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 : 4:16 pm (3.9 ft)
Next high tide : in 2h 06m at 11:27 am (7.0 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 - Oct 1984

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:397.55:499.011:434.67:066:36First Quarter1Mon
2Tue8:107.37:088.31:071.11:135.27:086:33First Quarter2Tue
3Wed9:377.58:398.12:311.42:595.07:116:30First Quarter3Wed
4Thu10:378.09:568.33:451.34:144.37:136:28Waxing Gibbous4Thu
5Fri11:198.410:548.64:401.15:043.57:156:25Waxing Gibbous5Fri
6Sat11:518.811:398.95:220.95:432.77:176:22Waxing Gibbous6Sat
7Sun12:189.25:570.86:161.97:196:20Waxing Gibbous7Sun
8Mon12:189.212:439.66:270.96:481.27:216:17Full Moon8Mon
9Tue12:539.31:069.96:551.17:180.77:236:14Full Moon9Tue
10Wed1:279.31:3010.17:221.47:480.37:256:12Full Moon10Wed
11Thu2:019.21:5410.27:491.88:190.17:276:09Full Moon11Thu
12Fri2:369.02:1910.28:172.48:520.07:296:06Waning Gibbous12Fri
13Sat3:128.72:4510.18:453.19:270.27:326:04Waning Gibbous13Sat
14Sun3:538.33:159.99:143.710:070.57:346:01Waning Gibbous14Sun
15Mon4:407.83:509.59:484.410:550.97:365:59Waning Gibbous15Mon
16Tue5:417.34:379.010:325.011:571.27:385:56Third Quarter16Tue
17Wed7:017.05:468.611:425.47:405:54Third Quarter17Wed
18Thu8:287.37:188.31:151.41:305.47:425:51Third Quarter18Thu
19Fri9:347.98:508.52:341.23:064.57:445:48Waning Crescent19Fri
20Sat10:228.710:049.13:390.74:123.27:475:46Waning Crescent20Sat
21Sun11:029.711:069.74:320.45:051.77:495:43Waning Crescent21Sun
22Mon11:4010.65:180.25:520.37:515:41Waning Crescent22Mon
23Tue12:0110.212:1611.46:010.26:37-0.97:535:39New Moon23Tue
24Wed12:5210.512:5312.06:430.67:22-1.87:555:36New Moon24Wed
25Thu1:4110.51:3012.27:241.28:06-2.17:585:34New Moon25Thu
26Fri2:3010.32:0812.18:051.98:51-2.08:005:31Waxing Crescent26Fri
27Sat3:209.82:4811.68:482.89:38-1.58:025:29Waxing Crescent27Sat
28Sun3:139.22:3010.88:323.79:27-0.77:044:27Waxing Crescent28Sun
29Mon4:128.53:179.89:234.510:230.37:064:24First Quarter29Mon
30Tue5:218.04:158.810:275.111:291.27:094:22First Quarter30Tue
31Wed6:397.85:338.011:575.47:114:20First Quarter31Wed
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 1:51 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