Tides Today & Tomorrow in Tonki Bay, AK

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Tonki Bay, AK.
Next low tide (tomorrow) : 5:33 am (1.9 ft)
Next high tide : in 3h 46m at 9:20 pm (9.7 ft)
Sunset today : 9:37 pm
Sunrise tomorrow : 6:44 am
Moon phase : First Quarter (66% illuminated)
Tide Station Location : Station #9457152
Common Questions About Tides

Tonki Bay, AK Tides - Jul 1920

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:2711.31:489.17:28-0.67:062.63:079:16Full Moon1Thu
2Fri1:0311.32:199.37:58-0.77:422.53:089:16Full Moon2Fri
3Sat1:3711.22:509.48:28-0.78:192.43:099:15Waning Gibbous3Sat
4Sun2:1210.93:229.58:59-0.58:582.33:109:14Waning Gibbous4Sun
5Mon2:4810.53:549.69:31-0.39:402.33:119:13Waning Gibbous5Mon
6Tue3:279.94:299.710:050.110:272.23:129:12Waning Gibbous6Tue
7Wed4:119.35:089.810:420.611:212.13:149:11Third Quarter7Wed
8Thu5:048.75:5310.111:241.23:159:10Third Quarter8Thu
9Fri6:098.16:4610.312:252.012:131.83:179:09Third Quarter9Fri
10Sat7:317.77:4610.71:391.61:142.33:189:08Third Quarter10Sat
11Sun9:027.78:4911.32:551.02:232.63:199:07Waning Crescent11Sun
12Mon10:218.29:5111.84:040.23:322.73:219:05Waning Crescent12Mon
13Tue11:248.810:4912.45:03-0.74:372.43:239:04Waning Crescent13Tue
14Wed12:179.45:56-1.45:382.03:249:03New Moon14Wed
15Thu1:0410.06:44-1.96:331.63:269:01New Moon15Thu
16Fri12:3712.91:4810.57:29-2.17:251.23:289:00New Moon16Fri
17Sat1:2612.72:3110.88:11-2.08:150.93:308:58Waxing Crescent17Sat
18Sun2:1512.23:1310.98:53-1.69:060.93:318:56Waxing Crescent18Sun
19Mon3:0311.53:5510.99:33-1.09:571.03:338:55Waxing Crescent19Mon
20Tue3:5210.54:3810.810:13-0.210:521.33:358:53First Quarter20Tue
21Wed4:439.55:2210.510:550.711:521.63:378:51First Quarter21Wed
22Thu5:418.56:1010.311:381.73:398:49First Quarter22Thu
23Fri6:527.87:0510.11:041.812:292.53:418:47First Quarter23Fri
24Sat8:247.48:0710.02:261.81:313.23:438:45Waxing Gibbous24Sat
25Sun9:537.59:0810.13:391.52:423.53:458:43Waxing Gibbous25Sun
26Mon10:587.910:0210.44:371.13:503.53:478:41Waxing Gibbous26Mon
27Tue11:448.310:5010.75:230.74:453.33:498:39Waxing Gibbous27Tue
28Wed12:208.76:020.35:323.03:518:37Waxing Gibbous28Wed
29Thu12:519.16:350.06:122.63:538:35Full Moon29Thu
30Fri12:1011.21:209.47:04-0.36:492.33:558:33Full Moon30Fri
31Sat12:4611.31:489.77:33-0.57:251.93:578:31Full Moon31Sat
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 1:26 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 transitional phase. Tonight's moon is 66% 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 First Quarter (66% 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