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 |
|---|---|---|
| High tide | 3:11 AM | 3.14 ft |
| Low tide | 11:37 AM | -0.40 ft |
| Day | High tides | Low tides |
|---|---|---|
| Today Tue, Oct 27 | 3:11 AM 3.1 ft | 11:37 AM -0.4 ft |
| Tomorrow Wed, Oct 28 | 3:41 AM 3.7 ft | 12:16 PM -1.1 ft |
| Thu, Oct 29 | 4:16 AM 4.3 ft | 12:58 PM -1.6 ft |
| Fri, Oct 30 | 4:57 AM 4.7 ft | 1:41 PM -1.9 ft |
| Sat, Oct 31 | 5:40 AM 4.9 ft | 2:26 PM -2.0 ft |
| Sun, Nov 1 | 5:26 AM 4.9 ft | 2:14 PM -2.0 ft |
| Mon, Nov 2 | 6:12 AM 4.7 ft | 3:02 PM -1.8 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.
On Tuesday, October 27, high tide at Koyuk, Koyuk Inlet is at 3:11 AM (3.1 ft); low tide is at 11:37 AM (-0.4 ft) (AKDT, heights above MLLW). The table above lists the next 7 days.
The highest predicted tide in the next 12 months is 5.5 ft on July 5, 2027 at 2:44 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 296 days in the next 12 months the low tide drops below 0 ft (MLLW). The lowest is -2.5 ft on December 27, 2026 at 12:17 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. The curve between highs and lows is our interpolation. This page is not for navigation.