Tides Today & Tomorrow in Tonki Bay, AK

TIDE TIMES for Thursday, August 20, 2026
The tide is currently falling in Tonki Bay, AK.
Next low tide : in 2h 40m at 2:31 am (1.9 ft)
Next high tide : 8:40 am (7.3 ft)
Sunset today : 9:43 pm
Sunrise tomorrow : 6:40 am
Moon phase : First Quarter (47% illuminated)
Tide Station Location : Station #9457152
Common Questions About Tides

Tonki Bay, AK Tides - Sep 1924

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:5211.42:2411.08:15-0.38:320.55:077:08Waxing Crescent1Mon
2Tue2:3311.12:5911.28:500.09:160.45:107:05Waxing Crescent2Tue
3Wed3:1710.53:3711.39:270.610:040.55:127:02Waxing Crescent3Wed
4Thu4:069.84:2011.210:081.310:590.85:146:59First Quarter4Thu
5Fri5:049.15:1111.010:552.15:166:57First Quarter5Fri
6Sat6:178.46:1410.812:051.011:53 AM2.95:186:54First Quarter6Sat
7Sun7:518.27:3110.71:251.11:093.35:206:51First Quarter7Sun
8Mon9:228.58:5110.82:520.92:373.35:236:48Waxing Gibbous8Mon
9Tue10:299.110:0111.24:040.43:562.95:256:45Waxing Gibbous9Tue
10Wed11:209.811:0011.65:000.04:592.25:276:42Waxing Gibbous10Wed
11Thu12:0210.45:47-0.45:511.55:296:39Full Moon11Thu
12Fri12:3910.96:28-0.56:360.95:316:37Full Moon12Fri
13Sat12:3711.81:1411.27:05-0.57:170.55:336:34Full Moon13Sat
14Sun1:1911.61:4611.37:39-0.27:560.35:366:31Full Moon14Sun
15Mon1:5911.22:1811.38:120.38:330.35:386:28Waning Gibbous15Mon
16Tue2:3810.72:4911.18:430.99:110.55:406:25Waning Gibbous16Tue
17Wed3:1610.13:2110.99:151.59:500.95:426:22Waning Gibbous17Wed
18Thu3:579.43:5510.59:492.310:331.45:446:19Waning Gibbous18Thu
19Fri4:428.74:3310.110:263.011:231.95:466:16Third Quarter19Fri
20Sat5:388.15:219.711:103.65:496:14Third Quarter20Sat
21Sun6:597.86:259.412:262.312:114.15:516:11Third Quarter21Sun
22Mon8:437.87:459.31:512.41:374.35:536:08Third Quarter22Mon
23Tue9:528.39:019.63:132.13:064.05:556:05Waning Crescent23Tue
24Wed10:358.810:0010.04:091.64:083.45:576:02Waning Crescent24Wed
25Thu11:099.410:5010.54:511.14:552.65:595:59Waning Crescent25Thu
26Fri11:4010.011:3411.05:270.75:361.86:025:56Waning Crescent26Fri
27Sat12:1110.76:010.36:151.06:045:54New Moon27Sat
28Sun12:1611.312:4211.36:350.16:540.36:065:51New Moon28Sun
29Mon12:5711.41:1511.77:100.17:34-0.36:085:48New Moon29Mon
30Tue1:3911.31:4912.17:450.48:15-0.66:105:45Waxing Crescent30Tue
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 5:35 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 neap phase. Tonight's moon is 47% 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 minimum.

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 First Quarter (47% illuminated). This places Tonki Bay, AK in a neap tide cycle, so tidal ranges are near their weekly minimum 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