Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Friday, July 31, 2026
The tide is currently falling in Adak Island, AK.
Next low tide : in 10h 00m at 1:36 pm (-0.2 ft)
Next high tide : 11:43 pm (3.1 ft)
Sunset today : 9:37 pm
Sunrise tomorrow : 6:08 am
Moon phase : Waning Gibbous (95% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Oct 2098

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:183.75:22-0.65:553.47:497:22First Quarter1Wed
2Thu3:093.66:11-0.56:413.47:507:20First Quarter2Thu
3Fri3:593.46:59-0.37:163.37:527:17First Quarter3Fri
4Sat4:453.27:45-0.17:493.17:547:15Waxing Gibbous4Sat
5Sun5:203.08:280.28:282.87:557:13Waxing Gibbous5Sun
6Mon12:183.05:362.79:070.59:202.57:577:11Waxing Gibbous6Mon
7Tue1:222.75:312.69:410.910:232.27:597:08Waxing Gibbous7Tue
8Wed2:502.45:142.510:091.311:221.88:017:06Full Moon8Wed
9Thu4:562.24:582.610:311.88:027:04Full Moon9Thu
10Fri8:312.34:442.812:121.310:32 AM2.38:047:02Full Moon10Fri
11Sat4:243.012:560.88:066:59Full Moon11Sat
12Sun4:043.41:360.48:076:57Waning Gibbous12Sun
13Mon3:583.72:17-0.18:096:55Waning Gibbous13Mon
14Tue4:304.03:00-0.48:116:53Waning Gibbous14Tue
15Wed5:514.13:45-0.78:126:51Waning Gibbous15Wed
16Thu7:194.14:33-0.98:146:49Third Quarter16Thu
17Fri8:424.05:21-0.98:166:46Third Quarter17Fri
18Sat10:053.86:10-0.88:186:44Third Quarter18Sat
19Sun3:393.26:57-0.57:043.08:196:42Waning Crescent19Sun
20Mon3:323.17:43-0.18:202.48:216:40Waning Crescent20Mon
21Tue1:073.03:343.08:250.59:331.78:236:38Waning Crescent21Tue
22Wed2:572.63:423.29:051.210:401.08:256:36New Moon22Wed
23Thu5:092.53:563.49:421.911:420.38:266:34New Moon23Thu
24Fri7:472.74:123.610:172.78:286:32New Moon24Fri
25Sat4:283.812:38-0.38:306:30New Moon25Sat
26Sun4:433.91:30-0.68:326:28Waxing Crescent26Sun
27Mon12:024.02:19-0.88:346:26Waxing Crescent27Mon
28Tue12:374.23:06-0.98:356:24Waxing Crescent28Tue
29Wed1:134.23:53-0.88:376:22Waxing Crescent29Wed
30Thu1:494.14:38-0.68:396:20First Quarter30Thu
31Fri2:233.95:22-0.48:416:18First Quarter31Fri
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 6:39 pm — 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 95% 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 Waning Gibbous (95% 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