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 4h 40m 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 - Oct 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:148.23:157.29:202.29:321.28:468:14Full Moon1Sat
2Sun3:597.94:247.310:121.810:281.98:488:11Full Moon2Sun
3Mon4:427.55:297.511:011.411:242.58:508:08Full Moon3Mon
4Tue5:227.16:297.811:471.28:538:05Waning Gibbous4Tue
5Wed6:016.87:258.112:203.112:311.08:558:02Waning Gibbous5Wed
6Thu6:396.58:168.41:163.51:140.88:577:59Waning Gibbous6Thu
7Fri7:196.39:058.62:113.81:560.78:597:57Waning Gibbous7Fri
8Sat8:016.19:518.63:044.02:390.79:027:54Third Quarter8Sat
9Sun8:456.110:378.63:544.13:220.89:047:51Third Quarter9Sun
10Mon9:306.011:228.54:424.24:060.89:067:48Third Quarter10Mon
11Tue10:166.05:294.24:510.99:087:45Third Quarter11Tue
12Wed12:048.311:04 AM6.06:144.15:351.19:117:43Waning Crescent12Wed
13Thu12:438.111:53 AM6.16:543.96:191.29:137:40Waning Crescent13Thu
14Fri1:177.812:446.27:313.67:041.59:157:37Waning Crescent14Fri
15Sat1:467.61:386.48:053.27:501.99:187:34Waning Crescent15Sat
16Sun2:127.52:376.88:402.68:392.39:207:31New Moon16Sun
17Mon2:397.43:417.29:171.89:332.89:227:29New Moon17Mon
18Tue3:117.44:457.89:590.910:303.29:257:26New Moon18Tue
19Wed3:497.45:468.510:450.111:293.69:277:23Waxing Crescent19Wed
20Thu4:357.56:469.111:35-0.69:297:21Waxing Crescent20Thu
21Fri5:277.67:449.612:293.812:29-1.19:327:18Waxing Crescent21Fri
22Sat6:257.68:419.91:303.81:26-1.49:347:15First Quarter22Sat
23Sun7:297.59:3710.02:313.72:25-1.49:367:13First Quarter23Sun
24Mon8:377.510:319.93:303.53:24-1.29:397:10First Quarter24Mon
25Tue9:467.411:259.74:293.14:25-0.89:417:07First Quarter25Tue
26Wed10:567.35:282.75:25-0.29:447:05Waxing Gibbous26Wed
27Thu12:169.412:077.26:262.26:260.59:467:02Waxing Gibbous27Thu
28Fri1:059.01:177.27:211.87:241.39:487:00Waxing Gibbous28Fri
29Sat1:508.52:267.38:141.48:222.19:516:57Waxing Gibbous29Sat
30Sun2:328.03:347.59:031.09:202.99:536:55Full Moon30Sun
31Mon3:127.44:397.89:480.810:193.69:566:52Full Moon31Mon
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