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 : 3:26 am (1.4 ft)
Next high tide (tomorrow) : in 4m at 9:12 pm (3.0 ft)
Sunset today : 9:09 pm
Sunrise tomorrow : 6:32 am
Moon phase : Waxing Crescent (13% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Aug 1932

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:524.39:43-0.85:399:06New Moon1Mon
2Tue10:23-0.85:409:04New Moon2Tue
3Wed12:374.011:00-0.75:429:02New Moon3Wed
4Thu1:393.58:523.011:35-0.35:439:01Waxing Crescent4Thu
5Fri3:282.97:592.912:282.812:080.15:458:59Waxing Crescent5Fri
6Sat5:492.37:463.11:482.012:380.85:478:57Waxing Crescent6Sat
7Sun8:082.17:523.52:441.21:031.45:488:55First Quarter7Sun
8Mon10:462.18:103.93:350.41:122.15:508:53First Quarter8Mon
9Tue8:364.34:25-0.35:518:51First Quarter9Tue
10Wed9:114.55:17-0.85:538:50First Quarter10Wed
11Thu9:514.76:10-1.15:548:48Waxing Gibbous11Thu
12Fri10:374.77:03-1.25:568:46Waxing Gibbous12Fri
13Sat11:264.57:57-1.25:588:44Waxing Gibbous13Sat
14Sun8:50-1.15:598:42Full Moon14Sun
15Mon12:174.29:41-0.86:018:40Full Moon15Mon
16Tue1:113.810:28-0.56:038:38Full Moon16Tue
17Wed2:143.37:402.911:11-0.111:402.66:048:36Full Moon17Wed
18Thu3:352.87:362.811:510.46:068:34Waning Gibbous18Thu
19Fri5:172.47:342.81:022.112:270.96:078:32Waning Gibbous19Fri
20Sat7:152.27:352.91:561.51:001.46:098:29Waning Gibbous20Sat
21Sun9:272.27:383.02:401.01:281.96:118:27Waning Gibbous21Sun
22Mon11:402.57:463.23:190.61:442.46:128:25Third Quarter22Mon
23Tue7:573.43:590.36:148:23Third Quarter23Tue
24Wed8:123.64:390.06:168:21Third Quarter24Wed
25Thu8:353.85:21-0.26:178:19Third Quarter25Thu
26Fri9:064.06:05-0.36:198:17Waning Crescent26Fri
27Sat9:434.16:49-0.46:208:14Waning Crescent27Sat
28Sun10:264.17:32-0.56:228:12Waning Crescent28Sun
29Mon11:153.98:15-0.56:248:10Waning Crescent29Mon
30Tue8:55-0.36:258:08New Moon30Tue
31Wed12:173.69:35-0.16:278:05New Moon31Wed
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 12:19 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 13% 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 (13% 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