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 3h 53m 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 - Sep 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:196.910:497.73:294.53:280.37:409:41Third Quarter1Wed
2Thu8:547.011:367.84:134.84:12-0.17:429:38Third Quarter2Thu
3Fri9:387.24:584.94:59-0.47:449:35Waning Crescent3Fri
4Sat12:207.810:31 AM7.45:454.85:50-0.67:469:32Waning Crescent4Sat
5Sun1:027.811:31 AM7.56:344.46:43-0.67:489:29Waning Crescent5Sun
6Mon1:427.912:387.67:263.87:38-0.57:519:26Waning Crescent6Mon
7Tue2:238.01:507.78:203.08:34-0.17:539:24New Moon7Tue
8Wed3:058.13:077.89:172.19:330.47:559:21New Moon8Wed
9Thu3:518.24:258.110:141.110:341.07:579:18New Moon9Thu
10Fri4:398.35:398.411:110.211:361.77:599:15Waxing Crescent10Fri
11Sat5:298.36:508.812:09-0.58:029:12Waxing Crescent11Sat
12Sun6:228.37:579.212:392.21:07-1.08:049:09Waxing Crescent12Sun
13Mon7:188.19:009.41:422.62:05-1.28:069:06First Quarter13Mon
14Tue8:157.910:009.42:452.93:02-1.18:089:03First Quarter14Tue
15Wed9:147.710:599.33:463.13:59-0.98:109:00First Quarter15Wed
16Thu10:127.411:569.14:463.34:56-0.68:138:57First Quarter16Thu
17Fri11:107.15:453.35:51-0.28:158:54Waxing Gibbous17Fri
18Sat12:498.712:076.86:423.36:440.38:178:52Waxing Gibbous18Sat
19Sun1:388.31:026.67:343.27:340.98:198:49Waxing Gibbous19Sun
20Mon2:227.91:576.48:223.18:211.58:218:46Waxing Gibbous20Mon
21Tue3:007.52:526.49:052.99:062.18:248:43Full Moon21Tue
22Wed3:337.13:486.49:452.79:512.68:268:40Full Moon22Wed
23Thu4:026.84:446.610:222.410:363.28:288:37Full Moon23Thu
24Fri4:286.55:367.010:562.011:233.68:308:34Full Moon24Fri
25Sat4:546.46:277.311:301.68:328:31Waning Gibbous25Sat
26Sun5:216.37:157.712:104.012:051.38:358:28Waning Gibbous26Sun
27Mon5:486.38:028.012:594.312:410.98:378:25Waning Gibbous27Mon
28Tue6:196.38:478.21:464.51:210.68:398:22Waning Gibbous28Tue
29Wed6:556.49:328.32:324.72:030.38:418:20Third Quarter29Wed
30Thu7:406.610:158.33:154.72:490.08:448:17Third Quarter30Thu
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