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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Black Rock, Walrus Islands, AK.
Next low tide : in 2h 18m at 1:49 am (-1.1 ft)
Next high tide : 8:48 am (9.6 ft)
Sunset today : 11:54 pm
Sunrise tomorrow : 5:29 am
Moon phase : Waxing Crescent (29% illuminated)
Tide Station Location : Station #9465182
Common Questions About Tides

Black Rock, Walrus Islands, AK Tides - Dec 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:236.25:168.99:380.311:045.210:064:53Full Moon1Thu
2Fri2:565.95:579.110:140.311:575.210:074:52Waning Gibbous2Fri
3Sat3:365.76:369.210:520.410:094:51Waning Gibbous3Sat
4Sun4:245.57:139.312:465.011:30 AM0.410:114:50Waning Gibbous4Sun
5Mon5:185.57:499.21:304.812:100.510:134:49Waning Gibbous5Mon
6Tue6:175.48:239.12:114.512:510.710:144:49Waning Gibbous6Tue
7Wed7:175.48:558.92:504.11:331.010:164:48Third Quarter7Wed
8Thu8:185.59:238.73:273.72:151.410:174:47Third Quarter8Thu
9Fri9:205.79:488.54:013.12:591.910:194:47Third Quarter9Fri
10Sat10:226.110:118.44:342.43:472.610:204:46Waning Crescent10Sat
11Sun11:246.610:348.45:071.64:403.310:214:46Waning Crescent11Sun
12Mon12:237.35:420.65:374.010:234:45Waning Crescent12Mon
13Tue1:238.06:22-0.36:384.510:244:45Waning Crescent13Tue
14Wed2:238.67:06-1.17:414.910:254:45New Moon14Wed
15Thu12:258.53:229.37:56-1.78:465.110:264:45New Moon15Thu
16Fri1:188.44:199.88:51-2.19:505.010:274:45New Moon16Fri
17Sat2:218.15:1410.29:48-2.310:544.610:284:45Waxing Crescent17Sat
18Sun3:327.86:0810.410:46-2.211:584.010:294:45Waxing Crescent18Sun
19Mon4:497.57:0010.511:46-1.810:294:46Waxing Crescent19Mon
20Tue6:087.37:5110.41:013.312:46-1.210:304:46First Quarter20Tue
21Wed7:287.18:4010.22:022.51:46-0.410:304:46First Quarter21Wed
22Thu8:457.09:279.93:011.72:460.610:314:47First Quarter22Thu
23Fri10:027.110:129.43:581.03:461.710:314:48First Quarter23Fri
24Sat11:167.310:548.84:520.54:482.710:324:48Waxing Gibbous24Sat
25Sun12:257.75:420.15:503.710:324:49Waxing Gibbous25Sun
26Mon1:308.06:29-0.16:514.410:324:50Waxing Gibbous26Mon
27Tue12:087.52:308.47:11-0.27:525.010:324:51Waxing Gibbous27Tue
28Wed12:386.93:248.67:51-0.18:515.410:324:52Full Moon28Wed
29Thu1:066.54:128.88:290.09:475.510:324:53Full Moon29Thu
30Fri1:326.24:548.99:060.110:405.610:324:54Full Moon30Fri
31Sat2:035.95:329.09:430.211:265.510:314:55Full Moon31Sat
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 5:18 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 29% 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 Waxing Crescent (29% 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