Tides Today & Tomorrow in Tonki Bay, AK

TIDE TIMES for Monday, August 17, 2026
The tide is currently rising in Tonki Bay, AK.
Next low tide (tomorrow) : 12:36 am (1.0 ft)
Next high tide : in 4h 38m at 6:04 pm (10.9 ft)
Sunset today : 9:48 pm
Sunrise tomorrow : 6:35 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9457152
Common Questions About Tides

Tonki Bay, AK Tides - Oct 1929

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:0811.05:56-0.26:130.86:125:43New Moon1Tue
2Wed12:1211.512:4111.56:33-0.16:540.16:145:40New Moon2Wed
3Thu12:5711.41:1111.87:060.27:34-0.46:175:37New Moon3Thu
4Fri1:3911.01:4111.97:380.78:11-0.56:195:34Waxing Crescent4Fri
5Sat2:1910.62:1011.88:091.48:48-0.36:215:31Waxing Crescent5Sat
6Sun3:0010.02:4011.68:402.19:260.16:235:29Waxing Crescent6Sun
7Mon3:429.43:1211.29:122.910:070.76:255:26Waxing Crescent7Mon
8Tue4:288.73:4710.69:453.610:541.46:285:23First Quarter8Tue
9Wed5:248.14:3010.110:254.311:542.06:305:20First Quarter9Wed
10Thu6:517.85:299.511:214.86:325:17First Quarter10Thu
11Fri8:517.96:559.11:202.312:545.06:345:15First Quarter11Fri
12Sat9:528.38:289.22:522.22:534.66:375:12Waxing Gibbous12Sat
13Sun10:268.89:379.53:501.83:593.86:395:09Waxing Gibbous13Sun
14Mon10:539.410:309.94:311.44:442.96:415:06Waxing Gibbous14Mon
15Tue11:1810.011:1510.35:041.15:222.06:445:04Waxing Gibbous15Tue
16Wed11:4410.711:5610.55:350.95:571.06:465:01Full Moon16Wed
17Thu12:1011.36:060.86:330.26:484:58Full Moon17Thu
18Fri12:3710.712:3911.96:371.07:10-0.56:504:55Full Moon18Fri
19Sat1:1810.71:1012.47:091.37:48-0.96:534:53Full Moon19Sat
20Sun2:0010.51:4312.67:431.78:30-1.06:554:50Waning Gibbous20Sun
21Mon2:4510.12:2012.68:202.39:15-0.86:574:47Waning Gibbous21Mon
22Tue3:349.63:0212.38:592.910:06-0.47:004:45Waning Gibbous22Tue
23Wed4:329.13:5111.89:463.511:050.27:024:42Third Quarter23Wed
24Thu5:448.64:5211.110:454.17:044:40Third Quarter24Thu
25Fri7:158.56:1210.412:170.712:084.47:074:37Third Quarter25Fri
26Sat8:408.97:4710.01:411.01:584.17:094:35Third Quarter26Sat
27Sun9:389.69:1310.02:581.03:283.27:114:32Waning Crescent27Sun
28Mon10:2210.310:2010.23:560.84:302.17:144:29Waning Crescent28Mon
29Tue10:5911.011:1610.44:420.85:201.07:164:27Waning Crescent29Tue
30Wed11:3311.55:230.96:030.27:194:24New Moon30Wed
31Thu12:0510.512:0411.95:591.26:41-0.47:214:22New Moon31Thu
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 9:20 pm — 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 transitional phase. Tonight's moon is 28% 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 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 (28% illuminated). This places Tonki Bay, 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