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 : 11:49 am (1.0 ft)
Next high tide : in 3h 44m at 5:47 am (9.7 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 1930

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:598.38:369.43:031.92:574.76:125:43Waxing Gibbous1Wed
2Thu10:428.79:469.74:051.64:074.06:145:41Waxing Gibbous2Thu
3Fri11:129.210:3810.04:491.34:533.26:165:38Waxing Gibbous3Fri
4Sat11:379.611:2010.35:231.05:302.46:185:35Waxing Gibbous4Sat
5Sun11:5910.111:5710.45:510.96:031.66:205:32Full Moon5Sun
6Mon12:2110.66:170.86:341.06:235:29Full Moon6Mon
7Tue12:3310.512:4411.06:420.97:050.46:255:26Full Moon7Tue
8Wed1:0710.51:0811.47:071.27:360.06:275:24Full Moon8Wed
9Thu1:4210.31:3411.77:351.68:10-0.26:295:21Waning Gibbous9Thu
10Fri2:1810.02:0211.88:032.18:46-0.16:325:18Waning Gibbous10Fri
11Sat2:579.62:3311.88:342.69:270.16:345:15Waning Gibbous11Sat
12Sun3:429.13:1011.69:073.210:160.46:365:12Waning Gibbous12Sun
13Mon4:368.53:5611.29:483.811:140.96:385:10Third Quarter13Mon
14Tue5:498.14:5610.710:434.36:415:07Third Quarter14Tue
15Wed7:308.06:1810.312:291.212:084.66:435:04Third Quarter15Wed
16Thu8:578.57:5410.11:561.21:574.36:455:02Third Quarter16Thu
17Fri9:509.39:1710.43:100.93:273.36:484:59Waning Crescent17Fri
18Sat10:3110.210:2410.74:060.54:302.06:504:56Waning Crescent18Sat
19Sun11:0811.011:2211.04:530.35:220.86:524:53Waning Crescent19Sun
20Mon11:4411.85:340.36:09-0.36:554:51New Moon20Mon
21Tue12:1311.112:1812.46:130.56:52-1.06:574:48New Moon21Tue
22Wed1:0111.012:5312.86:501.07:34-1.46:594:45New Moon22Wed
23Thu1:4610.71:2712.87:261.58:15-1.37:024:43Waxing Crescent23Thu
24Fri2:3210.32:0212.68:022.28:56-0.97:044:40Waxing Crescent24Fri
25Sat3:189.82:3812.18:392.99:39-0.27:064:38Waxing Crescent25Sat
26Sun4:079.23:1711.49:183.610:260.67:094:35Waxing Crescent26Sun
27Mon5:038.74:0110.610:014.211:221.37:114:33First Quarter27Mon
28Tue6:168.34:559.910:574.77:134:30First Quarter28Tue
29Wed7:508.26:109.212:321.912:214.97:164:28First Quarter29Wed
30Thu9:028.57:448.91:562.12:244.67:184:25First Quarter30Thu
31Fri9:458.99:058.93:032.03:373.87:204:23Waxing Gibbous31Fri
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 8:48 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 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