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 : 1:38 pm (3.7 ft)
Next high tide : in 1h 52m at 8:40 am (7.3 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 - Oct 1923

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:378.64:2110.110:173.311:161.86:115:44Third Quarter1Mon
2Tue5:358.25:139.711:063.86:135:41Third Quarter2Tue
3Wed6:548.06:219.512:192.112:144.26:155:39Third Quarter3Wed
4Thu8:248.27:449.51:362.11:424.16:185:36Third Quarter4Thu
5Fri9:298.79:009.92:511.83:043.56:205:33Waning Crescent5Fri
6Sat10:159.510:0310.43:501.34:062.66:225:30Waning Crescent6Sat
7Sun10:5410.310:5811.04:380.74:581.66:245:27Waning Crescent7Sun
8Mon11:3211.111:4811.45:210.35:450.56:275:24New Moon8Mon
9Tue12:1011.96:020.16:30-0.46:295:22New Moon9Tue
10Wed12:3611.712:4812.56:430.17:15-1.06:315:19New Moon10Wed
11Thu1:2311.71:2712.97:230.38:00-1.46:335:16Waxing Crescent11Thu
12Fri2:1111.42:0812.98:050.78:47-1.36:365:13Waxing Crescent12Fri
13Sat3:0110.92:5212.78:481.39:36-0.96:385:11Waxing Crescent13Sat
14Sun3:5410.33:3912.19:342.010:30-0.36:405:08Waxing Crescent14Sun
15Mon4:549.74:3311.410:272.811:310.46:425:05First Quarter15Mon
16Tue6:059.25:3710.511:323.46:455:02First Quarter16Tue
17Wed7:299.06:589.912:451.112:593.76:475:00First Quarter17Wed
18Thu8:499.38:269.72:081.42:393.56:494:57Waxing Gibbous18Thu
19Fri9:489.79:409.83:191.43:522.86:524:54Waxing Gibbous19Fri
20Sat10:3310.210:3810.04:141.34:462.16:544:52Waxing Gibbous20Sat
21Sun11:1010.611:2610.24:581.35:291.46:564:49Waxing Gibbous21Sun
22Mon11:4110.95:351.36:050.96:584:46Full Moon22Mon
23Tue12:0610.312:0911.26:071.46:380.57:014:44Full Moon23Tue
24Wed12:4210.312:3611.46:361.67:080.27:034:41Full Moon24Wed
25Thu1:1610.31:0311.67:051.87:380.07:054:38Full Moon25Thu
26Fri1:5010.21:3111.67:342.18:100.17:084:36Waning Gibbous26Fri
27Sat2:2310.02:0011.58:042.48:430.27:104:33Waning Gibbous27Sat
28Sun2:599.72:3111.28:362.89:190.57:134:31Waning Gibbous28Sun
29Mon3:379.33:0610.99:113.29:590.87:154:28Waning Gibbous29Mon
30Tue4:219.03:4610.49:513.710:451.27:174:26Waning Gibbous30Tue
31Wed5:148.74:3510.010:424.011:401.57:204:23Third Quarter31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9457152)

Common Questions About Tonki Bay, AK Tides

Show All
What time does the tide turn (slack tide) in Tonki Bay, AK today?

Slack tide in Tonki Bay, AK is approximately 11:09 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