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 4h 31m 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 - Apr 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:358.16:147.112:290.11:133.68:049:24Waning Gibbous1Sun
2Mon8:328.57:037.21:18-0.52:103.88:019:26Waning Gibbous2Mon
3Tue9:288.87:587.22:11-0.93:073.97:589:29Third Quarter3Tue
4Wed10:248.98:597.33:06-1.24:053.97:559:31Third Quarter4Wed
5Thu11:198.910:057.24:05-1.25:043.77:529:33Third Quarter5Thu
6Fri12:128.85:05-1.16:023.37:499:35Waning Crescent6Fri
7Sat1:038.76:05-0.87:002.87:469:38Waning Crescent7Sat
8Sun12:257.11:518.57:05-0.47:562.27:449:40Waning Crescent8Sun
9Mon1:357.12:378.28:030.28:501.67:419:42New Moon9Mon
10Tue2:467.13:217.89:010.99:411.17:389:45New Moon10Tue
11Wed3:587.34:047.59:591.610:310.67:359:47New Moon11Wed
12Thu5:057.64:467.110:572.311:190.27:329:49New Moon12Thu
13Fri6:077.95:276.711:552.97:299:52Waxing Crescent13Fri
14Sat7:058.26:096.412:040.112:533.47:279:54Waxing Crescent14Sat
15Sun7:588.56:526.112:500.01:513.67:249:56Waxing Crescent15Sun
16Mon8:488.67:385.91:350.02:463.87:219:59Waxing Crescent16Mon
17Tue9:368.68:255.82:200.13:383.97:1810:01First Quarter17Tue
18Wed10:228.59:145.73:050.24:283.97:1610:03First Quarter18Wed
19Thu11:088.410:055.63:510.45:173.87:1310:06First Quarter19Thu
20Fri11:518.110:575.64:370.66:033.77:1010:08First Quarter20Fri
21Sat12:307.85:230.86:463.57:0710:10Waxing Gibbous21Sat
22Sun1:037.56:091.17:243.17:0510:13Waxing Gibbous22Sun
23Mon12:445.71:327.36:531.57:592.77:0210:15Waxing Gibbous23Mon
24Tue1:385.91:567.07:382.08:312.16:5910:17Waxing Gibbous24Tue
25Wed2:366.32:176.98:252.59:041.46:5710:19Full Moon25Wed
26Thu3:356.72:416.99:153.09:390.66:5410:22Full Moon26Thu
27Fri4:347.33:126.910:093.510:19-0.26:5110:24Full Moon27Fri
28Sat5:318.03:526.911:053.911:05-0.86:4910:26Waning Gibbous28Sat
29Sun6:278.64:407.012:034.16:4610:29Waning Gibbous29Sun
30Mon7:219.05:367.01:024.16:4410:31Waning Gibbous30Mon
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