Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Sunday, August 16, 2026
The tide is currently rising in Adak Island, AK.
Next low tide (tomorrow) : 4:26 am (0.8 ft)
Next high tide : in 5h 37m at 9:26 pm (3.1 ft)
Sunset today : 9:07 pm
Sunrise tomorrow : 6:33 am
Moon phase : Waxing Crescent (20% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Apr 1931

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:092.51:412.98:001.98:370.76:527:48Full Moon1Wed
2Thu3:132.73:382.69:281.29:211.46:497:50Full Moon2Thu
3Fri3:293.05:492.610:420.410:082.16:477:52Full Moon3Fri
4Sat3:533.37:572.911:47-0.211:032.76:457:54Waning Gibbous4Sat
5Sun4:233.69:363.312:46-0.76:437:55Waning Gibbous5Sun
6Mon4:593.710:443.512:113.11:42-1.06:407:57Waning Gibbous6Mon
7Tue5:413.811:383.61:293.42:35-1.16:387:59Third Quarter7Tue
8Wed6:293.72:443.53:28-1.06:368:00Third Quarter8Wed
9Thu12:263.67:21 AM3.63:493.44:20-0.86:338:02Third Quarter9Thu
10Fri1:113.58:15 AM3.44:473.25:10-0.56:318:04Third Quarter10Fri
11Sat1:543.39:09 AM3.25:393.05:57-0.26:298:05Waning Crescent11Sat
12Sun2:303.110:05 AM2.96:302.76:390.26:278:07Waning Crescent12Sun
13Mon2:552.811:07 AM2.67:232.47:160.66:258:09Waning Crescent13Mon
14Tue3:062.612:282.38:182.17:461.06:228:10Waning Crescent14Tue
15Wed2:592.52:202.09:081.68:071.56:208:12Waning Crescent15Wed
16Thu2:442.55:252.19:521.28:082.06:188:14New Moon16Thu
17Fri2:282.610:320.86:168:16New Moon17Fri
18Sat2:072.811:090.36:148:17New Moon18Sat
19Sun1:333.111:460.06:128:19New Moon19Sun
20Mon1:013.412:25-0.46:098:21Waxing Crescent20Mon
21Tue12:483.71:06-0.66:078:22Waxing Crescent21Tue
22Wed1:173.91:50-0.96:058:24Waxing Crescent22Wed
23Thu2:414.02:35-1.06:038:26First Quarter23Thu
24Fri4:393.93:21-1.06:018:27First Quarter24Fri
25Sat6:143.84:06-0.95:598:29First Quarter25Sat
26Sun7:443.54:50-0.65:578:31First Quarter26Sun
27Mon1:313.09:19 AM3.15:132.75:31-0.25:558:32Waxing Gibbous27Mon
28Tue1:132.811:07 AM2.66:272.06:090.45:538:34Waxing Gibbous28Tue
29Wed1:112.91:082.27:351.26:431.25:518:36Waxing Gibbous29Wed
30Thu1:193.13:312.28:390.47:111.95:498:37Full Moon30Thu
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 12:56 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 20% 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 Waxing Crescent (20% 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