St. Matthew Island — AK, United States
Tide times & tide chart
↑10:22am↓8:08pm
Predictions are not observations — conditions vary with weather and river flow. Not for navigation.
Slackwater predicts tides and currents offline, on your phone — tides worldwide, currents across the US and Canada.
Requires iOS 26 or later.
Tide times for the next 7 days
| Day | Tide | Time | Height |
|---|---|---|---|
| Mon 19 Oct 2026 | Low | 0.2 ft | |
| Mon 19 Oct 2026 | High | 1.8 ft | |
| Mon 19 Oct 2026 | Low | 1.4 ft | |
| Tue 20 Oct 2026 | High | 1.5 ft | |
| Tue 20 Oct 2026 | Low | 0.3 ft | |
| Tue 20 Oct 2026 | High | 1.7 ft | |
| Tue 20 Oct 2026 | Low | 1.2 ft | |
| Wed 21 Oct 2026 | High | 1.5 ft | |
| Wed 21 Oct 2026 | Low | 0.4 ft | |
| Wed 21 Oct 2026 | High | 1.6 ft | |
| Wed 21 Oct 2026 | Low | 1.0 ft | |
| Thu 22 Oct 2026 | High | 1.4 ft | |
| Thu 22 Oct 2026 | Low | 0.6 ft | |
| Thu 22 Oct 2026 | High | 1.6 ft | |
| Thu 22 Oct 2026 | Low | 0.8 ft | |
| Fri 23 Oct 2026 | High | 1.4 ft | |
| Fri 23 Oct 2026 | Low | 0.8 ft | |
| Fri 23 Oct 2026 | High | 1.6 ft | |
| Sat 24 Oct 2026 | Low | 0.5 ft | |
| Sat 24 Oct 2026 | High | 1.5 ft | |
| Sat 24 Oct 2026 | Low | 1.1 ft | |
| Sat 24 Oct 2026 | High | 1.7 ft | |
| Sun 25 Oct 2026 | Low | 0.3 ft | |
| Sun 25 Oct 2026 | High | 1.6 ft | |
| Sun 25 Oct 2026 | Low | 1.3 ft | |
| Sun 25 Oct 2026 | High | 1.9 ft |
Station facts
- Position
- 60.3583° N, 172.7150° W
- Time zone
- America/Nome
- Datum
- MLLW datum · NOAA reference highs and lows, adjusted by published offsets
- Region
- AK, United States
Heights are measured above chart datum. A negative height means there is that much less water than the charted depth shows.
Slackwater database (https://github.com/openwatersio/slackwater-database)
How we check predictions — dated samples and their limits.
Nearby
- Offshore St Matthew Island (GNSS Buoy)7.1 nm ENE
- MekoryukMekoryuk River Entrance · Nunivak Island194.2 nm E
- Niyrakpak Lagoon Entrance199.4 nm N
- Fossil River Entrance201.6 nm NNE
- Dall Point203.9 nm ENE
- Northeast Cape206.9 nm NNE