Tides Today & Tomorrow in Symonds Bay, Biorka Island, AK

TIDE TIMES for Saturday, July 11, 2026
The tide is currently falling in Symonds Bay, Biorka Island, AK.
Next low tide : in 44m at 4:16 pm (3.9 ft)
Next high tide : 10:28 pm (10.7 ft)
Sunset today : 9:49 pm
Sunrise tomorrow : 4:26 am
Moon phase : Waning Crescent (10% illuminated)
Tide Station Location : Station #9451468
Common Questions About Tides

Symonds Bay, Biorka Island, AK Tides - Jul 2069

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:097.05:360.15:123.64:159:57Waxing Gibbous1Mon
2Tue12:487.56:15-0.55:573.44:169:56Full Moon2Tue
3Wed1:257.96:52-1.06:393.14:179:56Full Moon3Wed
4Thu12:3810.12:008.37:28-1.57:202.84:189:55Full Moon4Thu
5Fri1:1710.22:358.68:04-1.78:012.54:199:54Full Moon5Fri
6Sat1:5610.23:108.98:39-1.88:432.24:209:53Waning Gibbous6Sat
7Sun2:3710.03:479.19:15-1.69:292.04:219:52Waning Gibbous7Sun
8Mon3:219.54:269.39:53-1.210:181.84:229:51Waning Gibbous8Mon
9Tue4:108.85:089.410:33-0.511:131.64:249:50Waning Gibbous9Tue
10Wed5:068.05:549.511:160.44:259:49Third Quarter10Wed
11Thu6:127.26:469.612:171.412:061.34:279:48Third Quarter11Thu
12Fri7:326.77:459.71:291.11:072.24:289:47Third Quarter12Fri
13Sat9:006.68:489.92:440.62:182.94:309:46Waning Crescent13Sat
14Sun10:226.99:5110.23:54-0.23:333.24:319:44Waning Crescent14Sun
15Mon11:287.510:5110.54:55-0.94:413.14:339:43Waning Crescent15Mon
16Tue12:228.25:48-1.55:402.84:349:41New Moon16Tue
17Wed1:088.76:36-2.06:332.44:369:40New Moon17Wed
18Thu12:3510.91:499.17:19-2.17:222.04:389:38New Moon18Thu
19Fri1:2110.72:289.38:00-2.08:071.84:399:37New Moon19Fri
20Sat2:0510.43:059.48:38-1.78:511.64:419:35Waxing Crescent20Sat
21Sun2:479.93:419.39:14-1.19:331.64:439:33Waxing Crescent21Sun
22Mon3:299.14:179.29:49-0.410:171.74:459:32Waxing Crescent22Mon
23Tue4:118.34:538.910:230.511:031.94:469:30Waxing Crescent23Tue
24Wed4:577.55:318.710:581.411:542.14:489:28First Quarter24Wed
25Thu5:506.76:138.411:352.34:509:26First Quarter25Thu
26Fri6:566.17:028.312:562.212:213.14:529:24First Quarter26Fri
27Sat8:195.87:598.22:072.21:213.84:549:23First Quarter27Sat
28Sun9:455.99:008.43:181.82:364.24:569:21Waxing Gibbous28Sun
29Mon10:536.49:598.84:181.23:474.14:589:19Waxing Gibbous29Mon
30Tue11:427.010:509.25:060.54:453.85:009:16Waxing Gibbous30Tue
31Wed12:217.65:48-0.25:353.35:029:14Waxing Gibbous31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9451468)

Common Questions About Symonds Bay, Biorka Island, AK Tides

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What time does the tide turn (slack tide) in Symonds Bay, Biorka Island, AK today?

Slack tide in Symonds Bay, Biorka Island, AK is approximately 7:22 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 Symonds Bay, Biorka Island, AK?

Symonds Bay, Biorka Island, AK is currently in a spring phase. Tonight's moon is 10% 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 Symonds Bay, Biorka Island, 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 Symonds Bay, Biorka Island, AK?

Tide predictions for Symonds Bay, Biorka Island, 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 Symonds Bay, Biorka Island, AK?

Tide data for Symonds Bay, Biorka Island, AK is sourced from NOAA Station #9451468. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9451468.

What is the moon phase in Symonds Bay, Biorka Island, AK tonight?

Tonight the moon over Symonds Bay, Biorka Island, AK is Waning Crescent (10% illuminated). This places Symonds Bay, Biorka Island, 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