51.8633’ N, 176.6320’ W

Adak Island, AK

65°
H 68°
L 58°
SSW
20mph
High tide
8:54 am

Tides Today & Tomorrow in Adak Island, AK

TIDE TIMES for Monday, August 31, 2026
The tide is currently rising in Adak Island, AK.
Next low tide : 1:40 pm (1.8 ft)
Next high tide : in 2h 21m at 8:54 am (2.2 ft)
Sunset today : 8:35 pm
Sunrise tomorrow : 6:57 am
Moon phase : Waning Gibbous (85% illuminated)
Tide Station Location : Station #9461380
Common Questions About Tides

Adak Island, AK Tides - Aug 1905

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:393.910:24-0.65:389:06New Moon1Tue
2Wed1:393.711:06-0.55:399:05Waxing Crescent2Wed
3Thu2:593.48:123.011:47-0.35:419:03Waxing Crescent3Thu
4Fri4:362.98:053.112:332.612:280.15:439:01Waxing Crescent4Fri
5Sat6:192.68:173.31:502.01:090.55:449:00Waxing Crescent5Sat
6Sun8:042.38:393.62:541.31:481.05:468:58First Quarter6Sun
7Mon9:522.29:073.83:520.72:261.55:478:56First Quarter7Mon
8Tue11:452.39:394.04:470.23:012.05:498:54First Quarter8Tue
9Wed10:154.15:41-0.35:508:52Waxing Gibbous9Wed
10Thu10:534.26:35-0.55:528:50Waxing Gibbous10Thu
11Fri11:334.17:27-0.75:548:49Waxing Gibbous11Fri
12Sat8:19-0.75:558:47Waxing Gibbous12Sat
13Sun12:153.99:09-0.65:578:45Full Moon13Sun
14Mon12:583.79:57-0.45:588:43Full Moon14Mon
15Tue1:453.47:363.010:43-0.110:352.96:008:41Full Moon15Tue
16Wed2:403.17:492.911:250.16:028:39Full Moon16Wed
17Thu3:482.87:592.912:092.612:040.46:038:37Waning Gibbous17Thu
18Fri5:082.58:062.91:152.212:400.86:058:35Waning Gibbous18Fri
19Sat6:362.38:132.92:051.91:131.16:078:32Waning Gibbous19Sat
20Sun8:102.28:233.02:481.51:441.56:088:30Waning Gibbous20Sun
21Mon9:532.28:363.13:281.12:101.86:108:28Third Quarter21Mon
22Tue11:502.38:513.24:080.82:262.26:118:26Third Quarter22Tue
23Wed9:083.44:480.56:138:24Third Quarter23Wed
24Thu9:273.55:280.36:158:22Third Quarter24Thu
25Fri9:523.76:080.16:168:20Waning Crescent25Fri
26Sat10:253.86:49-0.16:188:18Waning Crescent26Sat
27Sun11:073.87:30-0.26:208:15Waning Crescent27Sun
28Mon8:13-0.26:218:13New Moon28Mon
29Tue12:013.78:58-0.16:238:11New Moon29Tue
30Wed1:093.56:162.69:430.08:462.56:248:09New Moon30Wed
31Thu2:333.25:552.610:290.310:412.16:268:06New Moon31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9461380)

Common Questions About Adak Island, AK Tides

Collapse All
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 85% 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 (85% 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