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

TIDE TIMES for Friday, July 10, 2026
The tide is currently rising in Symonds Bay, Biorka Island, AK.
Next low tide (tomorrow) : 4:45 am (-1.0 ft)
Next high tide : in 2h 51m at 9:26 pm (10.2 ft)
Sunset today : 9:50 pm
Sunrise tomorrow : 4:24 am
Moon phase : Waning Crescent (18% illuminated)
Tide Station Location : Station #9451468
Common Questions About Tides

Symonds Bay, Biorka Island, AK Tides - Nov 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:348.41:4010.07:474.38:360.37:124:18Waning Gibbous1Fri
2Sat3:168.02:129.68:204.89:180.77:154:16Waning Gibbous2Sat
3Sun4:087.62:519.18:595.210:081.27:174:14Waning Gibbous3Sun
4Mon5:137.33:448.59:545.611:101.57:194:11Third Quarter4Mon
5Tue6:287.35:018.011:215.77:214:09Third Quarter5Tue
6Wed7:347.76:357.812:221.61:065.17:234:07Third Quarter6Wed
7Thu8:248.48:008.01:301.62:214.07:264:05Waning Crescent7Thu
8Fri9:059.29:118.52:271.43:172.57:284:03Waning Crescent8Fri
9Sat9:4210.210:119.13:171.34:051.07:304:01Waning Crescent9Sat
10Sun10:1911.111:059.64:021.44:50-0.57:323:59Waning Crescent10Sun
11Mon10:5711.911:5610.04:461.65:34-1.67:343:57New Moon11Mon
12Tue11:3512.45:292.06:19-2.47:373:55New Moon12Tue
13Wed12:4610.112:1612.66:132.57:05-2.67:393:53New Moon13Wed
14Thu1:3610.012:5812.56:583.07:52-2.47:413:51Waxing Crescent14Thu
15Fri2:289.71:4311.97:453.68:41-1.87:433:49Waxing Crescent15Fri
16Sat3:249.22:3111.08:374.29:34-0.97:453:48Waxing Crescent16Sat
17Sun4:258.83:279.99:364.710:330.07:473:46First Quarter17Sun
18Mon5:328.54:348.810:524.911:380.97:493:44First Quarter18Mon
19Tue6:418.55:578.012:244.87:513:43First Quarter19Tue
20Wed7:448.77:257.512:461.51:524.17:543:41First Quarter20Wed
21Thu8:359.08:437.51:502.02:573.17:563:40Waxing Gibbous21Thu
22Fri9:169.49:467.72:442.33:462.17:583:38Waxing Gibbous22Fri
23Sat9:509.810:378.03:292.74:251.38:003:37Waxing Gibbous23Sat
24Sun10:2010.111:218.34:083.05:000.68:023:35Waxing Gibbous24Sun
25Mon10:4910.411:598.54:433.35:320.08:033:34Full Moon25Mon
26Tue11:1710.65:173.76:04-0.38:053:33Full Moon26Tue
27Wed12:368.711:46 AM10.75:503.96:36-0.58:073:32Full Moon27Wed
28Thu1:128.812:1610.76:234.27:10-0.68:093:30Full Moon28Thu
29Fri1:488.712:4810.56:574.57:45-0.48:113:29Waning Gibbous29Fri
30Sat2:268.61:2110.37:324.78:22-0.28:133:28Waning Gibbous30Sat
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 1:05 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 spring phase. Tonight's moon is 18% 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 Waning Crescent (18% 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