Alaska
Bay of Isles
South Arm · Alaska · NOAA station 9454652 · Tide predictions
60.3667, -147.7000
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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.
The next seven days
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H = high tide · L = low tide · highs & lows in local time
On the water nearby
Seal Rocks buoy · 31 mi E · Station 46061
Wind & wave reports →
Last light, longer plans
Daylight calendar for Seward → Alaska Daylight · Northern lights forecast for Seward → Alaska Aurora Forecast
Nearby tide stations
- Port Audrey · 2.8 mi SW
- Louis Bay · 6.6 mi N
- Snug Harbor, Knight Island · 8.1 mi S
- Herring Point · 8.1 mi NW
- Seal Island · 10.7 mi E
Plan ahead
2027 tide extremes for this station
Highest predicted high tide: 14.6 ft — Fri Jan 22 · 12:48 PM
Lowest predicted low tide: -3.4 ft — Mon Jul 5 · 9:07 AM
Biggest single-day swing: 17.6 ft on Fri Jan 22
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Mon Jul 5 | 9:07 AM | -3.4 ft |
| Sun Jul 4 | 8:22 AM | -3.4 ft |
| Sat Jun 5 | 8:34 AM | -3.3 ft |
| Sun Jun 6 | 9:20 AM | -3.3 ft |
| Tue Jul 6 | 9:52 AM | -3.0 ft |
| Mon Aug 2 | 8:05 AM | -3.0 ft |
| Sat Jul 3 | 7:35 AM | -2.9 ft |
| Mon Jun 7 | 10:07 AM | -2.9 ft |
| Fri Jun 4 | 7:49 AM | -2.9 ft |
| Tue Aug 3 | 8:47 AM | -2.9 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.
About this station
Bay of Isles, South Arm 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.