Tides Today & Tomorrow in Black Rock, Walrus Islands, AK

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Black Rock, Walrus Islands, AK.
Next low tide : 3:07 pm (1.7 ft)
Next high tide : in 3h 17m at 8:48 am (9.6 ft)
Sunset today : 11:54 pm
Sunrise tomorrow : 5:30 am
Moon phase : First Quarter (39% illuminated)
Tide Station Location : Station #9465182
Common Questions About Tides

Black Rock, Walrus Islands, AK Tides - May 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:159.36:397.012:49-1.62:014.06:4110:33Waning Gibbous1Tue
2Wed9:099.57:486.91:47-1.72:593.76:3910:36Third Quarter2Wed
3Thu10:029.59:016.82:47-1.63:583.26:3610:38Third Quarter3Thu
4Fri10:549.310:166.73:47-1.24:572.76:3410:40Third Quarter4Fri
5Sat11:449.111:316.74:48-0.75:552.06:3110:43Waning Crescent5Sat
6Sun12:328.85:500.06:521.36:2910:45Waning Crescent6Sun
7Mon12:466.81:178.46:510.97:450.76:2610:47Waning Crescent7Mon
8Tue1:587.01:597.97:511.78:350.26:2410:49Waning Crescent8Tue
9Wed3:097.32:397.48:512.59:22-0.26:2210:52New Moon9Wed
10Thu4:157.73:186.89:523.210:07-0.36:1910:54New Moon10Thu
11Fri5:158.13:566.410:513.710:49-0.46:1710:56New Moon11Fri
12Sat6:088.44:366.011:504.111:31-0.46:1510:58New Moon12Sat
13Sun6:568.75:165.712:464.26:1311:01Waxing Crescent13Sun
14Mon7:418.86:005.512:12-0.31:404.36:1111:03Waxing Crescent14Mon
15Tue8:238.96:485.412:53-0.12:304.26:0811:05Waxing Crescent15Tue
16Wed9:048.87:395.31:360.03:174.06:0611:07Waxing Crescent16Wed
17Thu9:448.68:335.22:190.24:023.86:0411:09First Quarter17Thu
18Fri10:238.49:305.23:020.44:463.66:0211:11First Quarter18Fri
19Sat10:588.210:295.23:450.85:273.26:0011:13First Quarter19Sat
20Sun11:307.911:295.44:291.26:052.75:5811:15First Quarter20Sun
21Mon11:577.65:141.86:402.25:5711:17Waxing Gibbous21Mon
22Tue12:295.712:187.46:022.47:111.55:5511:19Waxing Gibbous22Tue
23Wed1:286.112:387.36:533.07:430.75:5311:21Waxing Gibbous23Wed
24Thu2:276.71:017.37:473.78:18-0.15:5111:23Waxing Gibbous24Thu
25Fri3:257.41:327.38:444.28:59-0.95:5011:25Full Moon25Fri
26Sat4:228.12:147.39:444.59:45-1.65:4811:27Full Moon26Sat
27Sun5:178.73:057.310:444.710:37-2.05:4611:29Full Moon27Sun
28Mon6:109.24:067.311:444.611:32-2.35:4511:30Waning Gibbous28Mon
29Tue7:039.65:157.112:454.35:4411:32Waning Gibbous29Tue
30Wed7:559.86:287.012:29-2.31:453.85:4211:34Waning Gibbous30Wed
31Thu8:469.87:466.81:29-2.12:453.15:4111:35Third Quarter31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9465182)

Common Questions About Black Rock, Walrus Islands, AK Tides

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What time does the tide turn (slack tide) in Black Rock, Walrus Islands, AK today?

Slack tide in Black Rock, Walrus Islands, AK is approximately 11:57 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 Black Rock, Walrus Islands, AK?

Black Rock, Walrus Islands, AK is currently in a transitional phase. Tonight's moon is 39% 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 Black Rock, Walrus Islands, 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 Black Rock, Walrus Islands, AK?

Tide predictions for Black Rock, Walrus Islands, 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 Black Rock, Walrus Islands, AK?

Tide data for Black Rock, Walrus Islands, AK is sourced from NOAA Station #9465182. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9465182.

What is the moon phase in Black Rock, Walrus Islands, AK tonight?

Tonight the moon over Black Rock, Walrus Islands, AK is First Quarter (39% illuminated). This places Black Rock, Walrus Islands, 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