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

TIDE TIMES for Thursday, August 6, 2026
The tide is currently falling in Symonds Bay, Biorka Island, AK.
Next low tide : in 4h 53m at 12:05 pm (3.4 ft)
Next high tide : 6:45 pm (9.6 ft)
Sunset today : 9:03 pm
Sunrise tomorrow : 5:12 am
Moon phase : Third Quarter (42% illuminated)
Tide Station Location : Station #9451468
Common Questions About Tides

Symonds Bay, Biorka Island, AK Tides - Jul 1953

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:499.53:029.38:25-1.58:551.92:137:57Waning Gibbous1Wed
2Thu2:458.63:479.59:08-0.59:581.62:147:57Third Quarter2Thu
3Fri3:507.64:359.69:540.611:091.22:157:56Third Quarter3Fri
4Sat5:066.75:279.710:461.82:167:56Third Quarter4Sat
5Sun6:336.36:239.812:240.711:48 AM2.82:177:55Waning Crescent5Sun
6Mon8:036.47:229.91:350.112:593.62:187:54Waning Crescent6Mon
7Tue9:186.98:2110.02:38-0.62:103.92:207:53Waning Crescent7Tue
8Wed10:177.49:1610.23:33-1.13:133.92:217:52Waning Crescent8Wed
9Thu11:047.810:0610.34:21-1.54:083.72:227:51New Moon9Thu
10Fri11:448.210:5110.35:04-1.74:563.42:237:50New Moon10Fri
11Sat12:208.45:44-1.85:393.12:257:49New Moon11Sat
12Sun12:548.56:20-1.66:202.82:267:48New Moon12Sun
13Mon12:129.81:278.56:54-1.47:002.62:287:47Waxing Crescent13Mon
14Tue12:509.31:588.57:26-0.97:392.52:297:45Waxing Crescent14Tue
15Wed1:288.72:298.57:56-0.38:202.42:317:44Waxing Crescent15Wed
16Thu2:087.93:008.58:260.59:052.42:327:43Waxing Crescent16Thu
17Fri2:527.23:338.48:561.49:552.32:347:41First Quarter17Fri
18Sat3:446.44:108.49:292.310:552.32:367:40First Quarter18Sat
19Sun4:515.84:538.410:083.22:377:38First Quarter19Sun
20Mon6:185.55:468.512:052.011:02 AM3.92:397:37First Quarter20Mon
21Tue7:525.76:468.81:171.512:164.42:417:35Waxing Gibbous21Tue
22Wed9:066.27:489.22:190.71:354.62:437:33Waxing Gibbous22Wed
23Thu9:576.98:469.83:11-0.12:414.32:447:32Waxing Gibbous23Thu
24Fri10:387.59:3910.43:57-1.03:373.72:467:30Full Moon24Fri
25Sat11:168.210:2810.84:40-1.84:283.12:487:28Full Moon25Sat
26Sun11:528.811:1611.05:21-2.35:162.32:507:26Full Moon26Sun
27Mon12:299.46:00-2.56:041.62:527:24Full Moon27Mon
28Tue12:0310.91:069.86:39-2.46:521.02:547:22Waning Gibbous28Tue
29Wed12:5110.41:4410.27:18-1.87:430.62:567:20Waning Gibbous29Wed
30Thu1:429.62:2310.37:57-0.98:360.42:577:18Waning Gibbous30Thu
31Fri2:378.63:0610.38:370.39:350.42:597:16Third Quarter31Fri
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 3:25 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 neap phase. Tonight's moon is 42% 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 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 Third Quarter (42% illuminated). This places Symonds Bay, Biorka Island, 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