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

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Black Rock, Walrus Islands, AK.
Next low tide (tomorrow) : 3:48 am (1.0 ft)
Next high tide : in 3h 54m at 10:02 pm (6.6 ft)
Sunset today : 11:55 pm
Sunrise tomorrow : 5:30 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9465182
Common Questions About Tides

Black Rock, Walrus Islands, AK Tides - Apr 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:098.85:277.611:562.68:069:22Waning Gibbous1Thu
2Fri7:129.06:227.412:15-1.012:582.98:039:25Waning Gibbous2Fri
3Sat8:129.27:187.11:10-1.01:593.28:009:27Waning Gibbous3Sat
4Sun9:099.28:166.92:05-0.92:593.37:579:29Third Quarter4Sun
5Mon10:039.09:136.63:00-0.63:563.37:549:31Third Quarter5Mon
6Tue10:568.810:106.43:53-0.24:523.37:519:34Third Quarter6Tue
7Wed11:458.411:086.24:460.25:463.17:489:36Third Quarter7Wed
8Thu12:318.15:380.66:373.07:469:38Waning Crescent8Thu
9Fri12:056.11:107.76:271.17:222.77:439:41Waning Crescent9Fri
10Sat1:006.11:457.37:141.78:032.47:409:43Waning Crescent10Sat
11Sun1:566.12:146.98:002.38:402.17:379:45Waning Crescent11Sun
12Mon2:516.32:406.68:462.89:151.77:349:48New Moon12Mon
13Tue3:476.63:036.39:323.49:481.37:319:50New Moon13Tue
14Wed4:416.93:266.210:203.810:210.97:299:52New Moon14Wed
15Thu5:317.43:506.111:084.210:560.47:269:55New Moon15Thu
16Fri6:197.84:216.211:564.411:340.07:239:57Waxing Crescent16Fri
17Sat7:058.15:006.312:454.67:209:59Waxing Crescent17Sat
18Sun7:518.45:476.412:16-0.41:344.67:1810:02Waxing Crescent18Sun
19Mon8:368.56:436.51:04-0.62:224.47:1510:04Waxing Crescent19Mon
20Tue9:218.67:476.51:55-0.83:104.17:1210:06First Quarter20Tue
21Wed10:048.58:566.62:48-0.84:003.67:0910:08First Quarter21Wed
22Thu10:478.510:096.73:43-0.64:523.07:0710:11First Quarter22Thu
23Fri11:298.411:236.94:40-0.25:452.27:0410:13Waxing Gibbous23Fri
24Sat12:108.35:390.46:381.37:0110:15Waxing Gibbous24Sat
25Sun12:367.212:518.26:401.17:300.46:5910:18Waxing Gibbous25Sun
26Mon1:487.51:328.07:411.88:21-0.46:5610:20Full Moon26Mon
27Tue2:578.02:167.88:432.59:13-1.06:5310:22Full Moon27Tue
28Wed4:058.43:037.59:453.010:04-1.36:5110:25Full Moon28Wed
29Thu5:088.83:547.210:473.410:56-1.46:4810:27Full Moon29Thu
30Fri6:069.14:496.811:483.611:47-1.36:4510:29Waning Gibbous30Fri
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 12:55 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 neap phase. Tonight's moon is 49% 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 minimum.

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 (49% illuminated). This places Black Rock, Walrus Islands, AK in a neap tide cycle, so tidal ranges are near their weekly minimum 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