Bay of Waterfalls tide predictions
51.6417, -176.8250 · NOAA station 9461337
Full daylight calendar for the Adak area → Alaska Daylight · Northern lights forecast for Adak → Alaska Aurora Forecast
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
NOAA builds the predictions for Bay of Waterfalls from the Sweeper Cove, Kuluk Bay, Adak Island station: high tides about 0.95× the height, 80 min earlier; low tides about 0.95× the height, 124 min earlier.
Ranges shrink as you head down the chain, but the passes between islands rip hard on the change, and weather calls the shots year-round. Wind can hold water in or blow it out far beyond what the table says.
2027 tide extremes
Highest predicted high tide: 5.2 ft — Wed Jan 20 · 10:49 AM
Lowest predicted low tide: -1.7 ft — Sun Jun 6 · 11:31 AM
Biggest single-day swing: 6.4 ft on Wed Jan 20
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Sun Jun 6 | 11:31 AM | -1.7 ft |
| Mon Jun 7 | 12:20 PM | -1.6 ft |
| Sun Jul 4 | 10:20 AM | -1.6 ft |
| Sat Jun 5 | 10:41 AM | -1.6 ft |
| Sat Jul 3 | 9:30 AM | -1.6 ft |
| Mon Jul 5 | 11:09 AM | -1.5 ft |
| Sun May 9 | 12:43 PM | -1.5 ft |
| Mon May 10 | 1:33 PM | -1.5 ft |
| Tue Jun 8 | 1:07 PM | -1.4 ft |
| Fri Jun 4 | 9:52 AM | -1.4 ft |
220 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
- Unalga Bight · 9.6 mi N
- Boot Bay · 13.6 mi E
- Cape Chlanak · 14.5 mi W
- Kanaga Bay · 16.9 mi W
- Sweeper Cove, Kuluk Bay, Adak Island · 17.1 mi NE