Tides Today & Tomorrow in Ninilchik, Cook Inlet, AK

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently falling in Ninilchik, Cook Inlet, AK.
Next low tide : in 25m at 9:15 am (-3.2 ft)
Next high tide : 3:44 pm (19.5 ft)
Sunset today : 10:11 pm
Sunrise tomorrow : 6:12 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #9455653
Common Questions About Tides

Ninilchik, Cook Inlet, AK Tides - Sep 1949

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:0914.39:4216.63:152.43:338.35:017:11Waxing Gibbous1Thu
2Fri11:3215.411:0617.24:402.05:037.65:047:08Waxing Gibbous2Fri
3Sat12:2816.95:481.06:086.15:067:05Waxing Gibbous3Sat
4Sun12:0818.31:1018.26:39-0.26:574.45:097:02Waxing Gibbous4Sun
5Mon12:5619.31:4519.37:20-1.17:373.05:116:59Full Moon5Mon
6Tue1:3720.12:1620.07:56-1.58:121.85:136:56Full Moon6Tue
7Wed2:1320.42:4520.58:28-1.68:441.05:166:53Full Moon7Wed
8Thu2:4620.43:1120.68:57-1.19:140.55:186:50Full Moon8Thu
9Fri3:1720.13:3620.49:25-0.39:440.55:206:47Waning Gibbous9Fri
10Sat3:4719.43:5919.99:521.010:130.85:236:44Waning Gibbous10Sat
11Sun4:1718.44:2119.310:172.510:431.55:256:41Waning Gibbous11Sun
12Mon4:4817.24:4418.510:424.111:152.45:276:37Waning Gibbous12Mon
13Tue5:2215.85:1117.511:095.911:553.55:306:34Third Quarter13Tue
14Wed6:0514.25:4416.411:427.65:326:31Third Quarter14Wed
15Thu7:1512.86:3615.212:534.612:349.25:346:28Third Quarter15Thu
16Fri9:3712.68:1614.42:245.12:3710.15:376:25Third Quarter16Fri
17Sat11:0813.910:1715.24:004.44:309.25:396:22Waning Crescent17Sat
18Sun11:5615.811:2717.05:102.75:357.15:416:19Waning Crescent18Sun
19Mon12:3217.86:010.86:234.65:446:16Waning Crescent19Mon
20Tue12:1819.11:0619.86:44-0.97:042.05:466:13Waning Crescent20Tue
21Wed1:0420.91:3921.67:23-2.27:43-0.55:496:10New Moon21Wed
22Thu1:4722.32:1223.08:01-2.78:22-2.55:516:07New Moon22Thu
23Fri2:3023.02:4723.88:38-2.59:02-3.75:536:04New Moon23Fri
24Sat3:1322.93:2224.09:16-1.59:44-4.05:566:01Waxing Crescent24Sat
25Sun3:5721.93:5923.49:540.110:28-3.35:585:58Waxing Crescent25Sun
26Mon4:4420.34:3822.110:352.211:16-1.86:005:55Waxing Crescent26Mon
27Tue5:3518.25:2220.211:214.66:035:52First Quarter27Tue
28Wed6:4016.16:1718.012:130.212:196.96:055:49First Quarter28Wed
29Thu8:1214.77:4216.11:262.21:478.56:075:46First Quarter29Thu
30Fri9:5914.89:3615.52:553.23:348.66:105:43First Quarter30Fri
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 12:29 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 1% 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 New Moon (1% 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