Offshore St Matthew Island (Gnss Buoy) tide chart
Alaska · NOAA station 9466229 · times in local time (AKDT)
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Tides today, Sunday, October 11
- Low 4:33 AM 0.0 ft
- High 11:34 AM 3.1 ft
- Low 5:41 PM 1.4 ft
- High 10:27 PM 2.1 ft
Were today's predicted times right where you were?
Sunrise 10:01 AM · Sunset 8:33 PM · New moon (0%)
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Weather and conditions at Offshore St Matthew Island (Gnss Buoy)
Loading the National Weather Service forecast… Open it on weather.gov.
Marine radio: weather channels and VHF
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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Recent reports
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Reports are from visitors and may be wrong. Inappropriate ones are removed.
Tide times this week
| Day | High and low tides | Sunrise / sunset | Moon |
|---|---|---|---|
| Sun Oct 11 | L 4:33 AM 0.0 ftH 11:34 AM 3.1 ftL 5:41 PM 1.4 ftH 10:27 PM 2.1 ft | 10:01 AM / 8:33 PM | New moon (0%) |
| Mon Oct 12 | L 5:05 AM -0.1 ftH 12:25 PM 3.2 ftL 6:38 PM 1.5 ftH 10:41 PM 2.0 ft | 10:04 AM / 8:30 PM | New moon (2%) |
| Tue Oct 13 | L 5:37 AM -0.1 ftH 1:13 PM 3.3 ftL 7:35 PM 1.6 ftH 10:46 PM 1.9 ft | 10:06 AM / 8:27 PM | Waxing crescent (7%) |
| Wed Oct 14 | L 6:10 AM 0.0 ftH 1:57 PM 3.2 ftL 8:28 PM 1.7 ftH 10:56 PM 1.9 ft | 10:09 AM / 8:24 PM | Waxing crescent (13%) |
| Thu Oct 15 | L 6:44 AM 0.0 ftH 2:41 PM 3.2 ft | 10:11 AM / 8:21 PM | Waxing crescent (21%) |
| Fri Oct 16 | L 7:20 AM 0.1 ftH 3:27 PM 3.0 ft | 10:14 AM / 8:18 PM | Waxing crescent (30%) |
| Sat Oct 17 | L 7:56 AM 0.2 ftH 4:19 PM 2.9 ft | 10:16 AM / 8:15 PM | First quarter (40%) |
Tidal currents near Offshore St Matthew Island (Gnss Buoy)
From NOAA's current predictions for St. Mathew I., southwest coast, 8.4 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 WNW (292°) and the ebb toward the ESE (119°). The strongest current this week is 1.4 knots.
| Day | Slack water and peak currents |
|---|---|
| Sun Oct 11 | Slack 1:04 AMFlood 3:59 AM 1.1 knSlack 7:14 AMEbb 10:28 AM 1.1 knSlack 1:20 PMFlood 4:37 PM 1.4 knSlack 8:19 PMEbb 11:56 PM 1.0 kn |
| Mon Oct 12 | Slack 2:02 AMFlood 4:54 AM 1.0 knSlack 8:04 AMEbb 11:21 AM 1.1 knSlack 2:10 PMFlood 5:31 PM 1.4 knSlack 9:15 PM |
| Tue Oct 13 | Ebb 1:07 AM 1.0 knSlack 2:59 AMFlood 5:47 AM 0.9 knSlack 8:54 AMEbb 12:12 PM 1.0 knSlack 3:00 PMFlood 6:21 PM 1.4 knSlack 10:08 PM |
| Wed Oct 14 | Ebb 2:06 AM 1.0 knSlack 3:53 AMFlood 6:39 AM 0.8 knSlack 9:43 AMEbb 1:01 PM 1.0 knSlack 3:48 PMFlood 7:09 PM 1.4 knSlack 10:57 PM |
| Thu Oct 15 | Ebb 2:59 AM 1.0 knSlack 4:46 AMFlood 7:29 AM 0.8 knSlack 10:32 AMEbb 1:46 PM 0.9 knSlack 4:36 PMFlood 7:54 PM 1.4 knSlack 11:42 PM |
| Fri Oct 16 | Ebb 3:48 AM 1.0 knSlack 5:37 AMFlood 8:17 AM 0.7 knSlack 11:20 AMEbb 2:30 PM 0.9 knSlack 5:23 PMFlood 8:39 PM 1.4 kn |
| Sat Oct 17 | Slack 12:26 AMEbb 4:33 AM 1.0 knSlack 6:25 AMFlood 9:04 AM 0.7 knSlack 12:08 PMEbb 3:14 PM 0.8 knSlack 6:10 PMFlood 9:24 PM 1.3 kn |
Current predictions can differ a lot over short distances: check the station location on NOAA before planning a passage.
Best fishing times at Offshore St Matthew Island (Gnss Buoy)
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 | 2:54 AM–4:54 AM, 3:17 PM–5:17 PM | 11:51 AM–12:51 PM, 7:28 PM–8:28 PM |
| Mon Oct 12 | Excellent | 3:40 AM–5:40 AM, 4:04 PM–6:04 PM | 1:27 PM–2:27 PM, 7:29 PM–8:29 PM |
| Tue Oct 13 | Excellent | 4:28 AM–6:28 AM, 4:52 PM–6:52 PM | 3:03 PM–4:03 PM, 7:34 PM–8:34 PM |
| Wed Oct 14 | Very good | 5:17 AM–7:17 AM, 5:42 PM–7:42 PM | 4:32 PM–5:32 PM, 7:49 PM–8:49 PM |
| Thu Oct 15 | Very good | 6:08 AM–8:08 AM, 6:33 PM–8:33 PM | 5:39 PM–6:39 PM, 8:28 PM–9:28 PM |
| Fri Oct 16 | Good | 6:59 AM–8:59 AM, 7:24 PM–9:24 PM | 6:11 PM–7:11 PM, 9:41 PM–10:41 PM |
| Sat Oct 17 | Good | 7:49 AM–9:49 AM, 8:13 PM–10:13 PM | 6:23 PM–7:23 PM, 11:12 PM–12:12 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.
- 0.8 ft at 10:37 AM on Tuesday, October 20
- 1.0 ft at 11:53 AM on Wednesday, October 21
- 1.2 ft at 1:00 PM on Thursday, October 22
- 1.4 ft at 2:17 PM on Friday, October 23
- 1.4 ft at 5:41 PM on Sunday, October 11
- 1.5 ft at 3:29 PM on Saturday, October 24
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 | L 4:33 AM 0.0 ftH 11:34 AM 3.1 ftL 5:41 PM 1.4 ftH 10:27 PM 2.1 ft | 10:01 AM / 8:33 PM |
| Mon Oct 12 | L 5:05 AM -0.1 ftH 12:25 PM 3.2 ftL 6:38 PM 1.5 ftH 10:41 PM 2.0 ft | 10:04 AM / 8:30 PM |
| Tue Oct 13 | L 5:37 AM -0.1 ftH 1:13 PM 3.3 ftL 7:35 PM 1.6 ftH 10:46 PM 1.9 ft | 10:06 AM / 8:27 PM |
| Wed Oct 14 | L 6:10 AM 0.0 ftH 1:57 PM 3.2 ftL 8:28 PM 1.7 ftH 10:56 PM 1.9 ft | 10:09 AM / 8:24 PM |
| Thu Oct 15 | L 6:44 AM 0.0 ftH 2:41 PM 3.2 ft | 10:11 AM / 8:21 PM |
| Fri Oct 16 | L 7:20 AM 0.1 ftH 3:27 PM 3.0 ft | 10:14 AM / 8:18 PM |
| Sat Oct 17 | L 7:56 AM 0.2 ftH 4:19 PM 2.9 ft | 10:16 AM / 8:15 PM |
| Sun Oct 18 | L 8:35 AM 0.4 ftH 5:14 PM 2.8 ft | 10:19 AM / 8:12 PM |
| Mon Oct 19 | L 9:23 AM 0.6 ftH 6:00 PM 2.8 ft | 10:21 AM / 8:10 PM |
| Tue Oct 20 | L 10:37 AM 0.8 ftH 6:38 PM 2.7 ft | 10:24 AM / 8:07 PM |
| Wed Oct 21 | L 1:19 AM 1.4 ftH 6:05 AM 1.6 ftL 11:53 AM 1.0 ftH 7:08 PM 2.6 ft | 10:26 AM / 8:04 PM |
| Thu Oct 22 | L 1:45 AM 1.2 ftH 7:31 AM 1.9 ftL 1:00 PM 1.2 ftH 7:32 PM 2.4 ft | 10:29 AM / 8:01 PM |
| Fri Oct 23 | L 2:12 AM 0.9 ftH 8:39 AM 2.2 ftL 2:17 PM 1.4 ftH 7:46 PM 2.3 ft | 10:31 AM / 7:58 PM |
| Sat Oct 24 | L 2:39 AM 0.5 ftH 9:34 AM 2.6 ftL 3:29 PM 1.5 ftH 7:59 PM 2.2 ft | 10:34 AM / 7:55 PM |
| Sun Oct 25 | L 3:08 AM 0.1 ftH 10:23 AM 3.0 ftL 4:26 PM 1.6 ftH 8:21 PM 2.2 ft | 10:37 AM / 7:52 PM |
| Mon Oct 26 | L 3:40 AM -0.2 ftH 11:10 AM 3.3 ftL 5:19 PM 1.7 ftH 8:51 PM 2.2 ft | 10:39 AM / 7:50 PM |
| Tue Oct 27 | L 4:15 AM -0.5 ftH 12:01 PM 3.6 ftL 6:14 PM 1.8 ftH 9:27 PM 2.2 ft | 10:42 AM / 7:47 PM |
| Wed Oct 28 | L 4:53 AM -0.7 ftH 12:53 PM 3.7 ftL 7:12 PM 1.9 ftH 10:06 PM 2.2 ft | 10:44 AM / 7:44 PM |
| Thu Oct 29 | L 5:38 AM -0.8 ftH 1:44 PM 3.7 ftL 8:07 PM 1.9 ftH 10:49 PM 2.2 ft | 10:47 AM / 7:41 PM |
| Fri Oct 30 | L 6:29 AM -0.8 ftH 2:34 PM 3.7 ftL 9:02 PM 1.9 ftH 11:43 PM 2.1 ft | 10:50 AM / 7:39 PM |
| Sat Oct 31 | L 7:25 AM -0.6 ftH 3:24 PM 3.5 ftL 10:01 PM 1.8 ft | 10:52 AM / 7:36 PM |
| Sun Nov 1 | H 12:58 AM 2.0 ftL 7:25 AM -0.2 ftH 3:17 PM 3.4 ftL 10:02 PM 1.5 ft | 9:55 AM / 6:33 PM |
| Mon Nov 2 | H 1:25 AM 1.9 ftL 8:31 AM 0.2 ftH 4:10 PM 3.2 ftL 10:53 PM 1.2 ft | 9:58 AM / 6:31 PM |
| Tue Nov 3 | H 3:49 AM 1.8 ftL 9:51 AM 0.6 ftH 4:57 PM 3.0 ftL 11:37 PM 0.8 ft | 10:00 AM / 6:28 PM |
| Wed Nov 4 | H 5:32 AM 2.0 ftL 11:09 AM 1.0 ftH 5:38 PM 2.8 ft | 10:03 AM / 6:26 PM |
| Thu Nov 5 | L 12:21 AM 0.5 ftH 6:52 AM 2.4 ftL 12:25 PM 1.3 ftH 6:16 PM 2.6 ft | 10:05 AM / 6:23 PM |
| Fri Nov 6 | L 1:04 AM 0.2 ftH 8:03 AM 2.7 ftL 1:48 PM 1.5 ftH 6:52 PM 2.4 ft | 10:08 AM / 6:20 PM |
| Sat Nov 7 | L 1:45 AM 0.0 ftH 8:59 AM 3.0 ftL 3:01 PM 1.6 ftH 7:24 PM 2.2 ft | 10:11 AM / 6:18 PM |
| Sun Nov 8 | L 2:23 AM -0.2 ftH 9:46 AM 3.3 ftL 4:00 PM 1.7 ftH 7:47 PM 2.0 ft | 10:13 AM / 6:15 PM |
| Mon Nov 9 | L 2:57 AM -0.3 ftH 10:30 AM 3.4 ftL 4:56 PM 1.7 ftH 7:53 PM 1.9 ft | 10:16 AM / 6:13 PM |
| Tue Nov 10 | L 3:29 AM -0.3 ftH 11:14 AM 3.5 ftL 5:57 PM 1.8 ftH 8:01 PM 1.8 ft | 10:19 AM / 6:11 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.
About the tides at Offshore St Matthew Island (Gnss Buoy)
Offshore St Matthew Island (Gnss Buoy) 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 1.9 ft between a high and the next low.
The biggest swings in this window come around Thursday, October 29, when the day's range reaches 4.5 ft, and again around Tuesday, November 10 (3.7 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 Thursday, October 22, with only 1.3 ft between the day's highest and lowest water.
The lowest tide of the month is -0.8 ft at 5:38 AM on Thursday, October 29. There are 14 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 3.7 ft at 1:44 PM on Thursday, October 29. 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: 9466229
- Type: reference (harmonic)
- Location: 60.3942, -172.4862
Nearby tide stations
- St. Matthew Island 8 mi