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 4h 50m 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 - Apr 1959

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:223.29:21 AM3.54:242.75:18-0.47:218:19Third Quarter1Wed
2Thu1:053.110:24 AM3.35:292.56:09-0.17:198:21Waning Crescent2Thu
3Fri1:453.011:31 AM3.06:332.26:580.37:178:22Waning Crescent3Fri
4Sat2:202.912:422.77:362.07:450.77:148:24Waning Crescent4Sat
5Sun2:492.82:012.58:361.78:311.17:128:26Waning Crescent5Sun
6Mon3:122.73:332.39:321.49:151.67:108:27New Moon6Mon
7Tue3:292.75:192.310:221.110:011.97:078:29New Moon7Tue
8Wed3:412.67:052.511:060.910:522.37:058:31New Moon8Wed
9Thu3:522.78:302.711:460.611:502.57:038:32New Moon9Thu
10Fri4:052.89:352.912:250.47:018:34Waxing Crescent10Fri
11Sat4:202.910:263.012:542.81:040.26:598:36Waxing Crescent11Sat
12Sun4:392.911:113.11:552.91:430.16:568:37Waxing Crescent12Sun
13Mon5:053.011:523.22:483.02:230.06:548:39Waxing Crescent13Mon
14Tue5:413.03:303.03:040.06:528:41First Quarter14Tue
15Wed12:293.16:29 AM3.04:023.03:430.06:508:43First Quarter15Wed
16Thu12:573.07:27 AM3.04:312.94:220.06:488:44First Quarter16Thu
17Fri1:092.98:34 AM2.85:032.74:590.26:458:46First Quarter17Fri
18Sat1:072.89:51 AM2.75:422.45:360.46:438:48Waxing Gibbous18Sat
19Sun1:032.711:18 AM2.56:292.06:130.86:418:49Waxing Gibbous19Sun
20Mon1:082.712:552.37:221.56:501.26:398:51Waxing Gibbous20Mon
21Tue1:222.92:402.38:190.97:301.76:378:53Full Moon21Tue
22Wed1:453.14:332.49:180.48:152.16:358:54Full Moon22Wed
23Thu2:163.46:252.710:17-0.29:122.66:338:56Full Moon23Thu
24Fri2:563.67:523.011:15-0.610:272.96:318:58Waning Gibbous24Fri
25Sat3:433.78:523.212:12-0.96:298:59Waning Gibbous25Sat
26Sun4:383.79:393.41:08-1.16:279:01Waning Gibbous26Sun
27Mon5:393.610:213.51:163.02:03-1.06:259:03Waning Gibbous27Mon
28Tue6:443.411:003.52:342.92:56-0.96:239:05Third Quarter28Tue
29Wed7:543.111:373.43:472.63:47-0.56:219:06Third Quarter29Wed
30Thu9:082.84:562.34:36-0.16:199:08Third Quarter30Thu
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