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

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Black Rock, Walrus Islands, AK.
Next low tide : in 4h 24m at 2:48 am (-0.1 ft)
Next high tide : 9:34 am (9.3 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 - Sep 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:478.36:598.312:250.07:399:41Waxing Crescent1Thu
2Fri6:358.48:068.712:482.01:21-0.77:419:39Waxing Crescent2Fri
3Sat7:288.49:109.01:492.52:19-1.27:439:36First Quarter3Sat
4Sun8:248.410:139.22:512.83:17-1.47:469:33First Quarter4Sun
5Mon9:238.211:149.23:533.14:16-1.47:489:30First Quarter5Mon
6Tue10:238.04:553.25:15-1.27:509:27Waxing Gibbous6Tue
7Wed12:139.011:25 AM7.75:573.26:13-0.87:529:24Waxing Gibbous7Wed
8Thu1:108.812:267.46:573.27:09-0.37:549:21Waxing Gibbous8Thu
9Fri2:038.51:267.17:543.08:030.27:579:18Waxing Gibbous9Fri
10Sat2:528.22:276.88:472.98:540.97:599:16Full Moon10Sat
11Sun3:387.83:286.79:372.79:441.58:019:13Full Moon11Sun
12Mon4:177.44:286.710:232.410:322.18:039:10Full Moon12Mon
13Tue4:527.15:256.811:052.211:202.78:059:07Full Moon13Tue
14Wed5:236.86:187.011:441.98:089:04Waning Gibbous14Wed
15Thu5:536.67:087.312:073.212:231.68:109:01Waning Gibbous15Thu
16Fri6:246.57:577.612:563.61:011.48:128:58Waning Gibbous16Fri
17Sat6:576.48:447.81:453.91:401.18:148:55Waning Gibbous17Sat
18Sun7:336.39:318.02:324.12:190.98:168:52Third Quarter18Sun
19Mon8:096.310:168.03:184.33:000.78:198:49Third Quarter19Mon
20Tue8:476.411:008.04:034.53:410.68:218:46Third Quarter20Tue
21Wed9:286.411:417.94:464.54:240.58:238:43Third Quarter21Wed
22Thu10:146.65:284.45:080.48:258:41Waning Crescent22Thu
23Fri12:187.811:06 AM6.76:094.15:560.58:278:38Waning Crescent23Fri
24Sat12:517.712:066.96:493.66:450.78:308:35Waning Crescent24Sat
25Sun1:237.71:097.27:322.97:371.08:328:32Waning Crescent25Sun
26Mon1:577.82:177.58:182.08:331.48:348:29New Moon26Mon
27Tue2:347.93:297.99:091.19:321.98:368:26New Moon27Tue
28Wed3:188.04:408.410:020.210:332.48:398:23New Moon28Wed
29Thu4:088.15:489.010:57-0.611:362.88:418:20Waxing Crescent29Thu
30Fri5:028.16:539.411:55-1.18:438:17Waxing Crescent30Fri
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 6:11 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