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 (tomorrow) : 2:03 pm (0.1 ft)
Next high tide : in 6h 32m at 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 2099

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:202.75:232.81:440.91:242.77:487:22Waning Gibbous1Thu
2Fri12:413.12:210.57:507:20Waning Gibbous2Fri
3Sat1:353.52:590.27:527:18Waning Gibbous3Sat
4Sun2:303.73:38-0.17:537:16Waning Gibbous4Sun
5Mon5:483.84:20-0.37:557:13Third Quarter5Mon
6Tue7:303.95:04-0.57:577:11Third Quarter6Tue
7Wed8:483.95:49-0.67:587:09Third Quarter7Wed
8Thu10:033.86:34-0.68:007:07Third Quarter8Thu
9Fri11:223.67:18-0.48:027:04Waning Crescent9Fri
10Sat4:142.88:01-0.17:432.68:037:02Waning Crescent10Sat
11Sun12:523.23:562.78:420.49:111.98:057:00Waning Crescent11Sun
12Mon2:392.83:572.99:211.010:291.28:076:58New Moon12Mon
13Tue4:452.64:103.210:001.711:390.48:096:56New Moon13Tue
14Wed7:112.74:313.510:392.48:106:53New Moon14Wed
15Thu4:593.812:43-0.38:126:51Waxing Crescent15Thu
16Fri5:354.01:42-0.88:146:49Waxing Crescent16Fri
17Sat12:073.92:38-1.12:273.88:166:47Waxing Crescent17Sat
18Sun12:474.13:32-1.23:573.98:176:45Waxing Crescent18Sun
19Mon1:264.04:25-1.15:113.78:196:43First Quarter19Mon
20Tue2:053.95:17-0.96:143.58:216:41First Quarter20Tue
21Wed2:413.76:08-0.57:123.28:226:39First Quarter21Wed
22Thu3:143.56:55-0.18:102.88:246:36First Quarter22Thu
23Fri3:393.27:370.39:062.58:266:34Waxing Gibbous23Fri
24Sat12:372.73:533.08:140.89:592.08:286:32Waxing Gibbous24Sat
25Sun2:102.33:522.98:421.310:431.68:306:30Waxing Gibbous25Sun
26Mon4:262.13:412.98:551.911:211.28:316:28Waxing Gibbous26Mon
27Tue3:213.011:560.78:336:26Full Moon27Tue
28Wed2:463.38:356:25Full Moon28Wed
29Thu1:573.612:290.48:376:23Full Moon29Thu
30Fri1:263.91:040.08:386:21Full Moon30Fri
31Sat1:234.21:40-0.28:406:19Waning Gibbous31Sat
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 6:53 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 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