Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently rising in Adak Island, AK.
Next low tide (tomorrow) : 5:58 am (0.4 ft)
Next high tide : in 6h 57m at 10:00 pm (3.4 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 - Sep 1950

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:472.57:053.02:140.81:302.26:588:34Waning Gibbous1Fri
2Sat11:342.77:153.22:550.42:012.67:008:32Third Quarter2Sat
3Sun7:293.43:360.17:018:30Third Quarter3Sun
4Mon7:493.64:170.07:038:27Third Quarter4Mon
5Tue8:173.75:01-0.27:048:25Third Quarter5Tue
6Wed8:523.85:45-0.27:068:23Waning Crescent6Wed
7Thu9:323.96:29-0.37:088:20Waning Crescent7Thu
8Fri10:163.87:13-0.37:098:18Waning Crescent8Fri
9Sat11:073.67:54-0.27:118:16Waning Crescent9Sat
10Sun8:34-0.17:138:13New Moon10Sun
11Mon12:143.39:120.37:148:11New Moon11Mon
12Tue1:502.95:022.49:490.710:171.97:168:09New Moon12Tue
13Wed3:532.64:522.610:261.311:361.17:178:06Waxing Crescent13Wed
14Thu6:062.55:003.011:031.97:198:04Waxing Crescent14Thu
15Fri8:232.65:213.412:380.411:39 AM2.57:218:02Waxing Crescent15Fri
16Sat5:523.81:34-0.27:227:59Waxing Crescent16Sat
17Sun6:344.12:29-0.77:247:57First Quarter17Sun
18Mon7:244.23:24-1.07:257:55First Quarter18Mon
19Tue8:214.34:20-1.17:277:52First Quarter19Tue
20Wed9:214.15:15-1.07:297:50Waxing Gibbous20Wed
21Thu10:233.96:10-0.87:307:48Waxing Gibbous21Thu
22Fri3:403.07:03-0.56:122.97:327:45Waxing Gibbous22Fri
23Sat4:002.87:53-0.17:352.57:347:43Waxing Gibbous23Sat
24Sun12:403.14:142.78:410.48:582.17:357:41Full Moon24Sun
25Mon2:082.74:232.69:270.910:121.77:377:38Full Moon25Mon
26Tue3:592.44:262.610:131.511:111.27:397:36Full Moon26Tue
27Wed6:132.44:272.711:032.011:570.87:407:34Full Moon27Wed
28Thu8:172.74:262.812:032.57:427:32Waning Gibbous28Thu
29Fri9:453.04:213.012:380.41:192.97:447:29Waning Gibbous29Fri
30Sat10:503.31:160.17:457:27Waning Gibbous30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9461380)

Common Questions About Adak Island, AK Tides

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

Slack tide in Adak Island, AK is approximately 1:59 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