Adak tide times · NOAA station Adak Island

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Tide chart · today

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Adak at a glance

Tides: Once a day
Typical range: 3.7 fthigh to low
Highest of 2027: 5.5 ftWed, Jan 20
Lowest of 2027: -1.8 ftSun, Jun 6
Record high: 6.8 ftDec 28, 1966

The tide at Adak

Pattern: Once-daily
Usually just one high tide and one low tide a day, about 24 h 50 min apart. Form number 3.37.
Typical range: 3.7 ft from the higher high to the lower low on an average day (1.13 m) - a bigger range than 57% of the 235 places on this site. The mean range, high to low, is 2.9 ft.

2027: the biggest and smallest tides

The highest tides of 2027 - the king tides
Wed, Jan 20	12:09 pm	5.5 ft
Mon, Dec 13	12:52 pm	5.2 ft
Sat, Jul 3	1:37 am	5.0 ft

The lowest tides of 2027
Sun, Jun 6	1:35 pm	-1.8 ft	in daylight
Sun, Jul 4	12:24 pm	-1.7 ft	in daylight
Sun, May 9	2:47 pm	-1.6 ft	in daylight

220 low tides in 2027 drop below zero - below the average lower low water - and uncover more shore than usual.

Records

Highest water recorded: 6.8 ft (2.08 m) on Dec 28, 1966 - 3.1 ft above the average higher high.
Lowest water recorded: -3.1 ft (-0.93 m) on Nov 26, 2003.
Highest tide the moon and sun can raise: 5.6 ft (1.71 m) - the highest astronomical tide in NOAA’s 19-year cycle, which fell on Jan 9, 2005.

Tide times nearby

Atka108 mi east
Nikolski336 mi east

See the moon move the ocean - the same tide, on a globe seen from the moon.

Heights are above mean lower low water (MLLW), the zero of US charts; times are local. The year’s tides are NOAA’s official predictions - wind and air pressure can move the real water a foot or more. Form number: (K1+O1)/(M2+S2) from NOAA’s harmonic constants - below 0.25 twice-daily, above 3 once-daily. Alaska, 51.861°N 176.638°W. Predictions and records: NOAA CO-OPS, station 9461380. Not for navigation or safety. For a boat, a crossing of sand that floods, or a swim, use the official tables and local advice. No ads, no tracking.