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

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Symonds Bay, Biorka Island, AK.
Next low tide : 3:59 pm (3.9 ft)
Next high tide : in 3h 58m at 11:10 am (6.3 ft)
Sunset today : 9:59 pm
Sunrise tomorrow : 4:10 am
Moon phase : Waxing Gibbous (85% illuminated)
Tide Station Location : Station #9451468
Common Questions About Tides

Symonds Bay, Biorka Island, AK Tides - Aug 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:366.55:528.511:162.55:029:14First Quarter1Tue
2Wed6:435.96:358.512:402.111:53 AM3.45:049:12First Quarter2Wed
3Thu8:135.67:308.61:511.912:474.25:069:10First Quarter3Thu
4Fri9:535.88:368.83:071.52:084.85:089:07Waxing Gibbous4Fri
5Sat11:086.49:459.34:140.73:344.85:109:05Waxing Gibbous5Sat
6Sun11:587.110:479.95:09-0.24:444.45:129:03Waxing Gibbous6Sun
7Mon12:397.85:57-1.15:413.75:149:01Waxing Gibbous7Mon
8Tue1:168.56:41-1.96:322.85:168:59Full Moon8Tue
9Wed12:3311.01:529.17:22-2.47:212.05:188:56Full Moon9Wed
10Thu1:2111.22:289.78:02-2.58:091.25:208:54Full Moon10Thu
11Fri2:1011.03:0510.18:41-2.28:570.65:228:52Waning Gibbous11Fri
12Sat2:5910.43:4210.49:19-1.59:480.25:248:49Waning Gibbous12Sat
13Sun3:509.64:2110.59:58-0.410:410.15:268:47Waning Gibbous13Sun
14Mon4:468.55:0310.310:380.911:390.35:288:44Third Quarter14Mon
15Tue5:507.45:5110.011:222.35:308:42Third Quarter15Tue
16Wed7:096.66:469.512:460.512:153.65:328:39Third Quarter16Wed
17Thu8:496.37:559.12:050.71:304.55:348:37Third Quarter17Thu
18Fri10:266.79:129.03:260.63:074.95:368:35Waning Crescent18Fri
19Sat11:327.210:229.14:350.34:284.65:388:32Waning Crescent19Sat
20Sun12:177.75:29-0.15:264.15:408:29Waning Crescent20Sun
21Mon12:518.16:13-0.46:123.45:428:27New Moon21Mon
22Tue12:059.61:218.46:49-0.66:502.85:448:24New Moon22Tue
23Wed12:459.81:478.77:21-0.77:242.35:468:22New Moon23Wed
24Thu1:219.72:128.97:50-0.67:581.85:488:19New Moon24Thu
25Fri1:559.62:369.18:17-0.38:301.55:518:17New Moon25Fri
26Sat2:299.23:009.28:430.29:031.35:538:14Waxing Crescent26Sat
27Sun3:048.83:249.39:080.89:371.25:558:11Waxing Crescent27Sun
28Mon3:408.23:499.29:341.610:131.35:578:09Waxing Crescent28Mon
29Tue4:207.64:179.110:002.510:551.55:598:06Waxing Crescent29Tue
30Wed5:076.94:508.910:283.311:471.76:018:04First Quarter30Wed
31Thu6:116.35:348.711:044.26:038:01First 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 1:34 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 85% 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 Waxing Gibbous (85% 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