Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Saturday, August 22, 2026
The tide is currently rising in Adak Island, AK.
Next low tide : 8:22 am (-0.3 ft)
Next high tide (tomorrow) : in 1h 50m at 11:02 pm (3.8 ft)
Sunset today : 8:57 pm
Sunrise tomorrow : 6:41 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Apr 1922

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:033.012:262.71:340.36:517:49Waxing Crescent1Sat
2Sun5:283.12:160.16:497:50Waxing Crescent2Sun
3Mon6:043.32:59-0.16:477:52First Quarter3Mon
4Tue6:523.43:44-0.36:447:54First Quarter4Tue
5Wed7:513.44:29-0.36:427:56First Quarter5Wed
6Thu1:212.98:57 AM3.44:002.85:14-0.26:407:57First Quarter6Thu
7Fri1:202.810:10 AM3.25:052.56:000.06:387:59Waxing Gibbous7Fri
8Sat1:282.811:31 AM3.06:122.16:460.46:358:01Waxing Gibbous8Sat
9Sun1:452.81:002.87:211.67:330.86:338:02Waxing Gibbous9Sun
10Mon2:082.92:362.68:311.18:231.36:318:04Full Moon10Mon
11Tue2:383.04:192.69:380.69:171.86:298:06Full Moon11Tue
12Wed3:133.26:022.710:420.110:182.26:268:07Full Moon12Wed
13Thu3:523.37:332.911:42-0.311:272.56:248:09Waning Gibbous13Thu
14Fri4:353.48:473.212:39-0.56:228:11Waning Gibbous14Fri
15Sat5:223.49:473.312:412.71:33-0.66:208:12Waning Gibbous15Sat
16Sun6:113.310:383.41:552.82:25-0.66:188:14Waning Gibbous16Sun
17Mon7:033.211:253.43:042.83:15-0.46:158:16Third Quarter17Mon
18Tue7:563.04:092.74:02-0.26:138:18Third Quarter18Tue
19Wed12:073.38:52 AM2.85:092.54:470.16:118:19Third Quarter19Wed
20Thu12:443.19:51 AM2.66:032.35:290.46:098:21Third Quarter20Thu
21Fri1:133.010:56 AM2.46:522.16:070.76:078:23Waning Crescent21Fri
22Sat1:342.812:102.27:371.86:401.16:058:24Waning Crescent22Sat
23Sun1:462.71:402.08:181.57:071.56:038:26Waning Crescent23Sun
24Mon1:512.73:392.08:571.27:271.96:018:28Waning Crescent24Mon
25Tue1:542.79:350.95:598:29New Moon25Tue
26Wed1:572.810:130.65:578:31New Moon26Wed
27Thu1:582.910:520.35:558:33New Moon27Thu
28Fri1:593.111:310.05:538:34New Moon28Fri
29Sat2:073.212:11-0.35:518:36Waxing Crescent29Sat
30Sun2:293.311:243.412:53-0.45:498:38Waxing Crescent30Sun
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 3:42 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 67% 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 First Quarter (67% 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