Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Friday, August 7, 2026
The tide is currently rising in Adak Island, AK.
Next low tide (tomorrow) : 8:18 am (-1.1 ft)
Next high tide : in 13h 47m at 11:08 pm (4.6 ft)
Sunset today : 9:25 pm
Sunrise tomorrow : 6:19 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Feb 1946

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:504.610:25-0.58:556:04New Moon1Fri
2Sat12:294.411:03-0.48:546:06New Moon2Sat
3Sun1:174.011:40-0.28:526:08New Moon3Sun
4Mon2:283.68:516:10Waxing Crescent4Mon
5Tue8:503.44:283.012:150.11:412.98:496:11Waxing Crescent5Tue
6Wed8:313.46:432.512:490.62:412.28:476:13Waxing Crescent6Wed
7Thu8:313.69:012.31:191.13:331.48:456:15First Quarter7Thu
8Fri8:433.911:472.41:451.84:230.68:446:17First Quarter8Fri
9Sat9:044.21:512.35:130.08:426:19First Quarter9Sat
10Sun9:324.56:03-0.58:406:21Waxing Gibbous10Sun
11Mon10:064.76:54-0.88:386:23Waxing Gibbous11Mon
12Tue10:464.87:46-0.98:366:24Waxing Gibbous12Tue
13Wed11:304.78:38-0.98:346:26Waxing Gibbous13Wed
14Thu12:184.59:28-0.78:336:28Full Moon14Thu
15Fri1:104.210:17-0.58:316:30Full Moon15Fri
16Sat2:093.811:03-0.28:296:32Full Moon16Sat
17Sun8:003.33:193.311:383.111:460.28:276:34Full Moon17Sun
18Mon8:043.24:452.91:092.68:256:35Waning Gibbous18Mon
19Tue8:093.26:242.512:250.72:102.18:236:37Waning Gibbous19Tue
20Wed8:133.28:142.31:011.12:571.68:216:39Waning Gibbous20Wed
21Thu8:183.210:162.41:331.63:391.28:196:41Waning Gibbous21Thu
22Fri8:243.32:002.14:180.88:166:43Third Quarter22Fri
23Sat8:343.54:570.58:146:45Third Quarter23Sat
24Sun8:463.75:370.28:126:46Third Quarter24Sun
25Mon9:023.96:170.08:106:48Third Quarter25Mon
26Tue9:244.06:58-0.18:086:50Waning Crescent26Tue
27Wed9:544.17:39-0.28:066:52Waning Crescent27Wed
28Thu10:304.28:20-0.38:046:54Waning Crescent28Thu
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 3:43 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 30% 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 Waning Crescent (30% 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