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

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in Symonds Bay, Biorka Island, AK.
Next low tide (tomorrow) : 3:42 am (0.0 ft)
Next high tide : in 1h 13m at 8:25 pm (9.7 ft)
Sunset today : 9:51 pm
Sunrise tomorrow : 4:23 am
Moon phase : Waning Crescent (28% illuminated)
Tide Station Location : Station #9451468
Common Questions About Tides

Symonds Bay, Biorka Island, AK Tides - Nov 2066

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:489.312:2411.26:202.57:03-1.08:135:17Full Moon1Mon
2Tue1:309.312:5711.26:572.97:39-1.18:155:15Full Moon2Tue
3Wed2:099.31:3011.07:333.38:15-0.98:185:13Full Moon3Wed
4Thu2:489.12:0210.78:083.78:51-0.58:205:11Waning Gibbous4Thu
5Fri3:278.82:3610.28:444.19:28-0.18:225:08Waning Gibbous5Fri
6Sat4:088.43:129.69:224.510:080.58:245:06Waning Gibbous6Sat
7Sun3:548.02:529.09:044.89:521.17:264:04Waning Gibbous7Sun
8Mon4:467.73:408.39:575.010:411.67:294:02Third Quarter8Mon
9Tue5:437.64:447.611:095.111:372.17:314:00Third Quarter9Tue
10Wed6:417.86:047.112:354.77:333:58Third Quarter10Wed
11Thu7:338.27:277.012:382.41:513.97:353:56Third Quarter11Thu
12Fri8:168.88:417.31:362.72:472.97:373:54Waning Crescent12Fri
13Sat8:559.49:417.82:292.83:331.77:393:52Waning Crescent13Sat
14Sun9:3310.210:348.43:162.94:150.57:423:51Waning Crescent14Sun
15Mon10:1010.911:219.04:003.04:56-0.57:443:49Waning Crescent15Mon
16Tue10:4911.64:433.15:38-1.47:463:47New Moon16Tue
17Wed12:079.411:29 AM12.05:273.26:21-2.07:483:45New Moon17Wed
18Thu12:539.612:1212.36:113.37:05-2.27:503:44New Moon18Thu
19Fri1:409.712:5712.16:583.47:51-2.17:523:42Waxing Crescent19Fri
20Sat2:289.61:4411.77:473.58:40-1.77:543:41Waxing Crescent20Sat
21Sun3:209.42:3710.98:423.79:31-1.07:563:39Waxing Crescent21Sun
22Mon4:159.33:369.99:453.810:25-0.27:583:38First Quarter22Mon
23Tue5:149.24:468.810:593.811:230.88:003:36First Quarter23Tue
24Wed6:149.46:088.012:233.48:023:35First Quarter24Wed
25Thu7:129.67:357.512:261.71:432.68:043:33First Quarter25Thu
26Fri8:0610.08:577.61:302.42:501.68:063:32Waxing Gibbous26Fri
27Sat8:5410.310:047.92:313.03:440.78:083:31Waxing Gibbous27Sat
28Sun9:3810.610:598.33:253.44:300.08:093:30Waxing Gibbous28Sun
29Mon10:1810.811:458.74:133.75:11-0.58:113:29Full Moon29Mon
30Tue10:5610.94:573.95:49-0.78:133:28Full Moon30Tue
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 12:03 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 transitional phase. Tonight's moon is 28% 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 Waning Crescent (28% 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