Alaska
Port Chalmers
Alaska · NOAA station 9454511 · Tide predictions
60.2418, -147.2490
Loading live tide data…
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.
The next seven days
Loading…
H = high tide · L = low tide · highs & lows in local time
On the water nearby
Seal Rocks buoy · 14 mi E · Station 46061
Wind & wave reports →
Last light, longer plans
Daylight calendar for Cordova → Alaska Daylight · Northern lights forecast for Cordova → Alaska Aurora Forecast
Nearby tide stations
- Gibbon Anchorage, Green Island · 6.8 mi W
- Perch Point · 9.4 mi SW
- Seal Island · 13.8 mi NW
- Snug Harbor, Knight Island · 16.1 mi W
- Bay of Isles, South Arm · 17.7 mi NW
Plan ahead
2027 tide extremes for this station
Highest predicted high tide: 14.7 ft — Fri Jan 22 · 12:45 PM
Lowest predicted low tide: -3.6 ft — Mon Jul 5 · 9:04 AM
Biggest single-day swing: 17.7 ft on Fri Jan 22
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Mon Jul 5 | 9:04 AM | -3.6 ft |
| Sun Jul 4 | 8:18 AM | -3.4 ft |
| Sun Jun 6 | 9:17 AM | -3.4 ft |
| Sat Jun 5 | 8:31 AM | -3.3 ft |
| Tue Jul 6 | 9:49 AM | -3.2 ft |
| Mon Jun 7 | 10:05 AM | -3.1 ft |
| Tue Aug 3 | 8:44 AM | -3.1 ft |
| Mon Aug 2 | 8:02 AM | -3.0 ft |
| Sat Jul 3 | 7:32 AM | -2.9 ft |
| Fri Jun 4 | 7:46 AM | -2.9 ft |
187 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.
About this station
Port Chalmers 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.
Alaska holds the country's most extreme tides: Inside Passage channels, Cook Inlet swings past 30 ft, and Arctic stations where the tide is measured in inches and wind setup runs the show.