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

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Black Rock, Walrus Islands, AK.
Next low tide : 4:05 pm (0.9 ft)
Next high tide : in 51m at 9:34 am (9.3 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 - Dec 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:207.710:369.04:510.14:493.010:064:53Waning Crescent1Wed
2Thu12:298.25:42-0.75:533.810:084:52Waning Crescent2Thu
3Fri1:348.86:32-1.36:584.410:094:51Waning Crescent3Fri
4Sat12:028.42:379.27:23-1.68:024.810:114:50New Moon4Sat
5Sun12:498.03:379.68:14-1.69:064.910:134:49New Moon5Sun
6Mon1:427.54:329.89:06-1.510:084.810:144:49New Moon6Mon
7Tue2:417.15:239.89:57-1.211:084.610:164:48Waxing Crescent7Tue
8Wed3:446.76:129.810:47-0.810:174:47Waxing Crescent8Wed
9Thu4:496.36:569.712:074.311:37 AM-0.310:194:47Waxing Crescent9Thu
10Fri5:556.17:379.51:023.812:270.310:204:46Waxing Crescent10Fri
11Sat7:025.98:149.21:543.31:151.010:224:46First Quarter11Sat
12Sun8:085.98:498.92:412.82:031.710:234:45First Quarter12Sun
13Mon9:136.09:208.53:252.22:512.610:244:45First Quarter13Mon
14Tue10:186.39:498.14:061.73:413.410:254:45First Quarter14Tue
15Wed11:196.710:167.84:461.34:334.210:264:45Waxing Gibbous15Wed
16Thu12:177.15:230.95:274.910:274:45Waxing Gibbous16Thu
17Fri1:117.55:580.56:215.510:284:45Waxing Gibbous17Fri
18Sat2:037.96:320.27:135.910:294:45Waxing Gibbous18Sat
19Sun2:518.27:06-0.18:046.110:294:46Full Moon19Sun
20Mon3:378.57:43-0.48:546.210:304:46Full Moon20Mon
21Tue12:217.24:188.78:24-0.79:446.010:314:47Full Moon21Tue
22Wed1:137.14:579.09:09-0.910:335.610:314:47Full Moon22Wed
23Thu2:186.95:359.19:57-0.911:244.910:314:48Waning Gibbous23Thu
24Fri3:376.76:129.310:48-0.810:324:48Waning Gibbous24Fri
25Sat5:006.66:499.412:154.011:42 AM-0.310:324:49Waning Gibbous25Sat
26Sun6:246.77:279.51:073.012:370.310:324:50Third Quarter26Sun
27Mon7:456.98:069.51:581.91:351.210:324:51Third Quarter27Mon
28Tue9:027.38:479.42:500.82:352.110:324:52Third Quarter28Tue
29Wed10:157.89:299.23:42-0.23:383.110:324:53Third Quarter29Wed
30Thu11:248.310:148.94:35-0.94:433.910:324:54Waning Crescent30Thu
31Fri12:298.75:27-1.45:484.410:314:56Waning Crescent31Fri
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 12:49 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