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 5h 45m 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 - Mar 2040

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:376.25:167.410:431.611:392.58:337:12Waning Gibbous1Thu
2Fri5:416.55:417.411:302.28:307:14Waning Gibbous2Fri
3Sat6:446.96:087.512:171.712:212.88:277:17Waning Gibbous3Sat
4Sun7:457.46:427.612:580.91:153.48:247:19Third Quarter4Sun
5Mon8:447.87:227.71:430.12:103.98:217:21Third Quarter5Mon
6Tue9:438.28:097.82:32-0.53:074.28:197:24Third Quarter6Tue
7Wed10:408.59:027.83:25-0.94:064.48:167:26Third Quarter7Wed
8Thu11:368.610:017.94:21-1.25:064.38:137:29Waning Crescent8Thu
9Fri12:298.75:19-1.46:054.18:107:31Waning Crescent9Fri
10Sat1:218.66:17-1.37:033.78:077:33Waning Crescent10Sat
11Sun12:117.73:128.58:14-1.19:013.29:048:36New Moon11Sun
12Mon2:207.54:018.49:11-0.69:582.69:018:38New Moon12Mon
13Tue3:347.34:478.310:080.010:541.98:598:40New Moon13Tue
14Wed4:497.35:328.111:050.711:471.38:568:43New Moon14Wed
15Thu6:007.46:167.812:021.48:538:45Waxing Crescent15Thu
16Fri7:087.76:597.612:400.81:012.28:508:47Waxing Crescent16Fri
17Sat8:127.97:427.21:300.42:002.88:478:49Waxing Crescent17Sat
18Sun9:118.28:266.92:190.22:583.38:448:52First Quarter18Sun
19Mon10:078.39:116.63:070.23:553.78:418:54First Quarter19Mon
20Tue11:018.49:566.43:540.24:513.98:388:56First Quarter20Tue
21Wed11:538.310:416.34:420.35:454.18:358:59First Quarter21Wed
22Thu12:418.25:290.46:364.28:339:01Waxing Gibbous22Thu
23Fri1:268.06:150.57:224.28:309:03Waxing Gibbous23Fri
24Sat12:126.12:077.76:590.68:054.18:279:06Waxing Gibbous24Sat
25Sun12:586.02:437.57:410.88:443.98:249:08Waxing Gibbous25Sun
26Mon1:466.03:157.28:221.09:213.58:219:10Full Moon26Mon
27Tue2:396.13:437.19:031.39:553.08:189:12Full Moon27Tue
28Wed3:376.24:086.99:471.810:302.48:159:15Full Moon28Wed
29Thu4:386.64:336.910:342.211:061.68:129:17Full Moon29Thu
30Fri5:387.05:016.911:242.711:450.88:099:19Waning Gibbous30Fri
31Sat6:377.65:347.012:173.28:079:22Waning Gibbous31Sat
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