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

TIDE TIMES for Thursday, August 6, 2026
The tide is currently rising in Symonds Bay, Biorka Island, AK.
Next low tide : 12:05 pm (3.4 ft)
Next high tide : in 5h 19m at 7:00 am (6.3 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 - Feb 1954

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:2610.511:018.73:284.44:25-0.87:003:30Waning Crescent1Mon
2Tue10:1311.011:339.44:163.65:02-1.46:583:33New Moon2Tue
3Wed10:5811.35:002.85:38-1.76:563:35New Moon3Wed
4Thu12:0510.011:43 AM11.35:442.06:14-1.66:543:37New Moon4Thu
5Fri12:3910.612:2811.06:291.36:50-1.26:523:40Waxing Crescent5Fri
6Sat1:1311.01:1510.47:150.87:26-0.46:503:42Waxing Crescent6Sat
7Sun1:5011.22:059.58:040.58:040.66:483:44Waxing Crescent7Sun
8Mon2:2911.23:028.58:570.68:451.96:453:46First Quarter8Mon
9Tue3:1310.94:107.59:580.89:313.16:433:49First Quarter9Tue
10Wed4:0510.55:376.811:111.010:334.36:413:51First Quarter10Wed
11Thu5:0910.07:226.812:351.06:393:53First Quarter11Thu
12Fri6:259.78:497.312:035.01:540.76:363:55Waxing Gibbous12Fri
13Sat7:449.79:468.01:415.02:580.26:343:58Waxing Gibbous13Sat
14Sun8:519.910:288.62:554.43:48-0.36:324:00Waxing Gibbous14Sun
15Mon9:4510.211:029.13:503.74:29-0.66:294:02Full Moon15Mon
16Tue10:3010.311:339.54:353.05:05-0.76:274:05Full Moon16Tue
17Wed11:1110.35:142.45:37-0.66:254:07Full Moon17Wed
18Thu12:019.811:48 AM10.15:501.86:07-0.36:224:09Full Moon18Thu
19Fri12:289.912:239.86:251.56:350.26:204:11Waning Gibbous19Fri
20Sat12:5310.012:589.36:581.37:010.86:174:14Waning Gibbous20Sat
21Sun1:1910.01:348.77:321.27:281.66:154:16Waning Gibbous21Sun
22Mon1:459.92:128.08:081.47:542.46:124:18Waning Gibbous22Mon
23Tue2:139.72:547.38:471.68:213.26:104:20Waning Gibbous23Tue
24Wed2:449.43:486.69:352.08:524.06:074:23Third Quarter24Wed
25Thu3:249.05:076.110:372.39:354.86:054:25Third Quarter25Thu
26Fri4:188.76:576.012:002.26:024:27Third Quarter26Fri
27Sat5:338.58:256.51:221.86:004:29Third Quarter27Sat
28Sun6:588.79:147.312:505.32:241.05:574:31Waning Crescent28Sun
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 9:32 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 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