Heights in feet above Mean Lower Low Water (MLLW). Dots are NOAA's predicted highs and lows; the line between them is our interpolation. Shaded: night.
| Tide | Time | Height |
|---|---|---|
| Low tide | 1:30 AM | -0.95 ft |
| High tide | 10:20 AM | 5.68 ft |
| Low tide | 12:52 PM | 4.37 ft |
| High tide | 5:52 PM | 6.42 ft |
| Day | High tides | Low tides |
|---|---|---|
| Today Tue, Oct 27 | 10:20 AM 5.7 ft5:52 PM 6.4 ft | 1:30 AM -0.9 ft12:52 PM 4.4 ft |
| Tomorrow Wed, Oct 28 | 11:15 AM 6.2 ft6:57 PM 6.6 ft | 2:25 AM -1.4 ft2:27 PM 4.7 ft |
| Thu, Oct 29 | 11:57 AM 6.6 ft8:09 PM 6.7 ft | 3:22 AM -1.6 ft3:54 PM 4.7 ft |
| Fri, Oct 30 | 12:36 PM 6.8 ft9:21 PM 6.6 ft | 4:20 AM -1.7 ft5:10 PM 4.4 ft |
| Sat, Oct 31 | 1:14 PM 6.9 ft10:37 PM 6.4 ft | 5:17 AM -1.6 ft6:12 PM 4.0 ft |
| Sun, Nov 1 | 12:51 PM 6.9 ft10:54 PM 6.0 ft | 5:11 AM -1.3 ft6:11 PM 3.4 ft |
| Mon, Nov 2 | 1:28 PM 6.8 ft | 6:02 AM -0.8 ft7:11 PM 2.6 ft |
Orange: measured by NOAA's sensor, last 24 hours (6-minute data, preliminary). Dashed: predicted tide, through the next 24 hours. The prediction contains only the astronomical tide; wind, air pressure and river flow move the real water level away from it.
Cape Mordvinof is a subordinate station: NOAA computes its tides from Unalaska with fixed time and height corrections.
On Tuesday, October 27, high tide at Cape Mordvinof is at 10:20 AM (5.7 ft) and 5:52 PM (6.4 ft); low tide is at 1:30 AM (-0.9 ft) and 12:52 PM (4.4 ft) (AKDT, heights above MLLW). The table above lists the next 7 days.
The highest predicted tide in the next 12 months is 8.8 ft on December 23, 2026 at 3:17 PM. The largest tides fall a day or two after a full or new moon, especially when the Moon is closest to Earth.
Yes — on 215 days in the next 12 months the low tide drops below 0 ft (MLLW). The lowest is -2.1 ft on June 6, 2027 at 2:28 PM. Minus tides expose the most shoreline, which is why tide-poolers look for them.
Station local time (AKDT at the time this page was built), with daylight saving time applied where the area observes it — the same convention as NOAA's own tide tables.
From NOAA CO-OPS, the U.S. government tide station network (tidesandcurrents.noaa.gov); the predictions are public domain. Cape Mordvinof is a subordinate station: NOAA derives its times and heights from the reference station Unalaska with fixed corrections. The curve between highs and lows is our interpolation. This page is not for navigation.