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

TIDE TIMES for Thursday, June 18, 2026
The tide is currently rising in Black Rock, Walrus Islands, AK.
Next low tide : 1:05 pm (3.5 ft)
Next high tide : in 5h 12m at 7:11 am (9.7 ft)
Sunset today : 11:54 pm
Sunrise tomorrow : 5:29 am
Moon phase : Waxing Crescent (19% illuminated)
Tide Station Location : Station #9465182
Common Questions About Tides

Black Rock, Walrus Islands, AK Tides - Apr 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:307.810:126.44:180.65:183.98:049:24Third Quarter1Fri
2Sat12:097.75:030.56:003.68:019:26Waning Crescent2Sat
3Sun12:457.75:500.56:433.27:589:28Waning Crescent3Sun
4Mon12:006.81:217.86:400.57:272.57:569:30Waning Crescent4Mon
5Tue1:017.11:587.87:330.78:141.87:539:33Waning Crescent5Tue
6Wed2:057.42:397.98:290.99:040.97:509:35New Moon6Wed
7Thu3:147.83:258.09:271.39:580.17:479:37New Moon7Thu
8Fri4:238.24:168.010:281.610:53-0.67:449:40New Moon8Fri
9Sat5:318.65:108.111:301.911:50-1.17:419:42Waxing Crescent9Sat
10Sun6:379.06:088.012:332.17:389:44Waxing Crescent10Sun
11Mon7:419.37:097.912:48-1.51:372.37:369:47Waxing Crescent11Mon
12Tue8:439.58:127.71:48-1.52:402.37:339:49First Quarter12Tue
13Wed9:439.59:177.52:47-1.43:422.37:309:51First Quarter13Wed
14Thu10:419.410:227.33:46-1.04:442.17:279:54First Quarter14Thu
15Fri11:379.111:287.14:45-0.65:442.07:249:56First Quarter15Fri
16Sat12:318.75:440.06:421.87:229:58Waxing Gibbous16Sat
17Sun12:316.91:208.36:410.67:361.77:1910:00Waxing Gibbous17Sun
18Mon1:326.82:047.87:351.28:241.57:1610:03Waxing Gibbous18Mon
19Tue2:316.82:437.38:261.99:091.47:1310:05Waxing Gibbous19Tue
20Wed3:286.83:186.89:162.59:491.37:1110:07Full Moon20Wed
21Thu4:216.93:496.410:043.010:271.27:0810:10Full Moon21Thu
22Fri5:107.14:196.110:513.411:021.17:0510:12Full Moon22Fri
23Sat5:567.44:496.011:383.611:370.97:0210:14Full Moon23Sat
24Sun6:407.75:215.812:253.87:0010:17Waning Gibbous24Sun
25Mon7:247.95:565.812:120.81:123.96:5710:19Waning Gibbous25Mon
26Tue8:068.16:345.712:480.61:593.96:5410:21Waning Gibbous26Tue
27Wed8:488.27:165.71:260.52:443.96:5210:24Waning Gibbous27Wed
28Thu9:288.28:035.82:060.43:273.86:4910:26Third Quarter28Thu
29Fri10:078.28:555.92:480.44:093.66:4710:28Third Quarter29Fri
30Sat10:448.19:536.03:320.54:503.26:4410:31Third Quarter30Sat
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 10:08 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 spring phase. Tonight's moon is 19% 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 maximum.

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 (19% illuminated). This places Black Rock, Walrus Islands, AK in a spring tide cycle, so tidal ranges are near their weekly maximum 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