Tides Today & Tomorrow in Tonki Bay, AK

TIDE TIMES for Thursday, August 20, 2026
The tide is currently falling in Tonki Bay, AK.
Next low tide : in 5h 02m at 2:31 am (1.9 ft)
Next high tide : 8:40 am (7.3 ft)
Sunset today : 9:43 pm
Sunrise tomorrow : 6:40 am
Moon phase : First Quarter (47% illuminated)
Tide Station Location : Station #9457152
Common Questions About Tides

Tonki Bay, AK Tides - Jan 1925

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:0910.36:009.112:192.88:563:27First Quarter1Thu
2Fri7:0610.37:208.412:241.51:452.68:553:29First Quarter2Fri
3Sat8:0410.38:528.01:222.23:052.28:553:30First Quarter3Sat
4Sun8:5810.510:138.22:262.84:091.68:543:32Waxing Gibbous4Sun
5Mon9:4610.811:158.53:263.25:001.18:543:33Waxing Gibbous5Mon
6Tue10:3011.14:203.45:430.68:533:35Waxing Gibbous6Tue
7Wed12:028.811:09 AM11.45:073.46:190.28:523:36Waxing Gibbous7Wed
8Thu12:419.211:47 AM11.65:493.46:52-0.18:513:38Full Moon8Thu
9Fri1:149.412:2211.86:263.27:23-0.38:503:40Full Moon9Fri
10Sat1:469.612:5711.97:023.17:53-0.48:493:42Full Moon10Sat
11Sun2:169.71:3111.87:373.08:23-0.58:483:44Full Moon11Sun
12Mon2:479.82:0511.68:132.98:54-0.48:473:46Waning Gibbous12Mon
13Tue3:189.82:4011.28:502.89:27-0.28:463:48Waning Gibbous13Tue
14Wed3:519.83:1810.69:312.810:010.28:453:50Waning Gibbous14Wed
15Thu4:269.94:0110.010:172.810:380.78:433:52Waning Gibbous15Thu
16Fri5:0510.04:529.211:112.711:201.38:423:54Third Quarter16Fri
17Sat5:5010.15:578.512:152.68:403:56Third Quarter17Sat
18Sun6:4310.47:228.112:102.01:322.28:393:58Third Quarter18Sun
19Mon7:4410.88:588.11:112.62:531.58:374:00Waning Crescent19Mon
20Tue8:4811.310:218.52:213.04:040.68:364:02Waning Crescent20Tue
21Wed9:4912.011:269.23:313.15:04-0.38:344:04Waning Crescent21Wed
22Thu10:4712.64:372.95:56-1.18:324:07Waning Crescent22Thu
23Fri12:199.811:42 AM13.15:372.56:44-1.78:314:09New Moon23Fri
24Sat1:0510.412:3313.36:312.17:28-2.08:294:11New Moon24Sat
25Sun1:4910.81:2113.27:211.78:10-2.08:274:14New Moon25Sun
26Mon2:3111.02:0812.88:101.58:51-1.68:254:16Waxing Crescent26Mon
27Tue3:1211.12:5512.08:581.49:31-1.08:234:18Waxing Crescent27Tue
28Wed3:5311.13:4211.19:481.510:11-0.28:214:21Waxing Crescent28Wed
29Thu4:3510.94:3110.010:401.810:510.88:194:23First Quarter29Thu
30Fri5:1710.65:258.911:372.111:331.78:174:25First Quarter30Fri
31Sat6:0410.36:338.012:472.38:154:28First Quarter31Sat
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 5:35 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 47% 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 (47% 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