31pMajor 3:01p-5:01pMinor 6:31p-7:31p
14 SatH 4:28a 6.9 ftL 9:21a 4.4 ftH 3:16p 8.3 ftL 10:25p 0.6 ft8:02a / 4:19pMajor 3:21a-5:21aMinor 12:53p-1:53pMajor 3:51p-5:51pMinor 7:48p-8:48p
15 SunH 5:20a 6.7 ftL 10:08a 4.7 ftH 4:00p 7.7 ftL 11:11p 1.1 ft8:04a / 4:17pMajor 4:07a-6:07aMinor 1:08p-2:08pMajor 4:38p-6:38pMinor 9:08p-10:08p
16 MonH 6:16a 6.7 ftL 11:16a 4.8 ftH 4:59p 7.0 ft8:06a / 4:16pMajor 4:51a-6:51aMinor 1:18p-2:18pMajor 5:22p-7:22pMinor 10:29p-11:29p
17 TueL 12:05a 1.6 ftH 7:12a 6.9 ftL 12:53p 4.6 ftH 6:21p 6.5 ft8:08a / 4:14pMajor 5:34a-7:34aMinor 1:26p-2:26pMajor 6:06p-8:06p
18 WedL 1:06a 2.1 ftH 8:01a 7.3 ftL 2:19p 3.8 ftH 7:49p 6.3 ft8:10a / 4:13pMinor 11:49p-12:49aMajor 6:15a-8:15aMinor 1:32p-2:32pMajor 6:48p-8:48p
19 ThuL 2:06a 2.4 ftH 8:45a 7.8 ftL 3:21p 2.7 ftH 9:07p 6.5 ft8:12a / 4:11pMinor 1:10a-2:10aMajor 6:58a-8:58aMinor 1:38p-2:38pMajor 7:32p-9:32p
20 FriL 3:00a 2.7 ftH 9:25a 8.4 ftL 4:10p 1.5 ftH 10:14p 6.9 ft8:14a / 4:10pMinor 2:33a-3:33aMajor 7:42a-9:42aMinor 1:45p-2:45pMajor 8:17p-10:17p
21 SatL 3:50a 2.8 ftH 10:04a 9.1 ftL 4:54p 0.2 ftH 11:11p 7.4 ft8:16a / 4:08pMinor 4:02a-5:02aMajor 8:29a-10:29aMinor 1:54p-2:54pMajor 9:06p-11:06p
22 SunL 4:36a 3.0 ftH 10:44a 9.8 ftL 5:36p -0.9 ft8:18a / 4:07pMinor 5:36a-6:36aMajor 9:21a-11:21aMinor 2:05p-3:05pMajor 9:59p-11:59p
23 MonH 12:02a 7.9 ftL 5:20a 3.1 ftH 11:24a 10.4 ftL 6:19p -1.9 ft8:20a / 4:05pMinor 7:15a-8:15aMajor 10:20a-12:20pMinor 2:24p-3:24pMajor 10:58p-12:58a
24 TueH 12:50a 8.2 ftL 6:03a 3.2 ftH 12:05p 10.9 ftL 7:04p -2.4 ft8:22a / 4:04pMinor 8:54a-9:54aMajor 11:25a-1:25pMinor 2:55p-3:55p
25 WedH 1:37a 8.3 ftL 6:47a 3.3 ftH 12:48p 11.1 ftL 7:50p -2.7 ft8:24a / 4:03pMajor 12:02a-2:02aMinor 10:19a-11:19aMajor 12:34p-2:34pMinor 3:48p-4:48p
26 ThuH 2:25a 8.3 ftL 7:33a 3.4 ftH 1:33p 11.1 ftL 8:38p -2.5 ft8:25a / 4:02pMajor 1:07a-3:07aMinor 11:18a-12:18pMajor 1:43p-3:43pMinor 5:09p-6:09p
27 FriH 3:14a 8.1 ftL 8:23a 3.5 ftH 2:22p 10.6 ftL 9:27p -2.0 ft8:27a / 4:00pMajor 2:11a-4:11aMinor 11:53a-12:53pMajor 2:49p-4:49pMinor 6:46p-7:46p
28 SatH 4:06a 8.0 ftL 9:18a 3.7 ftH 3:15p 9.9 ftL 10:18p -1.2 ft8:29a / 3:59pMajor 3:11a-5:11aMinor 12:13p-1:13pMajor 3:49p-5:49pMinor 8:25p-9:25p
29 SunH 5:00a 7.9 ftL 10:22a 3.7 ftH 4:15p 8.9 ftL 11:11p -0.3 ft8:31a / 3:58pMajor 4:05a-6:05aMinor 12:26p-1:26pMajor 4:42p-6:42pMinor 10:00p-11:00p
30 MonH 5:57a 7.9 ftL 11:39a 3.7 ftH 5:25p 7.9 ft8:32a / 3:57pMajor 4:54a-6:54aMinor 12:35p-1:35pMajor 5:30p-7:30pMinor 11:29p-12:29a
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 Chowiet Island, Semidi 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. Wed, Oct 28, 1:49p: 10.8 ft
  2. Tue, Oct 27, 1:11p: 10.8 ft
  3. Mon, Oct 26, 12:35p: 10.5 ft
Lowest low tides
  1. Tue, Oct 27, 8:00p: -2.1 ft
  2. Wed, Oct 28, 8:46p: -2.1 ft
  3. Mon, Oct 26, 7:18p: -1.8 ft
Low tides below 0.0 ft on 15 days: Oct 1, Oct 9, Oct 10, Oct 11, Oct 12, Oct 13, Oct 14, Oct 24, Oct 25, Oct 26, Oct 27, Oct 28, Oct 29, Oct 30, Oct 31.

November 2026

Highest high tides
  1. Wed, Nov 25, 12:48p: 11.1 ft
  2. Thu, Nov 26, 1:33p: 11.1 ft
  3. Tue, Nov 24, 12:05p: 10.9 ft
Lowest low tides
  1. Wed, Nov 25, 7:50p: -2.7 ft
  2. Thu, Nov 26, 8:38p: -2.5 ft
  3. Tue, Nov 24, 7:04p: -2.4 ft
Low tides below 0.0 ft on 14 days: Nov 7, Nov 8, Nov 9, Nov 10, Nov 11, Nov 12, Nov 22, Nov 23, Nov 24, Nov 25, Nov 26, Nov 27, Nov 28, Nov 29.

Best fishing times at Chowiet Island, Semidi 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. Fri, Oct 2: 4:29a-6:29a5:02p-7:02p
  2. Sat, Oct 3: 5:30a-7:30a6:05p-8:05p
  3. Sun, Oct 4: 6:28a-8:28a7:04p-9:04p
  4. Wed, Oct 14: 2:08a-4:08a2:31p-4:31p
  5. Sat, Oct 17: 4:39a-6:39a5:09p-7:09p

November 2026

  1. Mon, Nov 2: 6:09a-8:09a6:45p-8:45p
  2. Tue, Nov 3: 6:56a-8:56a7:31p-9:31p
  3. Wed, Nov 4: 7:41a-9:41a8:15p-10:15p
  4. Thu, Nov 5: 8:25a-10:25a8:58p-10:58p
  5. Tue, Nov 17: 5:34a-7:34a6:06p-8:06p

Station details

NOAA station
9458519
Prediction type
Harmonic (reference)
Coordinates
56.052, -156.698
Time zone
Hawaii-Aleutian Standard Time

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Tide times near Chowiet Island, Semidi Island

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All Alaska stationsAlaska king tidesAll states

About these predictions

Predictions for Chowiet Island, Semidi Island are computed from NOAA CO-OPS harmonic constituents with Ebb's tide engine. 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.