Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in Adak Island, AK.
Next low tide : in 5h 14m at 5:20 am (1.1 ft)
Next high tide : 11:11 am (1.9 ft)
Sunset today : 9:30 pm
Sunrise tomorrow : 6:14 am
Moon phase : Third Quarter (63% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Feb 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:284.011:072.51:411.74:010.69:266:33First Quarter1Fri
2Sat8:524.22:112.34:540.19:256:35First Quarter2Sat
3Sun9:174.35:43-0.29:236:37First Quarter3Sun
4Mon9:414.46:31-0.39:216:39Waxing Gibbous4Mon
5Tue10:034.47:17-0.49:206:41Waxing Gibbous5Tue
6Wed10:244.48:02-0.39:186:42Waxing Gibbous6Wed
7Thu10:444.48:44-0.39:166:44Waxing Gibbous7Thu
8Fri11:064.39:24-0.29:156:46Waxing Gibbous8Fri
9Sat11:284.110:00-0.19:136:48Full Moon9Sat
10Sun11:493.810:320.19:116:50Full Moon10Sun
11Mon11:563.511:010.49:096:52Full Moon11Mon
12Tue9:053.211:280.79:076:54Full Moon12Tue
13Wed8:113.011:511.29:056:55Waning Gibbous13Wed
14Thu7:323.06:312.22:262.09:036:57Waning Gibbous14Thu
15Fri7:143.29:262.212:081.72:511.49:026:59Waning Gibbous15Fri
16Sat7:093.412:012.23:230.89:007:01Waning Gibbous16Sat
17Sun7:163.84:010.38:587:03Third Quarter17Sun
18Mon7:364.24:43-0.28:567:05Third Quarter18Mon
19Tue8:094.65:29-0.68:547:06Third Quarter19Tue
20Wed8:544.96:18-0.98:527:08Waning Crescent20Wed
21Thu9:465.07:08-1.08:497:10Waning Crescent21Thu
22Fri10:444.97:59-1.08:477:12Waning Crescent22Fri
23Sat11:484.68:48-0.78:457:14New Moon23Sat
24Sun12:594.29:36-0.38:437:16New Moon24Sun
25Mon5:482.92:243.68:522.710:230.28:417:17New Moon25Mon
26Tue5:442.94:053.010:452.111:080.88:397:19New Moon26Tue
27Wed5:573.16:002.712:121.48:377:21Waxing Crescent27Wed
28Thu6:183.38:062.61:210.88:357:23Waxing Crescent28Thu
29Fri6:443.510:062.812:382.02:200.38:337:25Waxing Crescent29Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9461380)

Common Questions About Adak Island, AK Tides

Show All
What time does the tide turn (slack tide) in Adak Island, AK today?

Slack tide in Adak Island, AK is approximately 8:15 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Adak Island, AK?

Adak Island, AK is currently in a transitional phase. Tonight's moon is 63% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are Adak Island, AK tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Adak Island, AK?

Tide predictions for Adak Island, AK come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Adak Island, AK?

Tide data for Adak Island, AK is sourced from NOAA Station #9461380. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9461380.

What is the moon phase in Adak Island, AK tonight?

Tonight the moon over Adak Island, AK is Third Quarter (63% illuminated). This places Adak Island, AK in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA