Tides Today & Tomorrow in Tonki Bay, AK

TIDE TIMES for Monday, August 17, 2026
The tide is currently falling in Tonki Bay, AK.
Next low tide (tomorrow) : in 3h 03m at 11:50 pm (0.6 ft)
Next high tide : 5:47 am (9.7 ft)
Sunset today : 9:51 pm
Sunrise tomorrow : 6:33 am
Moon phase : Waxing Crescent (20% illuminated)
Tide Station Location : Station #9457152
Common Questions About Tides

Tonki Bay, AK Tides - Apr 1931

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:5711.45:570.46:19-0.75:366:47Full Moon1Wed
2Thu12:2811.512:4711.46:44-0.66:56-0.55:346:50Full Moon2Thu
3Fri1:0312.21:3511.17:29-1.47:33-0.15:316:52Full Moon3Fri
4Sat1:3812.62:2210.68:13-1.78:100.65:286:54Waning Gibbous4Sat
5Sun2:1412.63:1010.08:58-1.68:471.45:256:56Waning Gibbous5Sun
6Mon2:5212.34:009.29:44-1.09:252.35:226:59Waning Gibbous6Mon
7Tue3:3211.74:578.510:34-0.310:073.15:197:01Waning Gibbous7Tue
8Wed4:1711.06:087.911:320.610:583.95:167:03Third Quarter8Wed
9Thu5:1010.17:557.612:491.35:147:05Third Quarter9Thu
10Fri6:239.49:277.912:114.42:241.55:117:08Third Quarter10Fri
11Sat8:009.010:198.32:174.43:371.45:087:10Waning Crescent11Sat
12Sun9:249.110:548.83:473.84:271.25:057:12Waning Crescent12Sun
13Mon10:239.311:219.34:412.95:051.05:027:14Waning Crescent13Mon
14Tue11:109.511:449.85:222.15:350.95:007:17Waning Crescent14Tue
15Wed11:509.65:571.36:020.94:577:19Waning Crescent15Wed
16Thu12:0710.312:279.76:280.66:271.04:547:21New Moon16Thu
17Fri12:3010.71:029.76:580.06:531.34:517:23New Moon17Fri
18Sat12:5411.11:369.67:28-0.37:201.64:497:26New Moon18Sat
19Sun1:1911.42:129.48:00-0.57:482.04:467:28New Moon19Sun
20Mon1:4711.52:499.18:35-0.68:182.54:437:30Waxing Crescent20Mon
21Tue2:1711.53:308.79:13-0.48:502.94:417:33Waxing Crescent21Tue
22Wed2:5111.34:178.29:56-0.19:273.44:387:35Waxing Crescent22Wed
23Thu3:3311.05:177.810:480.210:153.84:357:37First Quarter23Thu
24Fri4:2510.66:377.611:500.511:254.14:337:39First Quarter24Fri
25Sat5:3210.08:047.91:040.74:307:42First Quarter25Sat
26Sun6:589.69:078.61:004.02:190.64:277:44First Quarter26Sun
27Mon8:299.59:539.42:393.23:220.44:257:46Waxing Gibbous27Mon
28Tue9:459.710:3410.43:542.04:130.34:227:48Waxing Gibbous28Tue
29Wed10:509.911:1211.34:530.74:590.34:207:51Waxing Gibbous29Wed
30Thu11:4710.111:4912.05:43-0.55:420.54:177:53Full Moon30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9457152)

Common Questions About Tonki Bay, AK Tides

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What time does the tide turn (slack tide) in Tonki Bay, AK today?

Slack tide in Tonki Bay, AK is approximately 2:48 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 Tonki Bay, AK?

Tonki Bay, AK is currently in a spring phase. Tonight's moon is 20% 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 Tonki Bay, 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 Tonki Bay, AK?

Tide predictions for Tonki Bay, 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 Tonki Bay, AK?

Tide data for Tonki Bay, AK is sourced from NOAA Station #9457152. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9457152.

What is the moon phase in Tonki Bay, AK tonight?

Tonight the moon over Tonki Bay, AK is Waxing Crescent (20% illuminated). This places Tonki Bay, 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