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

TIDE TIMES for Friday, July 24, 2026
The tide is currently falling in Symonds Bay, Biorka Island, AK.
Next low tide : in 5h 33m at 4:08 am (1.0 ft)
Next high tide : 10:59 am (6.1 ft)
Sunset today : 9:31 pm
Sunrise tomorrow : 4:45 am
Moon phase : Waxing Gibbous (72% illuminated)
Tide Station Location : Station #9451468
Common Questions About Tides

Symonds Bay, Biorka Island, AK Tides - Nov 1973

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:427.62:348.48:485.09:401.76:123:18First Quarter1Thu
2Fri4:437.53:367.79:575.210:402.16:143:16First Quarter2Fri
3Sat5:467.64:567.211:264.911:442.46:173:14First Quarter3Sat
4Sun6:408.06:227.112:474.26:193:12First Quarter4Sun
5Mon7:258.57:357.412:442.51:453.26:213:09Waxing Gibbous5Mon
6Tue8:039.28:367.91:352.52:312.06:233:07Waxing Gibbous6Tue
7Wed8:3810.09:288.52:212.63:130.86:253:05Waxing Gibbous7Wed
8Thu9:1410.710:159.03:032.63:53-0.36:283:03Waxing Gibbous8Thu
9Fri9:5111.411:019.43:442.74:34-1.26:303:01Full Moon9Fri
10Sat10:2911.911:469.74:262.95:16-1.96:322:59Full Moon10Sat
11Sun11:1012.25:083.06:00-2.26:342:57Full Moon11Sun
12Mon12:329.711:53 AM12.15:533.26:46-2.16:362:55Waning Gibbous12Mon
13Tue1:219.612:4011.86:413.57:34-1.76:392:53Waning Gibbous13Tue
14Wed2:139.31:3111.07:343.78:26-1.16:412:51Waning Gibbous14Wed
15Thu3:109.12:2910.18:354.09:21-0.36:432:50Third Quarter15Thu
16Fri4:119.03:389.09:494.010:220.66:452:48Third Quarter16Fri
17Sat5:149.15:008.211:153.711:271.46:472:46Third Quarter17Sat
18Sun6:159.46:277.712:392.96:492:44Third Quarter18Sun
19Mon7:099.87:487.812:312.11:471.96:512:43Waning Crescent19Mon
20Tue7:5710.28:558.01:312.62:420.96:532:41Waning Crescent20Tue
21Wed8:4010.59:518.42:243.03:280.16:552:40Waning Crescent21Wed
22Thu9:1910.810:378.73:113.34:08-0.46:572:38New Moon22Thu
23Fri9:5510.911:188.93:543.64:46-0.76:592:37New Moon23Fri
24Sat10:3011.011:569.04:333.85:21-0.87:012:35New Moon24Sat
25Sun11:0410.95:104.05:56-0.87:032:34New Moon25Sun
26Mon12:339.011:38 AM10.75:474.16:31-0.67:052:33Waxing Crescent26Mon
27Tue1:098.912:1210.36:234.37:06-0.37:072:32Waxing Crescent27Tue
28Wed1:478.712:489.97:014.47:420.17:092:30Waxing Crescent28Wed
29Thu2:268.51:259.37:424.58:190.67:112:29Waxing Crescent29Thu
30Fri3:078.32:078.68:294.68:581.17:122:28Waxing Crescent30Fri
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 7:33 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 72% 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 Gibbous (72% 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