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

TIDE TIMES for Thursday, July 30, 2026
The tide is currently rising in Symonds Bay, Biorka Island, AK.
Next low tide : 8:05 am (-1.3 ft)
Next high tide : in 2h 54m at 1:20 am (9.8 ft)
Sunset today : 9:20 pm
Sunrise tomorrow : 4:56 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9451468
Common Questions About Tides

Symonds Bay, Biorka Island, AK Tides - Jan 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:069.52:319.68:443.59:08-0.17:392:32Third Quarter1Sun
2Mon3:529.73:368.59:503.29:550.97:382:33Third Quarter2Mon
3Tue4:429.94:537.611:052.710:492.07:382:34Third Quarter3Tue
4Wed5:3410.16:227.112:231.97:372:36Third Quarter4Wed
5Thu6:2810.47:537.21:341.07:372:37Waning Crescent5Thu
6Fri7:2410.69:107.712:583.92:360.27:362:39Waning Crescent6Fri
7Sat8:1810.910:118.22:064.43:29-0.67:362:40Waning Crescent7Sat
8Sun9:1111.111:018.73:084.54:17-1.07:352:42New Moon8Sun
9Mon10:0011.211:439.14:024.55:01-1.37:342:43New Moon9Mon
10Tue10:4511.24:514.35:42-1.47:332:45New Moon10Tue
11Wed12:229.211:27 AM11.15:364.16:20-1.27:322:47New Moon11Wed
12Thu12:589.312:0710.76:173.96:56-0.97:312:49Waxing Crescent12Thu
13Fri1:339.212:4610.26:583.77:30-0.57:302:50Waxing Crescent13Fri
14Sat2:079.21:249.57:393.68:030.17:292:52Waxing Crescent14Sat
15Sun2:419.12:058.78:213.68:340.97:282:54Waxing Crescent15Sun
16Mon3:149.02:497.99:083.59:061.77:272:56First Quarter16Mon
17Tue3:498.93:427.110:013.49:392.77:252:58First Quarter17Tue
18Wed4:278.94:516.411:053.210:193.67:243:00First Quarter18Wed
19Thu5:098.96:216.112:162.87:233:02First Quarter19Thu
20Fri5:599.08:006.31:252.27:213:04Waxing Gibbous20Fri
21Sat6:559.39:146.912:255.12:241.47:203:06Waxing Gibbous21Sat
22Sun7:529.710:057.51:415.33:140.57:183:08Waxing Gibbous22Sun
23Mon8:4710.310:468.22:465.23:59-0.37:173:10Waxing Gibbous23Mon
24Tue9:3710.911:238.73:404.84:41-1.17:153:12Full Moon24Tue
25Wed10:2511.411:599.34:284.25:22-1.87:133:15Full Moon25Wed
26Thu11:1111.75:143.66:02-2.17:123:17Full Moon26Thu
27Fri12:359.711:57 AM11.76:013.06:41-2.17:103:19Full Moon27Fri
28Sat1:1210.112:4311.36:482.47:19-1.77:083:21Waning Gibbous28Sat
29Sun1:4910.31:3210.57:371.97:58-0.97:063:23Waning Gibbous29Sun
30Mon2:2810.52:259.58:301.78:380.27:043:26Waning Gibbous30Mon
31Tue3:0910.63:268.49:281.59:201.57:023:28Third Quarter31Tue
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 4:42 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 100% 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 Full Moon (100% 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