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Castle Islands, Duncan Canal tide times

High and low tides, king tides and solunar fishing times for Castle Islands, Duncan Canal, Alaska, NOAA station 9451321. Times are local (Alaska Time). Heights are feet above Mean Lower Low Water (MLLW).

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

Tide tables King tides Best fishing times Alaska king tides

Castle Islands, Duncan Canal tide table, October 2026

Day	High and low tides (ft above MLLW)	Sunrise / sunset	Solunar windows
1 Thu	H 4:49a 14.0 ftL 10:10a 3.2 ftH 4:35p 16.4 ftL 11:04p -0.4 ft	6:56a / 6:26p	Major 3:49a-5:49aMinor 2:13p-3:13pMajor 4:18p-6:18pMinor 7:23p-8:23p
2 Fri	H 5:48a 12.6 ftL 11:00a 4.6 ftH 5:31p 15.1 ft	6:58a / 6:23p	Major 4:51a-6:51aMinor 3:16p-4:16pMajor 5:24p-7:24pMinor 8:31p-9:31p
3 Sat	L 12:06a 0.8 ftH 7:06a 11.7 ftL 12:04p 5.8 ftH 6:50p 13.9 ft	7:00a / 6:21p	Major 5:52a-7:52aMinor 3:54p-4:54pMajor 6:27p-8:27pMinor 10:01p-11:01p
4 Sun	L 1:25a 1.8 ftH 8:34a 11.7 ftL 1:36p 6.4 ftH 8:24p 13.4 ft	7:02a / 6:18p	Major 6:50a-8:50aMinor 4:15p-5:15pMajor 7:26p-9:26p
5 Mon	L 3:03a 2.0 ftH 9:49a 12.6 ftL 3:36p 5.7 ftH 9:45p 13.9 ft	7:04a / 6:15p	Minor 11:38p-12:38aMajor 7:44a-9:44aMinor 4:28p-5:28pMajor 8:20p-10:20p
6 Tue	L 4:25a 1.4 ftH 10:47a 13.9 ftL 4:56p 3.8 ftH 10:50p 14.7 ft	7:06a / 6:13p	Minor 1:14a-2:14aMajor 8:34a-10:34aMinor 4:37p-5:37pMajor 9:10p-11:10p
7 Wed	L 5:20a 0.6 ftH 11:33a 15.3 ftL 5:48p 1.9 ftH 11:46p 15.6 ft	7:08a / 6:10p	Minor 2:47a-3:47aMajor 9:21a-11:21aMinor 4:43p-5:43pMajor 9:57p-11:57p
8 Thu	L 6:03a 0.1 ftH 12:14p 16.5 ftL 6:29p 0.2 ft	7:10a / 6:08p	Minor 4:15a-5:15aMajor 10:06a-12:06pMinor 4:49p-5:49pMajor 10:41p-12:41a
9 Fri	H 12:34a 16.2 ftL 6:40a -0.1 ftH 12:52p 17.4 ftL 7:06p -1.0 ft	7:13a / 6:05p	Minor 5:42a-6:42aMajor 10:51a-12:51pMinor 4:54p-5:54p
10 Sat	H 1:17a 16.5 ftL 7:12a 0.1 ftH 1:27p 17.9 ftL 7:39p -1.8 ft	7:15a / 6:02p	Major 11:25p-1:25aMinor 7:08a-8:08aMajor 11:35a-1:35pMinor 5:01p-6:01p
11 Sun	H 1:57a 16.5 ftL 7:43a 0.6 ftH 2:01p 18.0 ftL 8:12p -1.9 ft	7:17a / 6:00p	Major 12:09a-2:09aMinor 8:34a-9:34aMajor 12:22p-2:22pMinor 5:08p-6:08p
12 Mon	H 2:35a 16.2 ftL 8:12a 1.3 ftH 2:33p 17.7 ftL 8:43p -1.7 ft	7:19a / 5:57p	Major 12:55a-2:55aMinor 10:00a-11:00aMajor 1:10p-3:10pMinor 5:19p-6:19p
13 Tue	H 3:12a 15.5 ftL 8:42a 2.2 ftH 3:06p 17.0 ftL 9:16p -1.0 ft	7:21a / 5:55p	Major 1:42a-3:42aMinor 11:25a-12:25pMajor 2:01p-4:01pMinor 5:36p-6:36p
14 Wed	H 3:50a 14.5 ftL 9:13a 3.2 ftH 3:38p 16.1 ftL 9:51p -0.1 ft	7:23a / 5:52p	Major 2:31a-4:31aMinor 12:43p-1:43pMajor 2:53p-4:53pMinor 6:03p-7:03p
15 Thu	H 4:31a 13.4 ftL 9:46a 4.3 ftH 4:12p 15.0 ftL 10:31p 1.1 ft	7:25a / 5:49p	Major 3:21a-5:21aMinor 1:47p-2:47pMajor 3:46p-5:46pMinor 6:46p-7:46p
16 Fri	H 5:18a 12.2 ftL 10:24a 5.4 ftH 4:51p 13.7 ftL 11:17p 2.2 ft	7:27a / 5:47p	Major 4:12a-6:12aMinor 2:32p-3:32pMajor 4:40p-6:40pMinor 7:47p-8:47p
17 Sat	H 6:17a 11.2 ftL 11:11a 6.4 ftH 5:45p 12.5 ft	7:29a / 5:44p	Major 5:02a-7:02aMinor 3:01p-4:01pMajor 5:31p-7:31pMinor 9:01p-10:01p
18 Sun	L 12:13a 3.2 ftH 7:33a 10.8 ftL 12:16p 7.1 ftH 7:09p 11.6 ft	7:32a / 5:42p	Major 5:50a-7:50aMinor 3:19p-4:19pMajor 6:21p-8:21pMinor 10:23p-11:23p
19 Mon	L 1:25a 3.8 ftH 8:51a 11.1 ftL 1:51p 7.2 ftH 8:37p 11.5 ft	7:34a / 5:39p	Major 6:36a-8:36aMinor 3:31p-4:31pMajor 7:08p-9:08p
20 Tue	L 2:52a 3.8 ftH 9:50a 12.0 ftL 3:40p 6.2 ftH 9:47p 12.1 ft	7:36a / 5:37p	Minor 11:46p-12:46aMajor 7:20a-9:20aMinor 3:39p-4:39pMajor 7:53p-9:53p
21 Wed	L 4:01a 3.2 ftH 10:35a 13.2 ftL 4:41p 4.5 ftH 10:42p 13.0 ft	7:38a / 5:34p	Minor 1:09a-2:09aMajor 8:03a-10:03aMinor 3:45p-4:45pMajor 8:37p-10:37p
22 Thu	L 4:49a 2.4 ftH 11:14a 14.5 ftL 5:22p 2.6 ftH 11:30p 14.1 ft	7:40a / 5:32p	Minor 2:33a-3:33aMajor 8:46a-10:46aMinor 3:50p-4:50pMajor 9:21p-11:21p
23 Fri	L 5:27a 1.7 ftH 11:49a 15.8 ftL 5:58p 0.8 ft	7:42a / 5:29p	Minor 3:57a-4:57aMajor 9:30a-11:30aMinor 3:56p-4:56pMajor 10:05p-12:05a
24 Sat	H 12:14a 15.1 ftL 6:03a 1.2 ftH 12:24p 17.0 ftL 6:34p -1.0 ft	7:45a / 5:27p	Minor 5:26a-6:26aMajor 10:16a-12:16pMinor 4:02p-5:02pMajor 10:53p-12:53a
25 Sun	H 12:57a 15.9 ftL 6:38a 1.0 ftH 12:59p 17.9 ftL 7:10p -2.3 ft	7:47a / 5:25p	Minor 6:58a-7:58aMajor 11:06a-1:06pMinor 4:11p-5:11p
26 Mon	H 1:39a 16.4 ftL 7:13a 1.0 ftH 1:35p 18.6 ftL 7:48p -3.2 ft	7:49a / 5:22p	Major 11:43p-1:43aMinor 8:37a-9:37aMajor 12:00p-2:00pMinor 4:23p-5:23p
27 Tue	H 2:21a 16.5 ftL 7:50a 1.3 ftH 2:12p 18.9 ftL 8:28p -3.4 ft	7:51a / 5:20p	Major 12:39a-2:39aMinor 10:18a-11:18aMajor 1:01p-3:01pMinor 4:43p-5:43p
28 Wed	H 3:04a 16.2 ftL 8:29a 2.0 ftH 2:51p 18.7 ftL 9:12p -3.0 ft	7:53a / 5:18p	Major 1:38a-3:38aMinor 11:53a-12:53pMajor 2:06p-4:06pMinor 5:19p-6:19p
29 Thu	H 3:51a 15.4 ftL 9:11a 2.9 ftH 3:34p 17.9 ftL 10:00p -2.1 ft	7:55a / 5:15p	Major 2:41a-4:41aMinor 1:08p-2:08pMajor 3:14p-5:14pMinor 6:21p-7:21p
30 Fri	H 4:43a 14.4 ftL 9:59a 4.0 ftH 4:24p 16.7 ftL 10:55p -0.9 ft	7:58a / 5:13p	Major 3:45a-5:45aMinor 1:54p-2:54pMajor 4:20p-6:20pMinor 7:46p-8:46p
31 Sat	H 5:43a 13.4 ftL 10:58a 5.0 ftH 5:25p 15.2 ftL 11:57p 0.5 ft	8:00a / 5:11p	Major 4:45a-6:45aMinor 2:21p-3:21pMajor 5:22p-7:22pMinor 9:24p-10:24p

Last Quarter Oct 2New Moon Oct 9First Quarter Oct 17Full Moon Oct 25

Castle Islands, Duncan Canal tide table, November 2026

Day	High and low tides (ft above MLLW)	Sunrise / sunset	Solunar windows
1 Sun	H 5:55a 12.9 ftL 11:11a 5.7 ftH 5:43p 13.8 ft	7:02a / 4:09p	Major 4:41a-6:41aMinor 1:36p-2:36pMajor 5:17p-7:17pMinor 10:00p-11:00p
2 Mon	L 12:10a 1.6 ftH 7:11a 13.0 ftL 12:46p 5.8 ftH 7:10p 13.1 ft	7:04a / 4:06p	Major 5:32a-7:32aMinor 1:46p-2:46pMajor 6:08p-8:08p
3 Tue	L 1:32a 2.2 ftH 8:18a 13.8 ftL 2:30p 4.6 ftH 8:29p 13.3 ft	7:06a / 4:04p	Minor 11:33p-12:33aMajor 6:19a-8:19aMinor 1:53p-2:53pMajor 6:54p-8:54p
4 Wed	L 2:48a 2.3 ftH 9:13a 14.9 ftL 3:41p 2.9 ftH 9:34p 13.8 ft	7:09a / 4:02p	Minor 1:00a-2:00aMajor 7:04a-9:04aMinor 1:59p-2:59pMajor 7:38p-9:38p
5 Thu	L 3:46a 2.1 ftH 9:59a 15.9 ftL 4:31p 1.2 ftH 10:28p 14.4 ft	7:11a / 4:00p	Minor 2:25a-3:25aMajor 7:48a-9:48aMinor 2:04p-3:04pMajor 8:21p-10:21p
6 Fri	L 4:31a 2.1 ftH 10:41a 16.8 ftL 5:12p -0.1 ftH 11:17p 14.9 ft	7:13a / 3:58p	Minor 3:49a-4:49aMajor 8:31a-10:31aMinor 2:10p-3:10pMajor 9:05p-11:05p
7 Sat	L 5:09a 2.1 ftH 11:19a 17.4 ftL 5:47p -1.1 ft	7:15a / 3:56p	Minor 5:14a-6:14aMajor 9:16a-11:16aMinor 2:17p-3:17pMajor 9:49p-11:49p
8 Sun	H 12:00a 15.2 ftL 5:43a 2.3 ftH 11:55a 17.7 ftL 6:19p -1.6 ft	7:17a / 3:54p	Minor 6:39a-7:39aMajor 10:04a-12:04pMinor 2:27p-3:27pMajor 10:36p-12:36a
9 Mon	H 12:40a 15.4 ftL 6:14a 2.6 ftH 12:30p 17.7 ftL 6:51p -1.7 ft	7:19a / 3:52p	Minor 8:04a-9:04aMajor 10:53a-12:53pMinor 2:42p-3:42p
10 Tue	H 1:18a 15.3 ftL 6:45a 3.1 ftH 1:05p 17.5 ftL 7:22p -1.4 ft	7:22a / 3:50p	Major 11:24p-1:24aMinor 9:25a-10:25aMajor 11:45a-1:45pMinor 3:05p-4:05p
11 Wed	H 1:55a 15.0 ftL 7:16a 3.6 ftH 1:38p 16.9 ftL 7:54p -0.9 ft	7:24a / 3:48p	Major 12:14a-2:14aMinor 10:35a-11:35aMajor 12:38p-2:38pMinor 3:42p-4:42p
12 Thu	H 2:33a 14.4 ftL 7:48a 4.2 ftH 2:13p 16.2 ftL 8:30p -0.2 ft	7:26a / 3:46p	Major 1:05a-3:05aMinor 11:27a-12:27pMajor 1:32p-3:32pMinor 4:36p-5:36p
13 Fri	H 3:14a 13.7 ftL 8:24a 4.9 ftH 2:48p 15.2 ftL 9:08p 0.6 ft	7:28a / 3:44p	Major 1:55a-3:55aMinor 12:01p-1:01pMajor 2:24p-4:24pMinor 5:46p-6:46p
14 Sat	H 3:59a 12.9 ftL 9:05a 5.6 ftH 3:27p 14.1 ftL 9:52p 1.5 ft	7:30a / 3:42p	Major 2:43a-4:43aMinor 12:22p-1:22pMajor 3:13p-5:13pMinor 7:05p-8:05p
15 Sun	H 4:50a 12.2 ftL 9:55a 6.2 ftH 4:15p 12.9 ftL 10:40p 2.3 ft	7:32a / 3:40p	Major 3:30a-5:30aMinor 12:36p-1:36pMajor 4:01p-6:01pMinor 8:26p-9:26p
16 Mon	H 5:50a 11.9 ftL 10:55a 6.5 ftH 5:22p 11.9 ftL 11:34p 2.9 ft	7:34a / 3:39p	Major 4:14a-6:14aMinor 12:45p-1:45pMajor 4:45p-6:45pMinor 9:47p-10:47p
17 Tue	H 6:53a 12.1 ftL 12:09p 6.4 ftH 6:44p 11.4 ft	7:37a / 3:37p	Major 4:57a-6:57aMinor 12:52p-1:52pMajor 5:29p-7:29pMinor 11:08p-12:08a
18 Wed	L 12:34a 3.4 ftH 7:51a 12.7 ftL 1:32p 5.6 ftH 7:59p 11.5 ft	7:39a / 3:35p	Major 5:38a-7:38aMinor 12:58p-1:58pMajor 6:11p-8:11p
19 Thu	L 1:39a 3.6 ftH 8:39a 13.7 ftL 2:44p 4.1 ftH 9:01p 12.2 ft	7:41a / 3:34p	Minor 12:30a-1:30aMajor 6:20a-8:20aMinor 1:04p-2:04pMajor 6:55p-8:55p
20 Fri	L 2:40a 3.5 ftH 9:22a 14.9 ftL 3:38p 2.3 ftH 9:56p 13.2 ft	7:43a / 3:32p	Minor 1:54a-2:54aMajor 7:04a-9:04aMinor 1:10p-2:10pMajor 7:40p-9:40p
21 Sat	L 3:32a 3.2 ftH 10:03a 16.1 ftL 4:24p 0.4 ftH 10:47p 14.2 ft	7:45a / 3:31p	Minor 3:23a-4:23aMajor 7:51a-9:51aMinor 1:17p-2:17pMajor 8:28p-10:28p
22 Sun	L 4:19a 2.9 ftH 10:44a 17.3 ftL 5:07p -1.3 ftH 11:35p 15.1 ft	7:47a / 3:29p	Minor 4:58a-5:58aMajor 8:43a-10:43aMinor 1:27p-2:27pMajor 9:21p-11:21p
23 Mon	L 5:04a 2.7 ftH 11:26a 18.3 ftL 5:49p -2.7 ft	7:49a / 3:28p	Minor 6:38a-7:38aMajor 9:41a-11:41aMinor 1:44p-2:44pMajor 10:20p-12:20a
24 Tue	H 12:22a 15.8 ftL 5:47a 2.5 ftH 12:09p 19.0 ftL 6:33p -3.5 ft	7:51a / 3:27p	Minor 8:19a-9:19aMajor 10:46a-12:46pMinor 2:12p-3:12p
25 Wed	H 1:08a 16.1 ftL 6:31a 2.5 ftH 12:53p 19.3 ftL 7:17p -3.8 ft	7:53a / 3:25p	Major 11:23p-1:23aMinor 9:47a-10:47aMajor 11:55a-1:55pMinor 3:03p-4:03p
26 Thu	H 1:55a 16.1 ftL 7:16a 2.8 ftH 1:38p 19.1 ftL 8:04p -3.4 ft	7:54a / 3:24p	Major 12:29a-2:29aMinor 10:48a-11:48aMajor 1:05p-3:05pMinor 4:22p-5:22p
27 Fri	H 2:43a 15.8 ftL 8:04a 3.2 ftH 2:26p 18.4 ftL 8:53p -2.6 ft	7:56a / 3:23p	Major 1:33a-3:33aMinor 11:22a-12:22pMajor 2:11p-4:11pMinor 6:00p-7:00p
28 Sat	H 3:35a 15.3 ftL 8:58a 3.8 ftH 3:19p 17.1 ftL 9:46p -1.4 ft	7:58a / 3:22p	Major 2:33a-4:33aMinor 11:42a-12:42pMajor 3:11p-5:11pMinor 7:41p-8:41p
29 Sun	H 4:30a 14.8 ftL 10:00a 4.3 ftH 4:19p 15.6 ftL 10:42p -0.1 ft	8:00a / 3:21p	Major 3:27a-5:27aMinor 11:53a-12:53pMajor 4:04p-6:04pMinor 9:18p-10:18p
30 Mon	H 5:30a 14.4 ftL 11:09a 4.6 ftH 5:28p 14.0 ftL 11:41p 1.3 ft	8:02a / 3:20p	Major 4:17a-6:17aMinor 12:01p-1:01pMajor 4:53p-6:53pMinor 10:48p-11:48p

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 Castle Islands, Duncan Canal

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

Tue, Oct 27, 2:12p: 18.9 ft
Wed, Oct 28, 2:51p: 18.7 ft
Mon, Oct 26, 1:35p: 18.6 ft

Lowest low tides

Tue, Oct 27, 8:28p: -3.4 ft
Mon, Oct 26, 7:48p: -3.2 ft
Wed, Oct 28, 9:12p: -3.0 ft

Low tides below 0.0 ft on 14 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.

November 2026

Highest high tides

Wed, Nov 25, 12:53p: 19.3 ft
Thu, Nov 26, 1:38p: 19.1 ft
Tue, Nov 24, 12:09p: 19.0 ft

Lowest low tides

Wed, Nov 25, 7:17p: -3.8 ft
Tue, Nov 24, 6:33p: -3.5 ft
Thu, Nov 26, 8:04p: -3.4 ft

Low tides below 0.0 ft on 15 days: Nov 6, 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 Castle Islands, Duncan Canal

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

Thu, Oct 1: 3:49a-5:49a4:18p-6:18p
Fri, Oct 2: 4:51a-6:51a5:24p-7:24p
Sat, Oct 3: 5:52a-7:52a6:27p-8:27p
Sat, Oct 17: 5:02a-7:02a5:31p-7:31p
Sun, Oct 18: 5:50a-7:50a6:21p-8:21p

November 2026

Sun, Nov 1: 4:41a-6:41a5:17p-7:17p
Mon, Nov 2: 5:32a-7:32a6:08p-8:08p
Tue, Nov 3: 6:19a-8:19a6:54p-8:54p
Thu, Nov 12: 1:05a-3:05a1:32p-3:32p
Fri, Nov 13: 1:55a-3:55a2:24p-4:24p

Station details

NOAA station

9451321

Prediction type

Harmonic (reference)

Coordinates

56.643, -133.152

Time zone

Alaska Time

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Tide times near Castle Islands, Duncan Canal

Point Lockwood, Woewodski Island

Alaska, 9 mi

Turn Point

Alaska, 13 mi

All Alaska stations Alaska king tides All states

About these predictions

Predictions for Castle Islands, Duncan Canal 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.