Castle Bay, Northwest Arm tide chart
Alaska · NOAA station 9458907 · times in local time (AKDT)
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Tides today, Sunday, October 11
- High 3:33 AM 8.4 ft
- Low 9:21 AM 1.7 ft
- High 3:22 PM 9.8 ft
- Low 10:00 PM -0.7 ft
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Sunrise 8:58 AM · Sunset 7:44 PM · New moon (0%)
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Fishing forecast
Hour by hour at Castle Bay, Northwest ArmBest times
7:00 PM–8:00 PM
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Weather and conditions at Castle Bay, Northwest Arm
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Marine forecast: Sitkinak to Castle Cape out to 15 NM
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Marine radio: weather channels and VHF
To get alerts on a weather alert radio, program county code 002164 (Lake and Peninsula).
VHF marine channels
- Ch 16 Distress, safety and calling
- Ch 9 Boater-to-boater calling
- Ch 22A Coast Guard safety broadcasts
- Ch 13 Bridge-to-bridge (big ships, drawbridges)
- Ch 68, 69, 71, 72, 78A Recreational chat
Weather radio broadcasts are continuous; VHF channels are the US standard. Local harbors and bridges may use others, so check your chart.
Live readings from NOAA and the National Weather Service, loaded when you open this page.
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Tide times this week
| Day | High and low tides | Sunrise / sunset | Moon |
|---|---|---|---|
| Sun Oct 11 | H 3:33 AM 8.4 ftL 9:21 AM 1.7 ftH 3:22 PM 9.8 ftL 10:00 PM -0.7 ft | 8:58 AM / 7:44 PM | New moon (0%) |
| Mon Oct 12 | H 4:15 AM 8.1 ftL 9:52 AM 2.3 ftH 3:53 PM 9.7 ftL 10:37 PM -0.6 ft | 9:00 AM / 7:41 PM | New moon (2%) |
| Tue Oct 13 | H 4:56 AM 7.7 ftL 10:23 AM 2.9 ftH 4:23 PM 9.4 ftL 11:14 PM -0.4 ft | 9:02 AM / 7:38 PM | Waxing crescent (7%) |
| Wed Oct 14 | H 5:37 AM 7.2 ftL 10:53 AM 3.4 ftH 4:55 PM 9.1 ftL 11:53 PM 0.1 ft | 9:04 AM / 7:36 PM | Waxing crescent (13%) |
| Thu Oct 15 | H 6:20 AM 6.7 ftL 11:21 AM 4.0 ftH 5:28 PM 8.6 ft | 9:06 AM / 7:33 PM | Waxing crescent (21%) |
| Fri Oct 16 | L 12:35 AM 0.6 ftH 7:10 AM 6.2 ftL 11:48 AM 4.5 ftH 6:04 PM 8.1 ft | 9:08 AM / 7:31 PM | Waxing crescent (30%) |
| Sat Oct 17 | L 1:26 AM 1.1 ftH 8:15 AM 5.9 ftL 12:23 PM 4.9 ftH 6:49 PM 7.5 ft | 9:10 AM / 7:28 PM | First quarter (40%) |
Best fishing times at Castle Bay, Northwest Arm
The bite score (0 to 100) adds up what anglers watch most: moving water (a tide running harder than usual here scores higher), solunar periods (major periods of about two hours centred on the moon overhead or underfoot, minor periods of about an hour on moonrise and moonset), dawn and dusk light, and how close it is to the new or full moon. Best times are the stretches of the day scoring near that day's top.
| Day | Bite score | Best times | Major periods | Minor periods |
|---|---|---|---|---|
| Sun Oct 11 | 85 · Excellent | 7:00 PM–8:00 PM | 1:56 AM–3:56 AM, 2:18 PM–4:18 PM | 10:28 AM–11:28 AM, 6:56 PM–7:56 PM |
| Mon Oct 12 | 77 · Excellent | 7:00 PM–8:00 PM | 2:42 AM–4:42 AM, 3:05 PM–5:05 PM | 11:53 AM–12:53 PM, 7:07 PM–8:07 PM |
| Tue Oct 13 | 66 · Good | 7:00 PM–8:00 PM | 3:29 AM–5:29 AM, 3:54 PM–5:54 PM | 1:15 PM–2:15 PM, 7:25 PM–8:25 PM |
| Wed Oct 14 | 55 · Good | 8:00 PM–9:00 PM | 4:19 AM–6:19 AM, 4:44 PM–6:44 PM | 2:30 PM–3:30 PM, 7:54 PM–8:54 PM |
| Thu Oct 15 | 44 · Fair | 6:00 PM–8:00 PM | 5:09 AM–7:09 AM, 5:35 PM–7:35 PM | 3:31 PM–4:31 PM, 8:39 PM–9:39 PM |
| Fri Oct 16 | 37 · Fair | 7:00 PM–8:00 PM | 6:00 AM–8:00 AM, 6:25 PM–8:25 PM | 4:13 PM–5:13 PM, 9:42 PM–10:42 PM |
| Sat Oct 17 | 33 · Slow | 8:00 PM–9:00 PM | 6:50 AM–8:50 AM, 7:15 PM–9:15 PM | 4:40 PM–5:40 PM, 10:57 PM–11:57 PM |
A planning aid, not a guarantee. Wind, water clarity, bait and pressure changes matter too; the forecast above adds live wind and pressure when you open the page.
Best daylight low tides in the next two weeks
The lowest water that falls between sunrise and sunset, for tide pooling and beachcombing.
- 1.7 ft at 9:21 AM on Sunday, October 11
- 2.2 ft at 7:03 PM on Thursday, October 22
- 2.3 ft at 9:52 AM on Monday, October 12
- 2.9 ft at 10:23 AM on Tuesday, October 13
- 3.4 ft at 6:19 PM on Wednesday, October 21
- 3.4 ft at 10:53 AM on Wednesday, October 14
Tide table: October 11 to November 10, 2026
Full 2026 tide table Full 2027 tide table
| Day | High and low tides | Sunrise / sunset |
|---|---|---|
| Sun Oct 11 | H 3:33 AM 8.4 ftL 9:21 AM 1.7 ftH 3:22 PM 9.8 ftL 10:00 PM -0.7 ft | 8:58 AM / 7:44 PM |
| Mon Oct 12 | H 4:15 AM 8.1 ftL 9:52 AM 2.3 ftH 3:53 PM 9.7 ftL 10:37 PM -0.6 ft | 9:00 AM / 7:41 PM |
| Tue Oct 13 | H 4:56 AM 7.7 ftL 10:23 AM 2.9 ftH 4:23 PM 9.4 ftL 11:14 PM -0.4 ft | 9:02 AM / 7:38 PM |
| Wed Oct 14 | H 5:37 AM 7.2 ftL 10:53 AM 3.4 ftH 4:55 PM 9.1 ftL 11:53 PM 0.1 ft | 9:04 AM / 7:36 PM |
| Thu Oct 15 | H 6:20 AM 6.7 ftL 11:21 AM 4.0 ftH 5:28 PM 8.6 ft | 9:06 AM / 7:33 PM |
| Fri Oct 16 | L 12:35 AM 0.6 ftH 7:10 AM 6.2 ftL 11:48 AM 4.5 ftH 6:04 PM 8.1 ft | 9:08 AM / 7:31 PM |
| Sat Oct 17 | L 1:26 AM 1.1 ftH 8:15 AM 5.9 ftL 12:23 PM 4.9 ftH 6:49 PM 7.5 ft | 9:10 AM / 7:28 PM |
| Sun Oct 18 | L 2:32 AM 1.6 ftH 9:37 AM 5.8 ftL 2:02 PM 5.2 ftH 8:00 PM 7.0 ft | 9:12 AM / 7:26 PM |
| Mon Oct 19 | L 3:44 AM 1.8 ftH 10:47 AM 6.1 ftL 4:05 PM 5.0 ftH 9:33 PM 6.7 ft | 9:14 AM / 7:23 PM |
| Tue Oct 20 | L 4:47 AM 1.8 ftH 11:37 AM 6.7 ftL 5:23 PM 4.3 ftH 10:52 PM 6.8 ft | 9:16 AM / 7:21 PM |
| Wed Oct 21 | L 5:40 AM 1.7 ftH 12:14 PM 7.3 ftL 6:19 PM 3.4 ftH 11:58 PM 7.2 ft | 9:18 AM / 7:19 PM |
| Thu Oct 22 | L 6:25 AM 1.6 ftH 12:46 PM 8.0 ftL 7:03 PM 2.2 ft | 9:21 AM / 7:16 PM |
| Fri Oct 23 | H 12:54 AM 7.6 ftL 7:04 AM 1.6 ftH 1:16 PM 8.7 ftL 7:42 PM 1.1 ft | 9:23 AM / 7:14 PM |
| Sat Oct 24 | H 1:43 AM 8.0 ftL 7:40 AM 1.7 ftH 1:46 PM 9.4 ftL 8:19 PM 0.0 ft | 9:25 AM / 7:11 PM |
| Sun Oct 25 | H 2:29 AM 8.3 ftL 8:14 AM 1.9 ftH 2:18 PM 10.0 ftL 8:57 PM -0.9 ft | 9:27 AM / 7:09 PM |
| Mon Oct 26 | H 3:14 AM 8.4 ftL 8:48 AM 2.3 ftH 2:51 PM 10.5 ftL 9:37 PM -1.6 ft | 9:29 AM / 7:07 PM |
| Tue Oct 27 | H 4:01 AM 8.3 ftL 9:24 AM 2.6 ftH 3:27 PM 10.7 ftL 10:21 PM -1.9 ft | 9:31 AM / 7:04 PM |
| Wed Oct 28 | H 4:49 AM 8.1 ftL 10:02 AM 3.1 ftH 4:06 PM 10.7 ftL 11:08 PM -1.8 ft | 9:33 AM / 7:02 PM |
| Thu Oct 29 | H 5:40 AM 7.7 ftL 10:43 AM 3.6 ftH 4:50 PM 10.4 ftL 11:59 PM -1.4 ft | 9:36 AM / 7:00 PM |
| Fri Oct 30 | H 6:35 AM 7.3 ftL 11:31 AM 4.0 ftH 5:39 PM 9.8 ft | 9:38 AM / 6:58 PM |
| Sat Oct 31 | L 12:55 AM -0.8 ftH 7:39 AM 6.9 ftL 12:32 PM 4.5 ftH 6:36 PM 9.0 ft | 9:40 AM / 6:55 PM |
| Sun Nov 1 | L 1:00 AM -0.1 ftH 7:54 AM 6.9 ftL 1:01 PM 4.7 ftH 6:50 PM 8.2 ft | 8:42 AM / 5:53 PM |
| Mon Nov 2 | L 2:12 AM 0.6 ftH 9:05 AM 7.2 ftL 2:45 PM 4.3 ftH 8:21 PM 7.5 ft | 8:44 AM / 5:51 PM |
| Tue Nov 3 | L 3:20 AM 1.0 ftH 10:04 AM 7.7 ftL 4:11 PM 3.4 ftH 9:47 PM 7.3 ft | 8:46 AM / 5:49 PM |
| Wed Nov 4 | L 4:20 AM 1.4 ftH 10:52 AM 8.3 ftL 5:19 PM 2.3 ftH 11:04 PM 7.3 ft | 8:49 AM / 5:47 PM |
| Thu Nov 5 | L 5:14 AM 1.8 ftH 11:33 AM 8.9 ftL 6:11 PM 1.2 ft | 8:51 AM / 5:45 PM |
| Fri Nov 6 | H 12:08 AM 7.5 ftL 6:00 AM 2.1 ftH 12:09 PM 9.4 ftL 6:53 PM 0.3 ft | 8:53 AM / 5:43 PM |
| Sat Nov 7 | H 12:59 AM 7.7 ftL 6:40 AM 2.5 ftH 12:43 PM 9.8 ftL 7:31 PM -0.4 ft | 8:55 AM / 5:41 PM |
| Sun Nov 8 | H 1:44 AM 7.7 ftL 7:15 AM 2.8 ftH 1:15 PM 10.0 ftL 8:06 PM -0.7 ft | 8:57 AM / 5:39 PM |
| Mon Nov 9 | H 2:25 AM 7.7 ftL 7:49 AM 3.2 ftH 1:46 PM 10.0 ftL 8:41 PM -0.9 ft | 8:59 AM / 5:37 PM |
| Tue Nov 10 | H 3:05 AM 7.7 ftL 8:21 AM 3.5 ftH 2:17 PM 9.8 ftL 9:16 PM -0.8 ft | 9:01 AM / 5:35 PM |
Heights are in feet above mean lower low water (MLLW), the zero line on most US nautical charts. A minus height means the water drops below that line.
Fish in the waters around Castle Bay, Northwest Arm
38 kinds of fish, sharks and rays have been recorded within 15 km (about 9 miles) of this spot, most often Capelin, Flathead Sole, Rock Greenling. The bar shows how many records each has.
- Capelin Mallotus villosusSalt water · 11 records
- Flathead Sole Hippoglossoides elassodonSalt water · 9 records
- Rock Greenling Hexagrammos lagocephalusSalt water · 5 records
- Gray Starsnout Bathyagonus alascanusSalt water · 5 records
- Spinyhead Sculpin Dasycottus setigerSalt water · 4 records
- Stout Eelblenny Anisarchus mediusSalt water · 4 records
- Shortfin Eelpout Lycodes brevipesSalt water · 4 records
- Yellow Irish Lord Hemilepidotus jordaniSalt water · 3 records
- Alligatorfish Aspidophoroides monopterygiusSalt water · 3 records
- Spatulate Sculpin Icelus spatulaSalt water · 3 records
- Tadpole Sculpin Psychrolutes paradoxusSalt water · 2 records
- Pacific Ocean Perch Sebastes alutusSalt water · 2 records
- Masked Greenling Hexagrammos octogrammusSalt water · 2 records
- Searcher Bathymaster signatusSalt water · 2 records
- Daubed Shanny Leptoclinus maculatusSalt water · 2 records
- Pacific Halibut Hippoglossus stenolepisSalt water · 2 records
- Walleye Pollock Gadus chalcogrammusSalt water · 2 records
- Thorny Sculpin Icelus spinigerSalt water · 2 records
- Longnose Poacher Sarritor leptorhynchusSalt water · 2 records
- Sockeye Salmon Oncorhynchus nerkaSalt water · 2 records
- Crescent Gunnel Pholis laetaSalt water · 2 records
- Yellowfin Sole Limanda asperaSalt water · 2 records
- Puget Sound Sculpin Ruscarius meanyiSalt water · 1 record
- Scalyhead Sculpin Artedius harringtoniSalt water · 1 record
- Northern Sculpin Icelinus borealisSalt water · 1 record
- Bigmouth Sculpin Hemitripterus boliniSalt water · 1 record
- Northern Rockfish Sebastes polyspinisSalt water · 1 record
- Smooth Lumpsucker Aptocyclus ventricosusSalt water · 1 record
- Spinycheek Starsnout Bathyagonus infraspinatusSalt water · 1 record
- Fourhorn Poacher Hypsagonus quadricornisSalt water · 1 record
- Alaskan Ronquil Bathymaster caeruleofasciatusSalt water · 1 record
- Black Prickleback Xiphister atropurpureusSalt water · 1 record
- High Cockscomb Anoplarchus purpurescensSalt water · 1 record
- Sand Sole Psettichthys melanostictusSalt water · 1 record
- Pacific Cod Gadus macrocephalusSalt water · 1 record
- Three-spined Stickleback Gasterosteus aculeatusSalt water · 1 record
- Spotted Snailfish Liparis callyodonSalt water · 1 record
- Slipskin Snailfish Liparis fucensisSalt water · 1 record
Fresh water nearby · 2 species
Rivers, creeks and ponds within 15 km, not the tidal water itself.
- Pygmy Whitefish Prosopium coulteriiFresh water · 1 record
- Alaska Blackfish Dallia pectoralisFresh water · 1 record
Records from GBIF datasets released under CC0 or CC BY 4.0 (museum collections, surveys and community sightings). It shows what has been found here, not a complete list. Check your state rules before keeping fish.
About the tides at Castle Bay, Northwest Arm
Castle Bay, Northwest Arm gets two high tides and two low tides most days, but one high is clearly higher than the other (and one low clearly lower), which is called a mixed tide. Over the next month the water typically rises or falls about 6.4 ft between a high and the next low.
The biggest swings in this window come around Tuesday, October 27, when the day's range reaches 12.6 ft, and again around Monday, November 9 (10.8 ft). Here the biggest ranges depend on the moon's phase and on how far north or south of the equator it is, so they don't always line up with the new and full moon. The calmest day is Monday, October 19, with only 4.9 ft between the day's highest and lowest water.
The lowest tide of the month is -1.9 ft at 10:21 PM on Tuesday, October 27. There are 15 minus tides (lows below the chart's zero line) in this window: the best times for tide pools, clamming and walking the flats.
The highest predicted tide is 10.7 ft at 3:27 PM on Tuesday, October 27. Onshore wind or a storm can push the real water level above that.
This is a reference (harmonic) station: NOAA predicts its tides directly from years of measured water levels here, which makes it among the most reliable predictions on the coast.
Station details
- NOAA station ID: 9458907
- Type: reference (harmonic)
- Location: 56.2317, -158.3470
Nearby tide stations
- Chignik, Anchorage Bay 5 mi
- Chankliut Island 11 mi
- Hump Island, Kuiukta Bay 13 mi
- Nakchamik Island 22 mi
- Unavikshak Island 29 mi
- Kujulik Bay (North Shore) 30 mi