Tides Today & Tomorrow in Tonki Bay, AK

TIDE TIMES for Thursday, August 20, 2026
The tide is currently rising in Tonki Bay, AK.
Next low tide (tomorrow) : 4:02 am (2.1 ft)
Next high tide : in 2h 23m at 8:10 pm (9.9 ft)
Sunset today : 9:40 pm
Sunrise tomorrow : 6:42 am
Moon phase : First Quarter (57% illuminated)
Tide Station Location : Station #9457152
Common Questions About Tides

Tonki Bay, AK Tides - Jun 1922

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:3010.35:549.411:19-0.311:442.53:128:59First Quarter1Thu
2Fri5:339.66:549.712:150.23:119:00First Quarter2Fri
3Sat6:499.07:5610.11:032.31:170.73:109:02First Quarter3Sat
4Sun8:148.68:5310.62:261.72:211.13:089:03Waxing Gibbous4Sun
5Mon9:348.79:4611.23:390.93:221.43:079:05Waxing Gibbous5Mon
6Tue10:448.910:3611.74:400.04:191.63:069:06Waxing Gibbous6Tue
7Wed11:439.211:2212.05:32-0.75:121.73:059:07Full Moon7Wed
8Thu12:359.56:20-1.26:011.83:059:08Full Moon8Thu
9Fri12:0712.21:229.77:03-1.56:471.93:049:10Full Moon9Fri
10Sat12:4912.22:059.87:44-1.57:302.03:039:11Full Moon10Sat
11Sun1:2912.02:479.78:23-1.48:122.23:039:12Waning Gibbous11Sun
12Mon2:0811.63:289.69:01-1.08:542.43:029:13Waning Gibbous12Mon
13Tue2:4811.04:089.49:39-0.69:372.73:029:14Waning Gibbous13Tue
14Wed3:2810.34:489.210:17-0.110:242.93:019:14Waning Gibbous14Wed
15Thu4:119.65:319.010:560.511:173.03:019:15Third Quarter15Thu
16Fri4:598.96:179.011:381.13:019:16Third Quarter16Fri
17Sat5:568.27:079.112:203.012:251.63:009:16Third Quarter17Sat
18Sun7:077.77:599.41:352.81:182.13:009:17Third Quarter18Sun
19Mon8:287.58:489.82:502.32:152.43:009:17Waning Crescent19Mon
20Tue9:427.79:3410.23:501.73:112.63:009:18Waning Crescent20Tue
21Wed10:448.010:1910.84:391.04:032.63:019:18Waning Crescent21Wed
22Thu11:368.411:0111.35:230.34:522.63:019:18Waning Crescent22Thu
23Fri12:218.96:04-0.45:392.43:019:18New Moon23Fri
24Sat1:039.36:43-1.06:242.33:029:18New Moon24Sat
25Sun12:2612.11:439.67:22-1.47:092.13:029:18New Moon25Sun
26Mon1:0912.32:259.88:02-1.77:541.93:039:18Waxing Crescent26Mon
27Tue1:5212.23:0710.08:43-1.78:421.83:039:18Waxing Crescent27Tue
28Wed2:3811.83:5110.19:25-1.59:331.83:049:18Waxing Crescent28Wed
29Thu3:2811.24:3710.210:09-1.110:291.83:059:17Waxing Crescent29Thu
30Fri4:2110.45:2610.310:56-0.411:331.83:059:17First Quarter30Fri
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 12:06 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 57% 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 (57% 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