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

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in Symonds Bay, Biorka Island, AK.
Next low tide : in 1h 39m at 2:33 am (0.9 ft)
Next high tide : 8:46 am (6.1 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 - Aug 2065

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:149.81:368.27:03-1.26:572.95:049:12New Moon1Sat
2Sun12:5410.12:058.77:36-1.57:362.35:059:10New Moon2Sun
3Mon1:3310.22:349.18:09-1.68:161.75:079:08New Moon3Mon
4Tue2:1310.03:059.58:41-1.38:581.25:099:06Waxing Crescent4Tue
5Wed2:569.63:379.99:14-0.89:420.85:119:04Waxing Crescent5Wed
6Thu3:419.04:1210.09:480.010:310.65:139:01Waxing Crescent6Thu
7Fri4:338.24:5110.110:251.011:260.65:158:59First Quarter7Fri
8Sat5:337.35:3710.011:072.15:188:57First Quarter8Sat
9Sun6:496.66:339.812:320.711:58 AM3.25:208:55First Quarter9Sun
10Mon8:236.37:439.61:510.61:114.15:228:52First Quarter10Mon
11Tue9:596.69:009.63:120.32:444.45:248:50Waxing Gibbous11Tue
12Wed11:097.310:149.94:23-0.34:094.15:268:47Waxing Gibbous12Wed
13Thu12:018.05:21-0.95:153.45:288:45Waxing Gibbous13Thu
14Fri12:428.66:09-1.46:092.65:308:43Full Moon14Fri
15Sat12:0910.51:199.26:51-1.66:561.95:328:40Full Moon15Sat
16Sun12:5610.51:539.57:29-1.57:391.35:348:38Full Moon16Sun
17Mon1:4010.32:259.88:04-1.28:190.95:368:35Full Moon17Mon
18Tue2:219.92:559.88:37-0.68:580.75:388:33Waning Gibbous18Tue
19Wed3:019.33:259.79:080.29:370.75:408:30Waning Gibbous19Wed
20Thu3:418.63:559.59:381.210:160.95:428:28Waning Gibbous20Thu
21Fri4:237.84:269.210:072.110:591.35:448:25Waning Gibbous21Fri
22Sat5:107.05:008.810:373.111:501.75:468:23Third Quarter22Sat
23Sun6:096.35:438.411:124.05:488:20Third Quarter23Sun
24Mon7:345.86:428.112:572.112:024.75:508:17Third Quarter24Mon
25Tue9:235.97:598.02:202.11:345.25:528:15Third Quarter25Tue
26Wed10:416.49:178.23:381.73:185.05:548:12Waning Crescent26Wed
27Thu11:257.010:208.74:351.14:264.55:568:10Waning Crescent27Thu
28Fri11:577.611:119.35:180.45:153.75:588:07Waning Crescent28Fri
29Sat12:268.35:55-0.25:572.86:008:04Waning Crescent29Sat
30Sun12:548.96:29-0.76:361.86:028:02New Moon30Sun
31Mon12:3810.11:229.67:02-0.97:160.96:047:59New Moon31Mon
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 5:39 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