Offshore St Matthew Island (GNSS Buoy) tide predictions
60.3942, -172.4862 · NOAA station 9466229
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Tide now
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48-hour outlook
Drag across the curve to inspect any time. Weather icons show the forecast at each high tide.
Drawn from the high/low predictions — NOAA publishes high/low only for this station.
7-day tides
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H = high tide · L = low tide
About this station
Offshore St Matthew Island (GNSS Buoy) is one of NOAA's reference tide stations — its predictions are computed directly from harmonic analysis of water levels observed here, and other nearby stations are calculated from it.
Ranges here are small — often just a few feet — and wind-driven surge can swamp the astronomical prediction entirely. Many of these stations are ice-locked and quiet through the winter.
2027 tide extremes
Highest predicted high tide: 3.9 ft — Mon Jun 7 · 1:04 AM
Lowest predicted low tide: -1.0 ft — Sat Jul 3 · 3:01 PM
Biggest single-day swing: 4.8 ft on Sun Jun 6
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Sat Jul 3 | 3:01 PM | -1.0 ft |
| Sat Jun 5 | 4:08 PM | -1.0 ft |
| Sun Jul 4 | 3:56 PM | -0.9 ft |
| Sun Jun 6 | 4:55 PM | -0.9 ft |
| Fri Jul 2 | 2:04 PM | -0.8 ft |
| Fri Jun 4 | 3:21 PM | -0.8 ft |
| Mon Jul 5 | 4:48 PM | -0.8 ft |
| Sat Jul 31 | 1:46 PM | -0.7 ft |
| Sat May 8 | 5:10 PM | -0.7 ft |
| Sun Aug 1 | 2:50 PM | -0.7 ft |
180 minus tides (below 0 ft) are predicted here in 2027. The table shows up to the 10 lowest that fall between 7 AM and 7 PM — the ones worth planning a clam dig or tidepool walk around.
Nearest tide stations
- St. Matthew Island · 8.2 mi W
- Mekoryuk, Mekoryuk River Ent., Nunivak Island · 215.6 mi E
- Niyrakpak Lagoon entrance · 225.7 mi N
- Dall Point · 226.5 mi NE
- Fossil River entrance · 226.9 mi N