Tides Today & Tomorrow in Tonki Bay, AK

TIDE TIMES for Friday, August 21, 2026
The tide is currently falling in Tonki Bay, AK.
Next low tide : in 3h 17m at 2:41 pm (4.3 ft)
Next high tide : 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 - Jan 1921

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:3110.86:558.51:132.28:563:27Third Quarter1Sat
2Sun7:3110.78:288.112:492.22:391.98:553:29Third Quarter2Sun
3Mon8:3210.89:558.11:552.93:501.58:553:30Waning Crescent3Mon
4Tue9:2910.911:038.53:033.34:471.08:543:32Waning Crescent4Tue
5Wed10:1911.211:538.94:063.45:340.58:543:33Waning Crescent5Wed
6Thu11:0311.44:593.46:130.28:533:35Waning Crescent6Thu
7Fri12:339.211:43 AM11.65:443.36:47-0.18:523:36New Moon7Fri
8Sat1:079.512:1911.76:233.17:18-0.38:513:38New Moon8Sat
9Sun1:379.812:5411.86:592.97:46-0.48:503:40New Moon9Sun
10Mon2:069.91:2711.67:332.78:15-0.48:493:42New Moon10Mon
11Tue2:3510.02:0011.48:082.68:43-0.28:483:44Waxing Crescent11Tue
12Wed3:0410.12:3411.08:442.59:130.08:473:45Waxing Crescent12Wed
13Thu3:3510.13:1010.49:232.59:450.48:463:47Waxing Crescent13Thu
14Fri4:0710.23:499.810:052.510:190.98:453:49Waxing Crescent14Fri
15Sat4:4310.24:359.110:542.510:561.58:433:51First Quarter15Sat
16Sun5:2410.35:338.411:522.511:412.28:423:54First Quarter16Sun
17Mon6:1410.46:507.91:032.38:413:56First Quarter17Mon
18Tue7:1410.78:287.812:382.82:241.88:393:58First Quarter18Tue
19Wed8:2011.19:578.21:493.23:391.08:374:00Waxing Gibbous19Wed
20Thu9:2511.711:048.93:043.34:410.18:364:02Waxing Gibbous20Thu
21Fri10:2612.311:569.64:143.05:34-0.78:344:04Waxing Gibbous21Fri
22Sat11:2212.85:162.56:22-1.48:324:07Full Moon22Sat
23Sun12:4210.312:1413.26:121.97:06-1.98:314:09Full Moon23Sun
24Mon1:2510.91:0413.27:031.47:48-2.08:294:11Full Moon24Mon
25Tue2:0611.31:5212.97:531.08:29-1.78:274:14Waning Gibbous25Tue
26Wed2:4711.62:3912.28:410.89:09-1.28:254:16Waning Gibbous26Wed
27Thu3:2911.63:2711.39:310.89:49-0.48:234:18Waning Gibbous27Thu
28Fri4:1111.54:1710.210:241.110:290.58:214:21Waning Gibbous28Fri
29Sat4:5411.25:129.211:201.511:121.68:194:23Third Quarter29Sat
30Sun5:4210.86:188.212:281.88:174:25Third Quarter30Sun
31Mon6:3610.57:517.712:012.51:532.08:154:28Third Quarter31Mon
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 6:00 pm — 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