Zachary Bay, Unga Island tide chart
Alaska · near Sand Point (5 mi) · NOAA station 9459465 · times in local time (AKDT)
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Tides today, Sunday, October 11
- High 3:40 AM 7.1 ft
- Low 9:19 AM 1.8 ft
- High 3:20 PM 8.3 ft
- Low 9:59 PM -0.5 ft
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Sunrise 9:05 AM · Sunset 7:54 PM · New moon (0%)
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Weather and conditions at Zachary Bay, Unga Island
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Marine forecast: Castle Cape to Cape Tolstoi out to 15 NM
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- Water temperature —
Marine radio: weather channels and VHF
NOAA Weather Radio
- 162.550 MHz WX1 WNG714, Sand Point, AK (6 mi)
To get alerts on a weather alert radio, program county code 002013 (Aleutians East).
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 3:40 AM 7.1 ftL 9:19 AM 1.8 ftH 3:20 PM 8.3 ftL 9:59 PM -0.5 ft | 9:05 AM / 7:54 PM | New moon (0%) |
| Mon Oct 12 | H 4:21 AM 6.8 ftL 9:48 AM 2.3 ftH 3:45 PM 8.2 ftL 10:34 PM -0.5 ft | 9:07 AM / 7:51 PM | New moon (2%) |
| Tue Oct 13 | H 5:02 AM 6.5 ftL 10:14 AM 2.8 ftH 4:10 PM 8.0 ftL 11:10 PM -0.2 ft | 9:09 AM / 7:49 PM | Waxing crescent (7%) |
| Wed Oct 14 | H 5:44 AM 6.0 ftL 10:38 AM 3.3 ftH 4:35 PM 7.7 ftL 11:47 PM 0.2 ft | 9:11 AM / 7:47 PM | Waxing crescent (13%) |
| Thu Oct 15 | H 6:31 AM 5.6 ftL 11:01 AM 3.7 ftH 5:04 PM 7.3 ft | 9:13 AM / 7:44 PM | Waxing crescent (21%) |
| Fri Oct 16 | L 12:30 AM 0.6 ftH 7:30 AM 5.2 ftL 11:28 AM 4.1 ftH 5:38 PM 6.9 ft | 9:15 AM / 7:42 PM | Waxing crescent (30%) |
| Sat Oct 17 | L 1:24 AM 1.1 ftH 8:52 AM 5.0 ftL 12:05 PM 4.5 ftH 6:22 PM 6.4 ft | 9:17 AM / 7:39 PM | First quarter (40%) |
Tidal currents near Zachary Bay, Unga Island
From NOAA's current predictions for Popof Strait, 3.9 miles away. Slack is when the current turns and the water is calmest; flood runs in with the rising tide and ebb runs out with the falling tide. Times are the peak of each run, in knots. The flood runs toward the N (357°) and the ebb toward the SSW (199°). The strongest current this week is 0.6 knots.
| Day | Slack water and peak currents |
|---|---|
| Sun Oct 11 | Slack 2:17 AMEbb 5:10 AM 0.6 knSlack 8:24 AMFlood 11:12 AM 0.3 knSlack 3:22 PMEbb 6:38 PM 0.5 knSlack 9:06 PMFlood 11:29 PM 0.2 kn |
| Mon Oct 12 | Slack 3:07 AMEbb 6:03 AM 0.5 knSlack 9:14 AMFlood 12:06 PM 0.3 knSlack 4:18 PMEbb 7:49 PM 0.5 knSlack 10:03 PM |
| Tue Oct 13 | Flood 12:22 AM 0.2 knSlack 3:57 AMEbb 6:54 AM 0.5 knSlack 10:04 AMFlood 12:56 PM 0.3 knSlack 5:11 PMEbb 8:48 PM 0.5 knSlack 10:57 PM |
| Wed Oct 14 | Flood 1:14 AM 0.2 knSlack 4:46 AMEbb 7:43 AM 0.5 knSlack 10:52 AMFlood 1:44 PM 0.3 knSlack 6:00 PMEbb 9:41 PM 0.5 knSlack 11:50 PM |
| Thu Oct 15 | Flood 2:04 AM 0.1 knSlack 5:35 AMEbb 8:28 AM 0.5 knSlack 11:40 AMFlood 2:29 PM 0.3 knSlack 6:45 PMEbb 10:30 PM 0.5 kn |
| Fri Oct 16 | Slack 12:41 AMFlood 2:52 AM 0.1 knSlack 6:23 AMEbb 9:12 AM 0.4 knSlack 12:27 PMFlood 3:14 PM 0.3 knSlack 7:29 PMEbb 11:15 PM 0.5 kn |
| Sat Oct 17 | Slack 1:29 AMFlood 3:39 AM 0.1 knSlack 7:11 AMEbb 9:56 AM 0.4 knSlack 1:14 PMFlood 3:59 PM 0.3 knSlack 8:10 PMEbb 11:49 PM 0.5 kn |
Current predictions can differ a lot over short distances: check the station location on NOAA before planning a passage.
Best fishing times at Zachary Bay, Unga Island
Solunar periods for this spot: major periods (about two hours) are centred on the moon passing overhead or underfoot, and minor periods (about an hour) on moonrise and moonset. Days near the new and full moon rate higher, and so does a period that lines up with sunrise, sunset or a turn of the tide.
| Day | Rating | Major periods | Minor periods |
|---|---|---|---|
| Sun Oct 11 | Excellent | 2:05 AM–4:05 AM, 2:28 PM–4:28 PM | 10:34 AM–11:34 AM, 7:09 PM–8:09 PM |
| Mon Oct 12 | Excellent | 2:51 AM–4:51 AM, 3:15 PM–5:15 PM | 11:57 AM–12:57 PM, 7:23 PM–8:23 PM |
| Tue Oct 13 | Excellent | 3:39 AM–5:39 AM, 4:03 PM–6:03 PM | 1:17 PM–2:17 PM, 7:42 PM–8:42 PM |
| Wed Oct 14 | Very good | 4:28 AM–6:28 AM, 4:53 PM–6:53 PM | 2:30 PM–3:30 PM, 8:13 PM–9:13 PM |
| Thu Oct 15 | Very good | 5:19 AM–7:19 AM, 5:44 PM–7:44 PM | 3:30 PM–4:30 PM, 8:58 PM–9:58 PM |
| Fri Oct 16 | Good | 6:10 AM–8:10 AM, 6:35 PM–8:35 PM | 4:13 PM–5:13 PM, 10:00 PM–11:00 PM |
| Sat Oct 17 | Good | 7:00 AM–9:00 AM, 7:24 PM–9:24 PM | 4:42 PM–5:42 PM, 11:14 PM–12:14 AM |
Solunar times are a rule of thumb many anglers use, not a guarantee. Moving water around a tide change usually matters as much.
Best daylight low tides in the next two weeks
The lowest water that falls between sunrise and sunset, for tide pooling and beachcombing.
- 1.8 ft at 9:19 AM on Sunday, October 11
- 2.0 ft at 7:06 PM on Thursday, October 22
- 2.3 ft at 9:48 AM on Monday, October 12
- 2.8 ft at 10:14 AM on Tuesday, October 13
- 2.9 ft at 6:27 PM on Wednesday, October 21
- 3.3 ft at 10:38 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 3:40 AM 7.1 ftL 9:19 AM 1.8 ftH 3:20 PM 8.3 ftL 9:59 PM -0.5 ft | 9:05 AM / 7:54 PM |
| Mon Oct 12 | H 4:21 AM 6.8 ftL 9:48 AM 2.3 ftH 3:45 PM 8.2 ftL 10:34 PM -0.5 ft | 9:07 AM / 7:51 PM |
| Tue Oct 13 | H 5:02 AM 6.5 ftL 10:14 AM 2.8 ftH 4:10 PM 8.0 ftL 11:10 PM -0.2 ft | 9:09 AM / 7:49 PM |
| Wed Oct 14 | H 5:44 AM 6.0 ftL 10:38 AM 3.3 ftH 4:35 PM 7.7 ftL 11:47 PM 0.2 ft | 9:11 AM / 7:47 PM |
| Thu Oct 15 | H 6:31 AM 5.6 ftL 11:01 AM 3.7 ftH 5:04 PM 7.3 ft | 9:13 AM / 7:44 PM |
| Fri Oct 16 | L 12:30 AM 0.6 ftH 7:30 AM 5.2 ftL 11:28 AM 4.1 ftH 5:38 PM 6.9 ft | 9:15 AM / 7:42 PM |
| Sat Oct 17 | L 1:24 AM 1.1 ftH 8:52 AM 5.0 ftL 12:05 PM 4.5 ftH 6:22 PM 6.4 ft | 9:17 AM / 7:39 PM |
| Sun Oct 18 | L 2:35 AM 1.5 ftH 10:19 AM 5.1 ftL 1:30 PM 4.8 ftH 7:29 PM 5.9 ft | 9:19 AM / 7:37 PM |
| Mon Oct 19 | L 3:53 AM 1.6 ftH 11:20 AM 5.4 ftL 4:27 PM 4.5 ftH 9:22 PM 5.7 ft | 9:21 AM / 7:34 PM |
| Tue Oct 20 | L 4:57 AM 1.6 ftH 11:59 AM 5.9 ftL 5:39 PM 3.8 ftH 11:03 PM 5.8 ft | 9:23 AM / 7:32 PM |
| Wed Oct 21 | L 5:47 AM 1.5 ftH 12:29 PM 6.4 ftL 6:27 PM 2.9 ft | 9:25 AM / 7:30 PM |
| Thu Oct 22 | H 12:10 AM 6.1 ftL 6:28 AM 1.5 ftH 12:55 PM 6.9 ftL 7:06 PM 2.0 ft | 9:27 AM / 7:27 PM |
| Fri Oct 23 | H 1:03 AM 6.5 ftL 7:04 AM 1.6 ftH 1:19 PM 7.5 ftL 7:42 PM 1.0 ft | 9:29 AM / 7:25 PM |
| Sat Oct 24 | H 1:50 AM 6.8 ftL 7:37 AM 1.7 ftH 1:45 PM 8.0 ftL 8:18 PM 0.0 ft | 9:32 AM / 7:23 PM |
| Sun Oct 25 | H 2:36 AM 7.0 ftL 8:10 AM 2.0 ftH 2:12 PM 8.5 ftL 8:56 PM -0.8 ft | 9:34 AM / 7:20 PM |
| Mon Oct 26 | H 3:20 AM 7.1 ftL 8:43 AM 2.3 ftH 2:41 PM 8.9 ftL 9:35 PM -1.3 ft | 9:36 AM / 7:18 PM |
| Tue Oct 27 | H 4:06 AM 7.0 ftL 9:17 AM 2.7 ftH 3:15 PM 9.1 ftL 10:18 PM -1.5 ft | 9:38 AM / 7:16 PM |
| Wed Oct 28 | H 4:55 AM 6.8 ftL 9:52 AM 3.1 ftH 3:52 PM 9.1 ftL 11:04 PM -1.4 ft | 9:40 AM / 7:14 PM |
| Thu Oct 29 | H 5:48 AM 6.4 ftL 10:31 AM 3.5 ftH 4:33 PM 8.9 ftL 11:55 PM -1.1 ft | 9:42 AM / 7:12 PM |
| Fri Oct 30 | H 6:49 AM 6.1 ftL 11:16 AM 3.9 ftH 5:20 PM 8.4 ft | 9:44 AM / 7:09 PM |
| Sat Oct 31 | L 12:54 AM -0.5 ftH 8:01 AM 5.8 ftL 12:18 PM 4.3 ftH 6:17 PM 7.6 ft | 9:46 AM / 7:07 PM |
| Sun Nov 1 | L 1:02 AM 0.1 ftH 8:17 AM 5.9 ftL 1:01 PM 4.4 ftH 6:36 PM 6.8 ft | 8:48 AM / 6:05 PM |
| Mon Nov 2 | L 2:15 AM 0.6 ftH 9:25 AM 6.2 ftL 2:57 PM 4.0 ftH 8:24 PM 6.3 ft | 8:50 AM / 6:03 PM |
| Tue Nov 3 | L 3:25 AM 1.0 ftH 10:18 AM 6.8 ftL 4:21 PM 3.1 ftH 10:02 PM 6.2 ft | 8:52 AM / 6:01 PM |
| Wed Nov 4 | L 4:25 AM 1.4 ftH 11:02 AM 7.3 ftL 5:22 PM 2.0 ftH 11:16 PM 6.3 ft | 8:54 AM / 5:59 PM |
| Thu Nov 5 | L 5:16 AM 1.7 ftH 11:39 AM 7.8 ftL 6:10 PM 1.1 ft | 8:56 AM / 5:57 PM |
| Fri Nov 6 | H 12:16 AM 6.5 ftL 5:59 AM 2.0 ftH 12:13 PM 8.1 ftL 6:52 PM 0.3 ft | 8:59 AM / 5:55 PM |
| Sat Nov 7 | H 1:07 AM 6.6 ftL 6:38 AM 2.4 ftH 12:44 PM 8.4 ftL 7:30 PM -0.3 ft | 9:01 AM / 5:53 PM |
| Sun Nov 8 | H 1:53 AM 6.7 ftL 7:14 AM 2.8 ftH 1:13 PM 8.5 ftL 8:06 PM -0.6 ft | 9:03 AM / 5:51 PM |
| Mon Nov 9 | H 2:35 AM 6.7 ftL 7:46 AM 3.1 ftH 1:41 PM 8.5 ftL 8:40 PM -0.7 ft | 9:05 AM / 5:49 PM |
| Tue Nov 10 | H 3:15 AM 6.6 ftL 8:17 AM 3.4 ftH 2:08 PM 8.4 ftL 9:15 PM -0.6 ft | 9:07 AM / 5:47 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.
Around Zachary Bay, Unga Island
Beaches
- Sandy Beach South 2.0 mi
- Sandy Beach 2.3 mi
- Humboldt Harbor 4.3 mi
Marinas
- New Sand Point Boat Harbor 4.5 mi
- Robert E. Galovin Boat Harbor 4.7 mi
Fishing piers and docks
- Peter Pan Dock 3.9 mi
- Quarry Dock 4.3 mi
- Ferry Dock 4.4 mi
- City Dock 4.4 mi
Distances from the tide station. Places from © OpenStreetMap contributors; links open in Google Maps.
About the tides at Zachary Bay, Unga Island
Zachary Bay, Unga Island 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 5.3 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 10.6 ft, and again around Monday, November 9 (9.2 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 4.0 ft between the day's highest and lowest water.
The lowest tide of the month is -1.5 ft at 10:18 PM on Tuesday, October 27. There are 13 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 9.1 ft at 3:52 PM on Wednesday, October 28. 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: 9459465
- Type: reference (harmonic)
- Location: 55.3350, -160.6170
Nearby tide stations
- Sand Point, Popof Island 4 mi
- Pirate Cove, Popof Island 10 mi
- Beaver Bay 13 mi
- Albatross Anchorage, Balboa Bay 18 mi
- Sanborn Harbor, Nagai Island 27 mi
- Seal Cape, Coal Bay 28 mi