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 5h 03m at 4:05 pm (0.9 ft)
Next high tide : 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 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:476.52:158.17:160.38:183.08:059:23Waxing Gibbous1Tue
2Wed1:446.32:567.68:050.99:042.88:029:25Waxing Gibbous2Wed
3Thu2:426.13:317.18:521.59:462.57:599:27Full Moon3Thu
4Fri3:406.23:596.79:372.210:222.27:569:30Full Moon4Fri
5Sat4:376.34:226.410:232.810:561.87:549:32Full Moon5Sat
6Sun5:306.74:436.111:103.411:281.57:519:34Full Moon6Sun
7Mon6:217.15:056.011:583.87:489:37Waning Gibbous7Mon
8Tue7:107.55:285.912:001.112:494.27:459:39Waning Gibbous8Tue
9Wed7:587.95:545.912:330.81:394.57:429:41Waning Gibbous9Wed
10Thu8:448.16:265.91:090.52:284.67:399:44Waning Gibbous10Thu
11Fri9:308.37:066.01:490.23:134.87:369:46Third Quarter11Fri
12Sat10:148.37:556.12:320.03:564.87:349:48Third Quarter12Sat
13Sun10:578.28:516.33:19-0.24:394.67:319:51Third Quarter13Sun
14Mon11:378.19:556.54:08-0.35:234.27:289:53Third Quarter14Mon
15Tue12:158.05:01-0.36:083.67:259:55Waning Crescent15Tue
16Wed12:508.05:56-0.16:542.77:229:57Waning Crescent16Wed
17Thu12:196.91:258.06:530.37:431.77:2010:00Waning Crescent17Thu
18Fri1:327.22:027.97:511.08:330.67:1710:02New Moon18Fri
19Sat2:477.62:427.98:521.79:25-0.47:1410:04New Moon19Sat
20Sun4:028.13:287.89:552.310:18-1.27:1110:07New Moon20Sun
21Mon5:138.74:197.711:002.911:13-1.77:0910:09Waxing Crescent21Mon
22Tue6:189.25:147.512:053.37:0610:11Waxing Crescent22Tue
23Wed7:219.66:137.212:09-1.91:103.47:0310:14Waxing Crescent23Wed
24Thu8:209.77:177.01:06-1.92:133.47:0110:16Waxing Crescent24Thu
25Fri9:189.78:226.72:04-1.63:153.36:5810:18First Quarter25Fri
26Sat10:139.59:276.53:02-1.24:153.16:5510:21First Quarter26Sat
27Sun11:069.110:326.33:58-0.65:142.96:5310:23First Quarter27Sun
28Mon11:568.711:376.14:540.06:112.66:5010:25First Quarter28Mon
29Tue12:418.25:490.77:022.36:4710:28Waxing Gibbous29Tue
30Wed12:416.01:207.76:421.47:481.96:4510:30Waxing Gibbous30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9465182)

Common Questions About Black Rock, Walrus Islands, AK Tides

Show All
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 7:03 pm — 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