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

TIDE TIMES for Monday, August 3, 2026
The tide is currently rising in Symonds Bay, Biorka Island, AK.
Next low tide : 10:03 am (0.4 ft)
Next high tide : in 1h 58m at 3:53 am (8.4 ft)
Sunset today : 9:09 pm
Sunrise tomorrow : 5:06 am
Moon phase : Waning Gibbous (74% illuminated)
Tide Station Location : Station #9451468
Common Questions About Tides

Symonds Bay, Biorka Island, AK Tides - Feb 2097

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:3910.03:388.69:452.19:431.27:574:33Waning Gibbous1Fri
2Sat4:159.74:307.610:362.210:172.47:554:35Third Quarter2Sat
3Sun4:529.45:356.711:342.410:543.67:534:38Third Quarter3Sun
4Mon5:349.17:016.112:432.47:514:40Third Quarter4Mon
5Tue6:258.88:496.22:012.37:494:42Third Quarter5Tue
6Wed7:288.710:146.712:585.43:101.87:474:45Waning Crescent6Wed
7Thu8:358.811:037.32:315.64:051.37:444:47Waning Crescent7Thu
8Fri9:359.211:387.83:425.44:490.67:424:49Waning Crescent8Fri
9Sat10:259.64:344.95:260.07:404:51Waning Crescent9Sat
10Sun12:088.311:08 AM10.15:164.36:00-0.57:384:54New Moon10Sun
11Mon12:368.711:47 AM10.45:543.76:32-0.97:354:56New Moon11Mon
12Tue1:039.112:2410.66:303.17:03-1.17:334:58New Moon12Tue
13Wed1:319.51:0110.57:072.57:34-1.07:315:01New Moon13Wed
14Thu1:599.81:4010.27:452.08:04-0.67:285:03Waxing Crescent14Thu
15Fri2:2810.12:229.78:251.58:350.17:265:05Waxing Crescent15Fri
16Sat2:5910.33:088.99:091.29:081.07:235:07Waxing Crescent16Sat
17Sun3:3310.44:018.19:581.19:442.27:215:10First Quarter17Sun
18Mon4:1210.35:087.210:571.110:273.37:195:12First Quarter18Mon
19Tue5:0110.16:386.612:091.17:165:14First Quarter19Tue
20Wed6:039.98:266.71:340.97:145:16First Quarter20Wed
21Thu7:219.79:537.412:575.12:540.37:115:19Waxing Gibbous21Thu
22Fri8:429.910:508.12:395.03:59-0.47:095:21Waxing Gibbous22Fri
23Sat9:5310.411:338.93:564.44:52-1.07:065:23Waxing Gibbous23Sat
24Sun10:5110.84:553.55:38-1.47:045:25Full Moon24Sun
25Mon12:119.511:42 AM11.05:442.66:18-1.67:015:28Full Moon25Mon
26Tue12:4610.012:2711.06:291.86:55-1.46:585:30Full Moon26Tue
27Wed1:1810.31:1010.67:111.27:29-0.96:565:32Full Moon27Wed
28Thu1:4910.41:5210.07:510.88:01-0.16:535:34Waning Gibbous28Thu
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 6:58 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 74% 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 Gibbous (74% 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