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

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Symonds Bay, Biorka Island, AK.
Next low tide : in 3h 55m at 10:43 am (-1.6 ft)
Next high tide : 5:25 pm (8.9 ft)
Sunset today : 9:59 pm
Sunrise tomorrow : 4:08 am
Moon phase : Waxing Crescent (29% illuminated)
Tide Station Location : Station #9451468
Common Questions About Tides

Symonds Bay, Biorka Island, AK Tides - Mar 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:488.76:086.411:452.411:134.36:525:36Third Quarter1Tue
2Wed5:458.57:416.41:032.36:495:38Third Quarter2Wed
3Thu6:578.49:036.812:344.72:191.86:475:40Third Quarter3Thu
4Fri8:128.79:597.52:064.63:201.16:445:42Waning Crescent4Fri
5Sat9:189.310:428.43:184.04:100.26:415:44Waning Crescent5Sat
6Sun10:1410.011:209.24:133.14:53-0.56:395:47Waning Crescent6Sun
7Mon11:0410.611:5710.05:022.15:35-1.06:365:49New Moon7Mon
8Tue11:5211.05:471.16:14-1.36:335:51New Moon8Tue
9Wed12:3410.712:3811.26:320.26:54-1.26:315:53New Moon9Wed
10Thu1:1111.21:2511.07:17-0.47:34-0.86:285:55Waxing Crescent10Thu
11Fri1:5011.52:1410.58:04-0.88:15-0.16:255:57Waxing Crescent11Fri
12Sat2:3011.43:059.78:52-0.78:580.96:236:00Waxing Crescent12Sat
13Sun4:1411.15:028.810:45-0.410:442.07:207:02Waxing Crescent13Sun
14Mon5:0210.56:087.911:440.211:393.07:177:04First Quarter14Mon
15Tue5:589.87:287.412:530.77:147:06First Quarter15Tue
16Wed7:089.18:597.312:513.92:141.07:127:08First Quarter16Wed
17Thu8:288.710:167.72:244.23:311.07:097:10Waxing Gibbous17Thu
18Fri9:468.711:128.23:503.94:340.77:067:12Waxing Gibbous18Fri
19Sat10:508.911:558.74:543.35:240.57:047:15Waxing Gibbous19Sat
20Sun11:419.25:432.56:050.37:017:17Waxing Gibbous20Sun
21Mon12:299.212:249.46:241.96:400.26:587:19Full Moon21Mon
22Tue1:009.51:029.56:591.37:120.36:557:21Full Moon22Tue
23Wed1:289.71:389.57:330.87:420.56:537:23Full Moon23Wed
24Thu1:549.92:129.48:050.58:110.96:507:25Full Moon24Thu
25Fri2:219.92:469.18:370.48:391.36:477:27Waning Gibbous25Fri
26Sat2:489.83:218.79:090.49:081.96:457:29Waning Gibbous26Sat
27Sun3:169.73:588.29:430.59:382.56:427:32Waning Gibbous27Sun
28Mon3:459.44:407.710:210.810:113.16:397:34Waning Gibbous28Mon
29Tue4:199.05:317.211:051.210:503.76:367:36Third Quarter29Tue
30Wed5:018.66:376.811:591.511:454.36:347:38Third Quarter30Wed
31Thu5:578.27:576.71:081.66:317:40Third Quarter31Thu
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 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 transitional phase. Tonight's moon is 29% 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 shifting between spring and neap.

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 Waxing Crescent (29% illuminated). This places Symonds Bay, Biorka Island, AK in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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