Tides Today & Tomorrow in Ninilchik, Cook Inlet, AK

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently falling in Ninilchik, Cook Inlet, AK.
Next low tide : in 4h 20m at 1:38 pm (2.8 ft)
Next high tide : 7:53 pm (18.9 ft)
Sunset today : 10:29 pm
Sunrise tomorrow : 5:55 am
Moon phase : Third Quarter (64% illuminated)
Tide Station Location : Station #9455653
Common Questions About Tides

Ninilchik, Cook Inlet, AK Tides - Apr 2086

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:1620.35:5018.911:38-1.211:442.57:288:52Waning Gibbous1Mon
2Tue5:4119.96:2118.012:08-0.77:258:54Waning Gibbous2Tue
3Wed6:0719.26:5616.912:123.712:410.17:228:57Waning Gibbous3Wed
4Thu6:3818.37:3615.712:424.91:191.17:198:59Waning Gibbous4Thu
5Fri7:1517.38:3114.61:206.12:082.27:169:01Third Quarter5Fri
6Sat8:0616.09:5314.02:157.33:153.17:139:04Third Quarter6Sat
7Sun9:2615.011:2814.53:437.84:403.37:109:06Third Quarter7Sun
8Mon11:1615.05:247.05:592.87:079:09Third Quarter8Mon
9Tue12:3816.112:4316.36:404.97:041.67:049:11Waning Crescent9Tue
10Wed1:2918.01:4618.27:392.27:570.47:019:14Waning Crescent10Wed
11Thu2:1420.12:3920.08:29-0.58:45-0.56:589:16Waning Crescent11Thu
12Fri2:5521.93:2721.49:14-2.99:29-1.16:559:19New Moon12Fri
13Sat3:3523.24:1322.19:57-4.710:11-1.16:529:21New Moon13Sat
14Sun4:1523.84:5822.110:40-5.510:53-0.56:499:24New Moon14Sun
15Mon4:5623.75:4321.511:24-5.411:360.66:469:26Waxing Crescent15Mon
16Tue5:3722.96:3020.212:08-4.46:439:29Waxing Crescent16Tue
17Wed6:1921.47:1818.612:202.012:54-2.76:409:31Waxing Crescent17Wed
18Thu7:0419.58:1416.91:083.71:45-0.76:379:34Waxing Crescent18Thu
19Fri7:5617.39:2115.52:045.42:451.36:349:36First Quarter19Fri
20Sat9:0515.310:4214.93:166.63:552.96:319:39First Quarter20Sat
21Sun10:3914.211:5815.34:406.95:093.76:299:41First Quarter21Sun
22Mon12:0714.36:006.16:183.76:269:44Waxing Gibbous22Mon
23Tue12:5616.11:1315.17:034.67:143.46:239:46Waxing Gibbous23Tue
24Wed1:4017.12:0316.27:523.08:002.96:209:48Waxing Gibbous24Wed
25Thu2:1618.12:4417.28:311.48:392.56:179:51Waxing Gibbous25Thu
26Fri2:4919.03:2118.19:070.09:152.36:149:53Waxing Gibbous26Fri
27Sat3:1919.73:5618.79:40-1.19:482.26:129:56Full Moon27Sat
28Sun3:4820.14:3019.010:12-1.910:202.46:099:58Full Moon28Sun
29Mon4:1620.25:0318.910:44-2.210:522.96:0610:01Full Moon29Mon
30Tue4:4520.15:3718.611:16-2.211:233.56:0310:03Full Moon30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9455653)

Common Questions About Ninilchik, Cook Inlet, AK Tides

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What time does the tide turn (slack tide) in Ninilchik, Cook Inlet, AK today?

Slack tide in Ninilchik, Cook Inlet, AK is approximately 4:45 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 Ninilchik, Cook Inlet, AK?

Ninilchik, Cook Inlet, AK is currently in a transitional phase. Tonight's moon is 64% 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 Ninilchik, Cook Inlet, 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 Ninilchik, Cook Inlet, AK?

Tide predictions for Ninilchik, Cook Inlet, 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 Ninilchik, Cook Inlet, AK?

Tide data for Ninilchik, Cook Inlet, AK is sourced from NOAA Station #9455653. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9455653.

What is the moon phase in Ninilchik, Cook Inlet, AK tonight?

Tonight the moon over Ninilchik, Cook Inlet, AK is Third Quarter (64% illuminated). This places Ninilchik, Cook Inlet, 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