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

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Symonds Bay, Biorka Island, AK.
Next low tide (tomorrow) : in 36m at 9:39 pm (3.1 ft)
Next high tide : 3:24 am (8.8 ft)
Sunset today : 9:56 pm
Sunrise tomorrow : 4:16 am
Moon phase : Waning Gibbous (87% illuminated)
Tide Station Location : Station #9451468
Common Questions About Tides

Symonds Bay, Biorka Island, AK Tides - Apr 1997

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:588.67:547.41:070.95:296:41Third Quarter1Tue
2Wed7:248.69:008.11:233.92:210.65:276:43Waning Crescent2Wed
3Thu8:438.99:539.02:453.13:220.15:246:45Waning Crescent3Thu
4Fri9:519.510:399.83:481.94:15-0.35:216:48Waning Crescent4Fri
5Sat10:4910.011:2010.64:420.75:02-0.55:196:50New Moon5Sat
6Sun12:4110.36:31-0.46:46-0.56:167:52New Moon6Sun
7Mon1:0011.21:3010.47:17-1.27:28-0.26:137:54New Moon7Mon
8Tue1:4011.52:1710.38:01-1.78:100.36:117:56New Moon8Tue
9Wed2:1811.53:049.88:46-1.78:511.06:087:58Waxing Crescent9Wed
10Thu2:5811.13:529.29:30-1.49:331.96:058:00Waxing Crescent10Thu
11Fri3:3810.54:438.510:16-0.810:162.76:038:02Waxing Crescent11Fri
12Sat4:219.75:397.811:040.011:063.56:008:05First Quarter12Sat
13Sun5:098.86:457.312:000.85:578:07First Quarter13Sun
14Mon6:078.08:007.112:094.11:051.45:558:09First Quarter14Mon
15Tue7:217.49:127.21:334.42:181.75:528:11First Quarter15Tue
16Wed8:437.210:097.63:024.13:241.85:508:13Waxing Gibbous16Wed
17Thu9:557.310:518.04:083.44:181.65:478:15Waxing Gibbous17Thu
18Fri10:517.711:258.54:562.65:011.55:448:17Waxing Gibbous18Fri
19Sat11:378.111:569.05:361.85:381.35:428:19Waxing Gibbous19Sat
20Sun12:188.46:111.06:121.35:398:21Waxing Gibbous20Sun
21Mon12:259.512:558.76:440.36:441.35:378:24Full Moon21Mon
22Tue12:539.81:328.97:17-0.27:171.55:348:26Full Moon22Tue
23Wed1:2310.12:098.97:51-0.77:501.75:328:28Full Moon23Wed
24Thu1:5310.32:478.88:26-0.98:242.05:298:30Waning Gibbous24Thu
25Fri2:2510.33:288.69:04-1.09:002.45:278:32Waning Gibbous25Fri
26Sat3:0110.24:148.39:45-0.99:402.95:248:34Waning Gibbous26Sat
27Sun3:419.85:068.010:30-0.610:293.35:228:36Waning Gibbous27Sun
28Mon4:289.36:067.711:23-0.211:303.65:208:38Third Quarter28Mon
29Tue5:288.77:157.712:250.25:178:41Third Quarter29Tue
30Wed6:438.28:238.112:493.71:350.55:158:43Third Quarter30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9451468)

Common Questions About Symonds Bay, Biorka Island, AK Tides

Show All
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 12:31 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 87% 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 Gibbous (87% 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