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

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in Symonds Bay, Biorka Island, AK.
Next low tide (tomorrow) : 5:41 am (-1.8 ft)
Next high tide : in 4h 02m at 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 - Sep 2069

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:4710.51:2510.27:08-0.97:240.36:067:56Full Moon1Sun
2Mon1:3110.72:0110.77:45-0.88:08-0.46:087:54Full Moon2Mon
3Tue2:1610.52:3711.08:23-0.48:53-0.76:107:51Waning Gibbous3Tue
4Wed3:0310.13:1711.19:030.29:41-0.76:127:48Waning Gibbous4Wed
5Thu3:549.44:0010.99:441.110:33-0.46:157:45Waning Gibbous5Thu
6Fri4:508.64:4810.410:302.111:320.16:177:43Third Quarter6Fri
7Sat5:567.85:469.811:253.06:197:40Third Quarter7Sat
8Sun7:177.36:569.312:420.612:373.86:217:37Third Quarter8Sun
9Mon8:457.38:179.02:020.82:094.06:237:35Waning Crescent9Mon
10Tue10:017.79:359.03:200.73:353.76:257:32Waning Crescent10Tue
11Wed10:588.310:419.34:230.54:413.06:277:29Waning Crescent11Wed
12Thu11:428.911:349.65:140.25:322.26:297:26Waning Crescent12Thu
13Fri12:199.35:570.16:151.56:317:24New Moon13Fri
14Sat12:199.812:519.76:340.16:530.96:337:21New Moon14Sat
15Sun12:599.81:219.97:070.37:280.56:357:18New Moon15Sun
16Mon1:379.71:4910.07:390.68:020.36:377:16New Moon16Mon
17Tue2:129.52:1710.08:091.18:350.36:397:13Waxing Crescent17Tue
18Wed2:489.22:459.98:381.79:090.46:417:10Waxing Crescent18Wed
19Thu3:248.73:149.69:082.39:450.76:437:07Waxing Crescent19Thu
20Fri4:038.23:459.39:392.910:241.16:457:05Waxing Crescent20Fri
21Sat4:477.64:218.910:143.611:101.66:477:02First Quarter21Sat
22Sun5:427.05:068.410:564.26:496:59First Quarter22Sun
23Mon6:536.76:088.012:092.011:56 AM4.76:516:56First Quarter23Mon
24Tue8:166.77:287.81:232.21:264.86:536:54First Quarter24Tue
25Wed9:267.28:508.12:391.92:554.46:556:51Waxing Gibbous25Wed
26Thu10:177.99:588.63:411.54:013.56:576:48Waxing Gibbous26Thu
27Fri10:588.710:559.34:310.94:522.36:596:45Waxing Gibbous27Fri
28Sat11:359.611:459.95:150.55:371.17:016:43Waxing Gibbous28Sat
29Sun12:1110.45:560.26:210.07:036:40Full Moon29Sun
30Mon12:3310.412:4811.26:360.17:05-0.97:056:37Full Moon30Mon
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 2:04 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 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