Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in Adak Island, AK.
Next low tide : 1:36 pm (-0.2 ft)
Next high tide : in 7h 02m at 2:22 am (3.5 ft)
Sunset today : 9:39 pm
Sunrise tomorrow : 6:06 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Apr 1960

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:303.011:213.02:212.72:390.17:198:20Waxing Crescent1Fri
2Sat7:013.03:112.83:220.17:178:22First Quarter2Sat
3Sun12:123.17:35 AM3.03:552.84:030.17:158:24First Quarter3Sun
4Mon12:593.08:14 AM3.04:332.84:450.17:138:25First Quarter4Mon
5Tue1:402.98:57 AM3.05:092.85:240.27:108:27First Quarter5Tue
6Wed2:112.89:46 AM2.95:452.66:020.47:088:29Waxing Gibbous6Wed
7Thu2:272.710:44 AM2.76:242.46:390.67:068:30Waxing Gibbous7Thu
8Fri2:282.611:53 AM2.67:102.27:140.97:048:32Waxing Gibbous8Fri
9Sat2:252.51:172.48:021.87:491.27:018:34Waxing Gibbous9Sat
10Sun2:282.62:542.38:561.48:251.66:598:35Full Moon10Sun
11Mon2:402.74:412.39:511.09:052.06:578:37Full Moon11Mon
12Tue3:002.96:342.510:460.59:532.46:558:39Full Moon12Tue
13Wed3:283.18:112.811:400.010:532.76:528:40Waning Gibbous13Wed
14Thu4:063.49:203.012:33-0.46:508:42Waning Gibbous14Thu
15Fri4:533.510:113.212:022.91:27-0.76:488:44Waning Gibbous15Fri
16Sat5:473.610:533.31:143.02:20-0.86:468:46Third Quarter16Sat
17Sun6:483.511:313.32:243.03:13-0.86:448:47Third Quarter17Sun
18Mon7:553.43:322.84:05-0.66:428:49Third Quarter18Mon
19Tue12:053.39:06 AM3.24:382.64:56-0.36:398:51Third Quarter19Tue
20Wed12:383.210:22 AM2.95:432.25:450.16:378:52Waning Crescent20Wed
21Thu1:083.111:44 AM2.66:471.86:320.56:358:54Waning Crescent21Thu
22Fri1:363.11:152.47:481.47:181.06:338:56Waning Crescent22Fri
23Sat2:013.02:582.38:461.08:031.56:318:57Waning Crescent23Sat
24Sun2:233.04:542.39:390.68:512.06:298:59New Moon24Sun
25Mon2:433.06:472.610:270.49:472.46:279:01New Moon25Mon
26Tue2:593.08:152.811:110.111:052.86:259:02New Moon26Tue
27Wed3:123.09:143.111:52-0.16:239:04Waxing Crescent27Wed
28Thu3:183.09:583.312:473.012:31-0.26:219:06Waxing Crescent28Thu
29Fri10:363.31:09-0.26:199:07Waxing Crescent29Fri
30Sat11:103.41:48-0.26:179:09Waxing Crescent30Sat
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 7:59 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 spring phase. Tonight's moon is 98% 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 near their weekly maximum.

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 Full Moon (98% illuminated). This places Adak Island, AK in a spring tide cycle, so tidal ranges are near their weekly maximum 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