Tides Today & Tomorrow in Ninilchik, Cook Inlet, AK

TIDE TIMES for Sunday, August 23, 2026
The tide is currently rising in Ninilchik, Cook Inlet, AK.
Next low tide : 7:46 pm (7.8 ft)
Next high tide : in 1h 10m at 2:18 pm (14.8 ft)
Sunset today : 9:37 pm
Sunrise tomorrow : 6:41 am
Moon phase : Waxing Gibbous (83% illuminated)
Tide Station Location : Station #9455653
Common Questions About Tides

Ninilchik, Cook Inlet, AK Tides - Oct 1931

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:3217.44:1618.910:195.110:531.76:115:41Waning Gibbous1Thu
2Fri5:0716.04:4417.810:466.611:332.96:135:38Waning Gibbous2Fri
3Sat5:5314.55:2116.611:228.26:155:35Third Quarter3Sat
4Sun7:0913.26:1715.312:324.112:259.66:185:32Third Quarter4Sun
5Mon9:2313.38:0914.52:064.62:4210.06:205:29Third Quarter5Mon
6Tue10:4514.810:1115.43:424.04:238.46:235:26Waning Crescent6Tue
7Wed11:3316.811:2117.44:522.55:255.86:255:23Waning Crescent7Wed
8Thu12:1019.05:440.96:122.96:275:20Waning Crescent8Thu
9Fri12:1319.512:4521.16:29-0.56:54-0.16:305:17Waning Crescent9Fri
10Sat1:0021.31:2022.87:09-1.47:35-2.56:325:14New Moon10Sat
11Sun1:4522.51:5524.07:49-1.58:15-4.36:355:11New Moon11Sun
12Mon2:2823.02:3224.68:28-1.08:56-5.06:375:09New Moon12Mon
13Tue3:1222.63:0924.39:070.19:38-4.76:405:06Waxing Crescent13Tue
14Wed3:5721.53:4723.29:471.810:22-3.46:425:03Waxing Crescent14Wed
15Thu4:4519.84:2821.510:293.811:11-1.46:455:00Waxing Crescent15Thu
16Fri5:3817.75:1319.311:186.06:474:57First Quarter16Fri
17Sat6:4615.96:1216.912:090.912:237.96:504:54First Quarter17Sat
18Sun8:1914.87:4715.11:232.81:599.06:524:51First Quarter18Sun
19Mon9:5515.29:3814.82:503.83:408.46:554:48First Quarter19Mon
20Tue11:0116.410:5615.74:093.74:566.86:574:45Waxing Gibbous20Tue
21Wed11:4517.711:4916.95:103.15:474.87:004:42Waxing Gibbous21Wed
22Thu12:1918.95:562.46:262.97:024:40Waxing Gibbous22Thu
23Fri12:3118.012:4919.86:331.96:591.37:054:37Waxing Gibbous23Fri
24Sat1:0718.91:1520.57:061.77:300.07:074:34Full Moon24Sat
25Sun1:4019.51:4121.07:361.87:59-0.97:104:31Full Moon25Sun
26Mon2:1219.82:0521.28:052.28:28-1.37:124:28Full Moon26Mon
27Tue2:4319.82:2921.08:342.98:57-1.37:154:26Full Moon27Tue
28Wed3:1419.32:5420.79:013.99:26-0.97:174:23Waning Gibbous28Wed
29Thu3:4618.63:1920.09:285.09:58-0.27:204:20Waning Gibbous29Thu
30Fri4:2017.63:4719.29:576.210:330.87:224:18Waning Gibbous30Fri
31Sat4:5916.44:2018.110:317.411:161.97:254:15Waning Gibbous31Sat
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 5:02 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 spring phase. Tonight's moon is 83% 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 maximum.

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 Waxing Gibbous (83% illuminated). This places Ninilchik, Cook Inlet, AK in a spring tide cycle, so tidal ranges are near their weekly maximum 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