Alaska
Chiachi Island (east side)
Alaska · NOAA station 9459085 · Tide predictions
55.8433, -159.1050
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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
Shumagin Islands buoy · 148 mi SW · Station 46075
Wind & wave reports →
Last light, longer plans
Daylight calendar for King Salmon → Alaska Daylight · Northern lights forecast for King Salmon → Alaska Aurora Forecast
Nearby tide stations
- Kupreanof Harbor, Paul Island · 10.2 mi W
- Mitrofania Island · 11.5 mi E
- Ivanof Bay · 15.5 mi W
- Hump Island, Kuiukta Bay · 27.1 mi NE
- Dent Point, Stepovak Bay · 30.4 mi W
Plan ahead
2027 tide extremes for this station
Highest predicted high tide: 9.8 ft — Fri Jan 22 · 1:44 PM
Lowest predicted low tide: -3.2 ft — Mon Jul 5 · 10:25 AM
Biggest single-day swing: 12.7 ft on Mon Jul 5
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Mon Jul 5 | 10:25 AM | -3.2 ft |
| Sun Jun 6 | 10:38 AM | -3.0 ft |
| Tue Jul 6 | 11:08 AM | -3.0 ft |
| Sun Jul 4 | 9:41 AM | -3.0 ft |
| Sat Jun 5 | 9:52 AM | -2.8 ft |
| Mon Jun 7 | 11:24 AM | -2.8 ft |
| Tue Aug 3 | 10:03 AM | -2.8 ft |
| Mon Aug 2 | 9:23 AM | -2.7 ft |
| Sat May 8 | 10:46 AM | -2.5 ft |
| Wed Aug 4 | 10:42 AM | -2.4 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
NOAA builds the predictions for Chiachi Island (east side) from the KODIAK, Womens Bay station: high tides about 0.89× the height, 22 min later; low tides about 1.28× the height, 37 min later.
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.