Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Thursday, July 23, 2026
The tide is currently rising in Adak Island, AK.
Next low tide : 8:31 am (-0.3 ft)
Next high tide (tomorrow) : in 54m at 11:46 pm (3.8 ft)
Sunset today : 9:50 pm
Sunrise tomorrow : 5:55 am
Moon phase : First Quarter (64% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Jul 1971

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:033.57:120.85:3110:09First Quarter1Thu
2Fri11:023.77:420.35:3210:08Waxing Gibbous2Fri
3Sat11:054.08:13-0.15:3210:08Waxing Gibbous3Sat
4Sun11:174.38:47-0.45:3310:07Waxing Gibbous4Sun
5Mon11:384.59:23-0.75:3410:07Waxing Gibbous5Mon
6Tue10:02-0.95:3510:06Full Moon6Tue
7Wed12:104.610:43-1.15:3610:06Full Moon7Wed
8Thu12:484.711:24-1.25:3710:05Full Moon8Thu
9Fri1:334.512:05-1.25:3810:04Full Moon9Fri
10Sat2:254.212:45-1.15:3910:04Waning Gibbous10Sat
11Sun3:313.610:163.31:23-0.75:4010:03Waning Gibbous11Sun
12Mon5:143.09:543.32:362.91:58-0.25:4110:02Waning Gibbous12Mon
13Tue7:252.39:533.53:522.12:300.45:4210:01Third Quarter13Tue
14Wed9:451.910:043.84:501.22:551.15:4310:00Third Quarter14Wed
15Thu12:381.95:430.32:591.85:459:59Third Quarter15Thu
16Fri10:484.46:34-0.45:469:58Third Quarter16Fri
17Sat11:184.67:25-0.95:479:57Waning Crescent17Sat
18Sun11:504.78:16-1.25:489:56Waning Crescent18Sun
19Mon9:06-1.35:509:55Waning Crescent19Mon
20Tue12:264.69:57-1.35:519:54New Moon20Tue
21Wed1:024.510:46-1.15:529:53New Moon21Wed
22Thu1:364.211:32-1.05:549:51New Moon22Thu
23Fri2:083.810:473.412:14-0.75:559:50New Moon23Fri
24Sat10:143.212:52-0.45:569:49Waxing Crescent24Sat
25Sun10:053.11:250.05:589:47Waxing Crescent25Sun
26Mon9:553.01:530.55:599:46Waxing Crescent26Mon
27Tue7:422.09:463.04:321.92:171.06:019:44Waxing Crescent27Tue
28Wed9:561.99:413.25:001.42:331.56:029:43First Quarter28Wed
29Thu9:423.45:320.96:049:41First Quarter29Thu
30Fri9:483.66:060.56:059:40First Quarter30Fri
31Sat9:583.96:420.16:079:38First Quarter31Sat
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 4:08 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 64% 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 (64% 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