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

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Symonds Bay, Biorka Island, AK.
Next low tide : in 4h 17m at 11:14 pm (2.6 ft)
Next high tide (tomorrow) : 4:57 am (7.5 ft)
Sunset today : 9:55 pm
Sunrise tomorrow : 4:18 am
Moon phase : Waning Gibbous (70% illuminated)
Tide Station Location : Station #9451468
Common Questions About Tides

Symonds Bay, Biorka Island, AK Tides - Jan 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:499.92:2210.38:302.88:54-0.68:383:32Waning Gibbous1Sat
2Sun3:2910.13:129.59:212.79:350.18:383:34Waning Gibbous2Sun
3Mon4:1210.24:108.610:192.510:191.18:383:35Third Quarter3Mon
4Tue4:5910.25:207.811:262.311:112.28:373:36Third Quarter4Tue
5Wed5:5310.36:457.212:421.98:373:38Third Quarter5Wed
6Thu6:5310.48:177.212:143.11:591.28:363:39Waning Crescent6Thu
7Fri7:5710.69:387.71:283.83:080.48:353:41Waning Crescent7Fri
8Sat8:5910.910:418.32:434.14:06-0.48:343:42Waning Crescent8Sat
9Sun9:5711.211:329.03:504.04:57-1.08:343:44Waning Crescent9Sun
10Mon10:5011.44:483.75:42-1.48:333:46New Moon10Mon
11Tue12:169.511:38 AM11.55:393.36:24-1.68:323:48New Moon11Tue
12Wed12:569.812:2211.36:262.97:03-1.58:313:49New Moon12Wed
13Thu1:3410.01:0411.07:092.77:40-1.18:303:51Waxing Crescent13Thu
14Fri2:0910.11:4410.47:512.68:14-0.68:293:53Waxing Crescent14Fri
15Sat2:4410.02:249.78:332.58:470.28:273:55Waxing Crescent15Sat
16Sun3:189.83:058.89:152.69:191.08:263:57Waxing Crescent16Sun
17Mon3:539.63:498.010:002.89:522.08:253:59First Quarter17Mon
18Tue4:299.44:417.110:522.910:272.98:234:01First Quarter18Tue
19Wed5:109.15:486.511:543.011:103.88:224:03First Quarter19Wed
20Thu5:589.07:176.11:072.88:214:05First Quarter20Thu
21Fri6:558.98:526.312:094.52:202.48:194:07First Quarter21Fri
22Sat7:579.110:026.91:285.03:201.78:174:09Waxing Gibbous22Sat
23Sun8:579.510:507.52:455.04:080.98:164:11Waxing Gibbous23Sun
24Mon9:4910.011:278.23:474.64:500.18:144:13Waxing Gibbous24Mon
25Tue10:3610.54:374.15:28-0.68:124:16Full Moon25Tue
26Wed12:028.811:20 AM10.95:223.56:05-1.18:114:18Full Moon26Wed
27Thu12:359.412:0311.26:052.86:41-1.58:094:20Full Moon27Thu
28Fri1:0810.012:4611.36:482.27:17-1.58:074:22Full Moon28Fri
29Sat1:4310.41:2911.07:311.67:54-1.28:054:24Waning Gibbous29Sat
30Sun2:1910.82:1510.48:171.38:31-0.58:034:27Waning Gibbous30Sun
31Mon2:5610.93:059.69:061.19:100.48:014:29Waning Gibbous31Mon
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 2:05 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 transitional phase. Tonight's moon is 70% 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 (70% 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